/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:32:06,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:32:06,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:32:06,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:32:06,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:32:06,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:32:06,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:32:06,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:32:06,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:32:06,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:32:06,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:32:06,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:32:06,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:32:06,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:32:06,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:32:06,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:32:06,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:32:06,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:32:06,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:32:06,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:32:06,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:32:06,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:32:06,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:32:06,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:32:06,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:32:06,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:32:06,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:32:06,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:32:06,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:32:06,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:32:06,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:32:06,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:32:06,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:32:06,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:32:06,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:32:06,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:32:06,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:32:06,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:32:06,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:32:06,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:32:06,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:32:06,408 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:32:06,423 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:32:06,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:32:06,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:32:06,425 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:32:06,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:32:06,425 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:32:06,425 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:32:06,425 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:32:06,426 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:32:06,426 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:32:06,426 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:32:06,426 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:32:06,426 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:32:06,426 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:32:06,427 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:06,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:32:06,427 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:32:06,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:32:06,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:32:06,428 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:32:06,428 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:32:06,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:32:06,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:32:06,428 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:32:06,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:32:06,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:32:06,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:32:06,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:32:06,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:32:06,597 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:32:06,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:32:06,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:32:06,615 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:32:06,616 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:32:06,616 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:32:06,871 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_cA_rHl/tmp/c426783f348f43f9ad95528aeb3e9f0a/FLAG4a22bb0ff !SESSION 2020-07-01 11:32:04.171 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_cA_rHl/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.cdt.core 1 0 2020-07-01 11:32:07.003 !MESSAGE Indexed 'FLAG4a22bb0ff' (0 sources, 0 headers) in 0.002 sec: 0 declarations; 0 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%) [2020-07-01 11:32:07,212 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:32:07,213 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:32:07,220 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_cA_rHl/tmp/c426783f348f43f9ad95528aeb3e9f0a/FLAG4a22bb0ff [2020-07-01 11:32:07,624 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_cA_rHl/tmp/c426783f348f43f9ad95528aeb3e9f0a [2020-07-01 11:32:07,635 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:32:07,636 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:32:07,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:32:07,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:32:07,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:32:07,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:32:07" (1/1) ... [2020-07-01 11:32:07,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14ec433f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:32:07, skipping insertion in model container [2020-07-01 11:32:07,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:32:07" (1/1) ... [2020-07-01 11:32:07,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:32:07,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:32:07,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:32:07,907 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:32:07,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:32:07,940 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:32:07,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:32:07 WrapperNode [2020-07-01 11:32:07,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:32:07,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:32:07,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:32:07,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:32:07,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:32:07" (1/1) ... [2020-07-01 11:32:07,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:32:07" (1/1) ... [2020-07-01 11:32:07,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:32:07,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:32:07,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:32:07,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:32:07,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:32:07" (1/1) ... [2020-07-01 11:32:07,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:32:07" (1/1) ... [2020-07-01 11:32:07,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:32:07" (1/1) ... [2020-07-01 11:32:07,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:32:07" (1/1) ... [2020-07-01 11:32:07,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:32:07" (1/1) ... [2020-07-01 11:32:07,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:32:07" (1/1) ... [2020-07-01 11:32:07,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:32:07" (1/1) ... [2020-07-01 11:32:08,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:32:08,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:32:08,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:32:08,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:32:08,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:32:07" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:32:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:32:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:32:08,250 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:32:08,250 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-01 11:32:08,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:32:08 BoogieIcfgContainer [2020-07-01 11:32:08,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:32:08,255 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:32:08,255 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:32:08,257 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:32:08,258 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:32:08" (1/1) ... [2020-07-01 11:32:08,271 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 15 edges [2020-07-01 11:32:08,273 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:32:08,274 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:32:08,274 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:32:08,275 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:32:08,276 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:32:08,277 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:32:08,278 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:32:08,294 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:32:08,311 INFO L200 BlockEncoder]: SBE split 4 edges [2020-07-01 11:32:08,316 INFO L70 emoveInfeasibleEdges]: Removed 3 edges and 0 locations because of local infeasibility [2020-07-01 11:32:08,318 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:32:08,328 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 11:32:08,331 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:32:08,332 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:32:08,332 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:32:08,332 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:32:08,333 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:32:08,333 INFO L313 BlockEncoder]: Encoded RCFG 6 locations, 12 edges [2020-07-01 11:32:08,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:32:08 BasicIcfg [2020-07-01 11:32:08,334 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:32:08,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:32:08,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:32:08,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:32:08,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:32:07" (1/4) ... [2020-07-01 11:32:08,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562b6b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:32:08, skipping insertion in model container [2020-07-01 11:32:08,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:32:07" (2/4) ... [2020-07-01 11:32:08,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562b6b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:32:08, skipping insertion in model container [2020-07-01 11:32:08,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:32:08" (3/4) ... [2020-07-01 11:32:08,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562b6b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:32:08, skipping insertion in model container [2020-07-01 11:32:08,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:32:08" (4/4) ... [2020-07-01 11:32:08,343 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:32:08,353 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:32:08,361 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:32:08,376 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:32:08,402 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:32:08,403 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:32:08,403 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:32:08,403 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:32:08,403 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:32:08,403 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:32:08,404 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:32:08,404 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:32:08,418 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-07-01 11:32:08,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:32:08,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-07-01 11:32:08,483 INFO L271 CegarLoopResult]: At program point L18-2(lines 18 20) the Hoare annotation is: true [2020-07-01 11:32:08,483 INFO L268 CegarLoopResult]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2020-07-01 11:32:08,484 INFO L271 CegarLoopResult]: At program point L16-2(lines 16 22) the Hoare annotation is: true [2020-07-01 11:32:08,484 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:32:08,484 INFO L268 CegarLoopResult]: For program point L16-3(lines 16 22) no Hoare annotation was computed. [2020-07-01 11:32:08,484 INFO L271 CegarLoopResult]: At program point L14-2(lines 14 24) the Hoare annotation is: true [2020-07-01 11:32:08,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:32:08 BasicIcfg [2020-07-01 11:32:08,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:32:08,494 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:32:08,494 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:32:08,497 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:32:08,498 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:32:08,498 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:32:07" (1/5) ... [2020-07-01 11:32:08,499 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41c171b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:32:08, skipping insertion in model container [2020-07-01 11:32:08,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:32:08,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:32:07" (2/5) ... [2020-07-01 11:32:08,499 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41c171b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:32:08, skipping insertion in model container [2020-07-01 11:32:08,500 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:32:08,500 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:32:08" (3/5) ... [2020-07-01 11:32:08,500 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41c171b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:32:08, skipping insertion in model container [2020-07-01 11:32:08,500 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:32:08,500 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:32:08" (4/5) ... [2020-07-01 11:32:08,501 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41c171b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:32:08, skipping insertion in model container [2020-07-01 11:32:08,501 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:32:08,501 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:32:08" (5/5) ... [2020-07-01 11:32:08,503 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:32:08,530 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:32:08,530 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:32:08,530 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:32:08,530 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:32:08,531 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:32:08,531 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:32:08,531 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:32:08,531 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:32:08,534 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-01 11:32:08,552 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:32:08,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:32:08,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:32:08,558 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:32:08,558 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:32:08,558 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:32:08,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-01 11:32:08,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-07-01 11:32:08,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:32:08,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:32:08,559 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:32:08,560 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:32:08,565 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [45] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_#t~post4] 6#L14-2true [2020-07-01 11:32:08,565 INFO L796 eck$LassoCheckResult]: Loop: 6#L14-2true [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 8#L16-2true [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 7#L16-3true [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 6#L14-2true [2020-07-01 11:32:08,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:08,572 INFO L82 PathProgramCache]: Analyzing trace with hash 76, now seen corresponding path program 1 times [2020-07-01 11:32:08,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:08,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082334010] [2020-07-01 11:32:08,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:08,644 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:08,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:08,646 INFO L82 PathProgramCache]: Analyzing trace with hash 81800, now seen corresponding path program 1 times [2020-07-01 11:32:08,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:08,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835559232] [2020-07-01 11:32:08,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:08,671 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:08,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:08,674 INFO L82 PathProgramCache]: Analyzing trace with hash 2316125, now seen corresponding path program 1 times [2020-07-01 11:32:08,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:08,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696071762] [2020-07-01 11:32:08,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:08,690 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:08,757 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:08,758 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:08,758 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:08,758 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:08,758 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:32:08,758 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:08,759 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:08,759 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:08,759 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:32:08,759 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:08,759 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:08,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:08,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:08,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:08,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:08,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:08,884 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:08,885 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:08,891 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:08,891 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:08,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:32:08,929 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:08,950 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:08,950 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-1}, {ULTIMATE.start_main_~y~0=-2}, {ULTIMATE.start_main_~y~0=4}] Lambdas: [1, 3, 1] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:08,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:08,986 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:08,990 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:08,991 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8=0} Honda state: {ULTIMATE.start_main_#t~post8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:09,023 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:09,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:09,028 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:09,028 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:09,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:09,062 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:09,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:32:09,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:09,135 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:32:09,137 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:09,137 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:09,137 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:09,138 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:09,138 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:32:09,138 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:09,138 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:09,138 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:09,138 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:32:09,138 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:09,138 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:09,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:09,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:09,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:09,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:09,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:09,222 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:09,228 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:09,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:09,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:09,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:09,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:09,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:09,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:09,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:09,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:09,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:09,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:09,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:09,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:09,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:09,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:09,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:09,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:09,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:09,284 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:09,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:09,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:09,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:09,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:09,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:09,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:09,320 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:09,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:09,323 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:09,355 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:09,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:09,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:09,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:09,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:09,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:09,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:09,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:09,363 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:32:09,368 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:32:09,368 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:09,373 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:32:09,373 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:32:09,373 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:32:09,374 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:32:09,410 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:32:09,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:09,439 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:32:09,440 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:09,451 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:32:09,452 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:09,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:32:09,496 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:32:09,501 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:32:09,502 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states. Second operand 3 states. [2020-07-01 11:32:09,578 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states.. Second operand 3 states. Result 20 states and 45 transitions. Complement of second has 6 states. [2020-07-01 11:32:09,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 11:32:09,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:32:09,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-07-01 11:32:09,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-01 11:32:09,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:09,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-01 11:32:09,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:09,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-01 11:32:09,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:09,593 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 45 transitions. [2020-07-01 11:32:09,595 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-07-01 11:32:09,601 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 17 states and 39 transitions. [2020-07-01 11:32:09,603 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-07-01 11:32:09,603 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-07-01 11:32:09,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 39 transitions. [2020-07-01 11:32:09,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:32:09,604 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 39 transitions. [2020-07-01 11:32:09,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 39 transitions. [2020-07-01 11:32:09,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-07-01 11:32:09,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-01 11:32:09,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 35 transitions. [2020-07-01 11:32:09,636 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 35 transitions. [2020-07-01 11:32:09,636 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 35 transitions. [2020-07-01 11:32:09,636 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:32:09,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 35 transitions. [2020-07-01 11:32:09,637 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-07-01 11:32:09,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:32:09,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:32:09,638 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:32:09,638 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:32:09,639 INFO L794 eck$LassoCheckResult]: Stem: 70#ULTIMATE.startENTRY [45] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_#t~post4] 71#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 75#L16-2 [67] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 72#L18-2 [2020-07-01 11:32:09,639 INFO L796 eck$LassoCheckResult]: Loop: 72#L18-2 [68] L18-2-->L18-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet5_3|) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 66#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 67#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 72#L18-2 [2020-07-01 11:32:09,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:09,639 INFO L82 PathProgramCache]: Analyzing trace with hash 74715, now seen corresponding path program 1 times [2020-07-01 11:32:09,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:09,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884406628] [2020-07-01 11:32:09,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:09,654 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:09,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:09,654 INFO L82 PathProgramCache]: Analyzing trace with hash 96569, now seen corresponding path program 1 times [2020-07-01 11:32:09,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:09,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31299806] [2020-07-01 11:32:09,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:09,664 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:09,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:09,665 INFO L82 PathProgramCache]: Analyzing trace with hash -2069065953, now seen corresponding path program 1 times [2020-07-01 11:32:09,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:09,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742461430] [2020-07-01 11:32:09,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:09,685 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:09,714 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:09,714 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:09,714 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:09,714 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:09,715 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:32:09,715 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:09,715 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:09,715 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:09,715 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:32:09,715 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:09,715 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:09,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:09,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:09,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:09,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:09,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:09,776 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:09,776 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:09,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:09,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:09,789 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:09,789 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:09,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:09,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:09,828 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:09,828 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=-1} Honda state: {ULTIMATE.start_main_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:09,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:09,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:09,868 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:09,868 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:09,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:09,903 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:09,943 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:32:09,943 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:10,158 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:32:10,161 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:10,161 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:10,161 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:10,161 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:10,161 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:32:10,161 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:10,161 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:10,162 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:10,162 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:32:10,162 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:10,162 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:10,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:10,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:10,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:10,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:10,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:10,232 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:10,232 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:10,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:10,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:10,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:10,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:10,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:10,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:10,242 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:10,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:10,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:10,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:10,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:10,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:10,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:10,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:10,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:10,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:10,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:10,285 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:10,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:10,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:10,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:10,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:10,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:10,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:10,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:10,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:10,328 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:32:10,335 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:32:10,335 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:10,341 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:32:10,342 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:32:10,342 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:32:10,342 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:32:10,373 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:32:10,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:10,401 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:32:10,402 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:10,407 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:32:10,408 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:10,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:32:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:10,421 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:32:10,422 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:10,440 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:32:10,441 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:32:10,442 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 16 states and 35 transitions. cyclomatic complexity: 22 Second operand 4 states. [2020-07-01 11:32:10,503 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 16 states and 35 transitions. cyclomatic complexity: 22. Second operand 4 states. Result 37 states and 85 transitions. Complement of second has 6 states. [2020-07-01 11:32:10,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 11:32:10,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:32:10,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-07-01 11:32:10,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 3 letters. [2020-07-01 11:32:10,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:10,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 11:32:10,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:10,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 6 letters. [2020-07-01 11:32:10,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:10,508 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 85 transitions. [2020-07-01 11:32:10,511 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2020-07-01 11:32:10,512 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 33 states and 76 transitions. [2020-07-01 11:32:10,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-07-01 11:32:10,513 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-07-01 11:32:10,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 76 transitions. [2020-07-01 11:32:10,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:32:10,513 INFO L688 BuchiCegarLoop]: Abstraction has 33 states and 76 transitions. [2020-07-01 11:32:10,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 76 transitions. [2020-07-01 11:32:10,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-07-01 11:32:10,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-07-01 11:32:10,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 74 transitions. [2020-07-01 11:32:10,518 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 74 transitions. [2020-07-01 11:32:10,518 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 74 transitions. [2020-07-01 11:32:10,518 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:32:10,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 74 transitions. [2020-07-01 11:32:10,520 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2020-07-01 11:32:10,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:32:10,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:32:10,520 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:32:10,520 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:32:10,520 INFO L794 eck$LassoCheckResult]: Stem: 176#ULTIMATE.startENTRY [45] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_#t~post4] 177#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 178#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 183#L18-2 [2020-07-01 11:32:10,521 INFO L796 eck$LassoCheckResult]: Loop: 183#L18-2 [68] L18-2-->L18-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet5_3|) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 168#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 169#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 183#L18-2 [2020-07-01 11:32:10,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:10,521 INFO L82 PathProgramCache]: Analyzing trace with hash 74714, now seen corresponding path program 1 times [2020-07-01 11:32:10,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:10,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792854628] [2020-07-01 11:32:10,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:10,534 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:10,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:10,534 INFO L82 PathProgramCache]: Analyzing trace with hash 96569, now seen corresponding path program 2 times [2020-07-01 11:32:10,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:10,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431203345] [2020-07-01 11:32:10,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:10,542 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:10,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:10,542 INFO L82 PathProgramCache]: Analyzing trace with hash -2069095744, now seen corresponding path program 1 times [2020-07-01 11:32:10,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:10,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105313678] [2020-07-01 11:32:10,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:10,560 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:10,584 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:10,584 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:10,584 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:10,584 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:10,584 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:32:10,584 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:10,584 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:10,584 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:10,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:32:10,585 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:10,585 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:10,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:10,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:10,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:10,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:10,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:10,643 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:10,644 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:10,661 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:10,661 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:10,672 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:10,672 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=-1} Honda state: {ULTIMATE.start_main_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:10,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:10,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:10,708 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:10,708 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:10,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:10,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:10,743 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:10,743 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:10,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:10,775 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:10,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:32:10,810 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:11,182 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:32:11,184 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:11,184 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:11,184 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:11,184 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:11,185 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:32:11,185 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:11,185 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:11,185 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:11,185 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:32:11,185 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:11,185 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:11,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,237 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:11,237 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:11,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:11,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:11,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:11,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:11,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:11,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:11,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:11,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:11,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:11,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:11,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:11,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:11,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:11,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:11,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:11,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:11,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:11,282 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:11,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:11,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:11,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:11,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:11,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:11,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:11,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:11,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:11,320 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:32:11,328 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:32:11,328 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:11,331 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:32:11,331 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:32:11,331 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:32:11,331 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 11:32:11,361 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:32:11,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:11,378 INFO L264 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:32:11,379 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:11,383 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:32:11,384 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:11,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:32:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:11,398 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:32:11,399 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:11,419 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:32:11,419 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:32:11,419 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 31 states and 74 transitions. cyclomatic complexity: 47 Second operand 4 states. [2020-07-01 11:32:11,473 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 31 states and 74 transitions. cyclomatic complexity: 47. Second operand 4 states. Result 79 states and 195 transitions. Complement of second has 6 states. [2020-07-01 11:32:11,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 11:32:11,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:32:11,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-07-01 11:32:11,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 3 letters. [2020-07-01 11:32:11,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:11,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 11:32:11,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:11,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 6 letters. [2020-07-01 11:32:11,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:11,477 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 195 transitions. [2020-07-01 11:32:11,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2020-07-01 11:32:11,482 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 62 states and 152 transitions. [2020-07-01 11:32:11,482 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-07-01 11:32:11,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-07-01 11:32:11,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 152 transitions. [2020-07-01 11:32:11,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:32:11,483 INFO L688 BuchiCegarLoop]: Abstraction has 62 states and 152 transitions. [2020-07-01 11:32:11,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 152 transitions. [2020-07-01 11:32:11,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 23. [2020-07-01 11:32:11,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-01 11:32:11,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 55 transitions. [2020-07-01 11:32:11,487 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 55 transitions. [2020-07-01 11:32:11,487 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 55 transitions. [2020-07-01 11:32:11,487 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:32:11,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 55 transitions. [2020-07-01 11:32:11,488 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-07-01 11:32:11,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:32:11,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:32:11,489 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:32:11,489 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-07-01 11:32:11,489 INFO L794 eck$LassoCheckResult]: Stem: 335#ULTIMATE.startENTRY [45] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_#t~post4] 336#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 337#L16-2 [67] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 331#L18-2 [71] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (> 0 |v_ULTIMATE.start_main_#t~nondet5_5|) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 333#L18-2 [69] L18-2-->L18-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 3) v_ULTIMATE.start_main_~y~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 327#L18-3 [2020-07-01 11:32:11,489 INFO L796 eck$LassoCheckResult]: Loop: 327#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 328#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 339#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 340#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 344#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 343#L18-2 [68] L18-2-->L18-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet5_3|) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 327#L18-3 [2020-07-01 11:32:11,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:11,490 INFO L82 PathProgramCache]: Analyzing trace with hash 71803385, now seen corresponding path program 1 times [2020-07-01 11:32:11,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:11,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366029930] [2020-07-01 11:32:11,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:11,510 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:11,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:11,511 INFO L82 PathProgramCache]: Analyzing trace with hash -2087044618, now seen corresponding path program 1 times [2020-07-01 11:32:11,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:11,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899628689] [2020-07-01 11:32:11,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:11,523 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:11,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:11,523 INFO L82 PathProgramCache]: Analyzing trace with hash 15630830, now seen corresponding path program 1 times [2020-07-01 11:32:11,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:11,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411875761] [2020-07-01 11:32:11,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:11,549 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:11,587 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:11,587 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:11,587 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:11,587 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:11,587 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:32:11,588 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:11,588 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:11,588 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:11,588 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:32:11,588 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:11,588 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:11,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,661 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:11,661 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:11,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:11,664 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:11,667 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:11,668 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:11,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:11,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:11,703 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:11,703 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:11,735 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:11,735 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:11,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:32:11,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:11,809 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:32:11,810 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:11,810 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:11,811 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:11,811 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:11,811 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:32:11,811 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:11,811 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:11,811 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:11,811 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:32:11,811 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:11,812 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:11,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:11,889 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:11,889 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:11,891 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:11,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:11,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:11,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:11,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:11,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:11,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:11,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:11,896 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:11,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:11,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:11,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:11,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:11,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:11,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:11,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:11,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:11,932 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:11,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:11,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:11,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:11,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:11,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:11,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:11,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:11,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:11,970 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:32:11,973 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:32:11,973 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:11,975 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:32:11,976 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:32:11,976 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:32:11,976 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:32:12,005 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:32:12,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:12,023 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:32:12,024 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:12,030 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:32:12,030 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:12,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:32:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:12,066 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:32:12,067 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:12,099 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:32:12,099 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:12,112 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:32:12,112 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:12,115 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-07-01 11:32:12,115 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2020-07-01 11:32:12,115 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 23 states and 55 transitions. cyclomatic complexity: 35 Second operand 5 states. [2020-07-01 11:32:12,181 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 23 states and 55 transitions. cyclomatic complexity: 35. Second operand 5 states. Result 90 states and 190 transitions. Complement of second has 8 states. [2020-07-01 11:32:12,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 11:32:12,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:32:12,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-07-01 11:32:12,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 6 letters. [2020-07-01 11:32:12,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:12,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 11 letters. Loop has 6 letters. [2020-07-01 11:32:12,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:12,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 12 letters. [2020-07-01 11:32:12,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:12,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 190 transitions. [2020-07-01 11:32:12,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2020-07-01 11:32:12,189 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 65 states and 139 transitions. [2020-07-01 11:32:12,189 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-07-01 11:32:12,189 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-07-01 11:32:12,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 139 transitions. [2020-07-01 11:32:12,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:32:12,190 INFO L688 BuchiCegarLoop]: Abstraction has 65 states and 139 transitions. [2020-07-01 11:32:12,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 139 transitions. [2020-07-01 11:32:12,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 36. [2020-07-01 11:32:12,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-01 11:32:12,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 83 transitions. [2020-07-01 11:32:12,194 INFO L711 BuchiCegarLoop]: Abstraction has 36 states and 83 transitions. [2020-07-01 11:32:12,194 INFO L591 BuchiCegarLoop]: Abstraction has 36 states and 83 transitions. [2020-07-01 11:32:12,194 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 11:32:12,194 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 83 transitions. [2020-07-01 11:32:12,195 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2020-07-01 11:32:12,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:32:12,195 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:32:12,196 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:32:12,196 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-07-01 11:32:12,197 INFO L794 eck$LassoCheckResult]: Stem: 557#ULTIMATE.startENTRY [45] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_#t~post4] 558#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 559#L16-2 [67] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 552#L18-2 [71] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (> 0 |v_ULTIMATE.start_main_#t~nondet5_5|) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 553#L18-2 [68] L18-2-->L18-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet5_3|) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 568#L18-3 [2020-07-01 11:32:12,197 INFO L796 eck$LassoCheckResult]: Loop: 568#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 565#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 562#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 563#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 567#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 569#L18-2 [68] L18-2-->L18-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet5_3|) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 568#L18-3 [2020-07-01 11:32:12,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:12,197 INFO L82 PathProgramCache]: Analyzing trace with hash 71803384, now seen corresponding path program 1 times [2020-07-01 11:32:12,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:12,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954204436] [2020-07-01 11:32:12,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:12,210 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:12,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:12,210 INFO L82 PathProgramCache]: Analyzing trace with hash -2087044618, now seen corresponding path program 2 times [2020-07-01 11:32:12,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:12,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807918749] [2020-07-01 11:32:12,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:12,222 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:12,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:12,222 INFO L82 PathProgramCache]: Analyzing trace with hash -871872851, now seen corresponding path program 1 times [2020-07-01 11:32:12,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:12,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060463585] [2020-07-01 11:32:12,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:12,243 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:12,288 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:12,288 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:12,288 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:12,288 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:12,288 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:32:12,288 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:12,288 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:12,288 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:12,289 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:32:12,289 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:12,289 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:12,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:12,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:12,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:12,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:12,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:12,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:12,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:12,362 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:12,362 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:12,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:12,365 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:12,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:32:12,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:12,439 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:32:12,440 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:12,440 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:12,440 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:12,440 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:12,441 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:32:12,441 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:12,441 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:12,441 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:12,441 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:32:12,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:12,441 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:12,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:12,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:12,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:12,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:12,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:12,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:12,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:12,511 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:12,512 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:12,515 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:12,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:12,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:12,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:12,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:12,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:12,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:12,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:12,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:12,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:12,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:12,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:12,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:12,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:12,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:12,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:12,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:12,558 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:32:12,561 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:32:12,562 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:12,564 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:32:12,564 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:32:12,565 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:32:12,565 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:32:12,594 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:32:12,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:12,611 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:32:12,612 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:12,618 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:32:12,619 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:32:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:12,654 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:32:12,654 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:12,682 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:32:12,682 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:12,689 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:32:12,690 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:12,692 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 5 predicates after loop cannibalization [2020-07-01 11:32:12,693 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2020-07-01 11:32:12,693 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 36 states and 83 transitions. cyclomatic complexity: 49 Second operand 5 states. [2020-07-01 11:32:12,759 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 36 states and 83 transitions. cyclomatic complexity: 49. Second operand 5 states. Result 146 states and 312 transitions. Complement of second has 8 states. [2020-07-01 11:32:12,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 11:32:12,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:32:12,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-07-01 11:32:12,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 6 letters. [2020-07-01 11:32:12,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:12,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 11 letters. Loop has 6 letters. [2020-07-01 11:32:12,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:12,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 12 letters. [2020-07-01 11:32:12,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:12,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 312 transitions. [2020-07-01 11:32:12,766 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2020-07-01 11:32:12,768 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 105 states and 215 transitions. [2020-07-01 11:32:12,768 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-07-01 11:32:12,768 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-07-01 11:32:12,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 215 transitions. [2020-07-01 11:32:12,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:32:12,769 INFO L688 BuchiCegarLoop]: Abstraction has 105 states and 215 transitions. [2020-07-01 11:32:12,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 215 transitions. [2020-07-01 11:32:12,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 28. [2020-07-01 11:32:12,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-01 11:32:12,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 65 transitions. [2020-07-01 11:32:12,773 INFO L711 BuchiCegarLoop]: Abstraction has 28 states and 65 transitions. [2020-07-01 11:32:12,773 INFO L591 BuchiCegarLoop]: Abstraction has 28 states and 65 transitions. [2020-07-01 11:32:12,773 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 11:32:12,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 65 transitions. [2020-07-01 11:32:12,774 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2020-07-01 11:32:12,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:32:12,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:32:12,775 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:32:12,775 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-01 11:32:12,775 INFO L794 eck$LassoCheckResult]: Stem: 847#ULTIMATE.startENTRY [45] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_#t~post4] 848#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 849#L16-2 [67] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 842#L18-2 [71] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (> 0 |v_ULTIMATE.start_main_#t~nondet5_5|) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 844#L18-2 [69] L18-2-->L18-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 3) v_ULTIMATE.start_main_~y~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 838#L18-3 [2020-07-01 11:32:12,775 INFO L796 eck$LassoCheckResult]: Loop: 838#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 839#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 852#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 850#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 851#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 863#L18-2 [70] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet5_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 844#L18-2 [68] L18-2-->L18-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet5_3|) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 838#L18-3 [2020-07-01 11:32:12,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:12,776 INFO L82 PathProgramCache]: Analyzing trace with hash 71803385, now seen corresponding path program 2 times [2020-07-01 11:32:12,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:12,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675893377] [2020-07-01 11:32:12,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:12,790 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:12,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:12,790 INFO L82 PathProgramCache]: Analyzing trace with hash -273873588, now seen corresponding path program 1 times [2020-07-01 11:32:12,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:12,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729373132] [2020-07-01 11:32:12,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:12,803 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:12,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:12,803 INFO L82 PathProgramCache]: Analyzing trace with hash 484555860, now seen corresponding path program 1 times [2020-07-01 11:32:12,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:12,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077997493] [2020-07-01 11:32:12,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:12,866 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-01 11:32:12,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077997493] [2020-07-01 11:32:12,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878550535] [2020-07-01 11:32:12,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 11:32:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:12,901 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:32:12,902 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:12,913 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-01 11:32:12,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 11:32:12,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-07-01 11:32:12,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816111562] [2020-07-01 11:32:13,014 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:13,014 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:13,014 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:13,014 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:13,014 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:32:13,014 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:13,015 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:13,015 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:13,015 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2020-07-01 11:32:13,015 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:13,015 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:13,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,118 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:13,118 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:13,140 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:13,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:13,144 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:13,144 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:13,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:13,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:13,180 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:13,180 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:13,211 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:13,211 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:13,214 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:13,214 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:13,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:13,246 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:13,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:32:13,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:13,372 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:32:13,374 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:13,374 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:13,374 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:13,374 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:13,374 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:32:13,374 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:13,374 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:13,374 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:13,374 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2020-07-01 11:32:13,375 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:13,375 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:13,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:13,444 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:13,445 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:13,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:13,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:13,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:13,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:13,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:13,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:13,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:13,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:13,452 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:13,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:13,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:13,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:13,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:13,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:13,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:13,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:13,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:13,488 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:13,520 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:13,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:13,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:13,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:13,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:13,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:13,523 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:13,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:13,525 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:13,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:13,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:13,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:13,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:13,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:13,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:13,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:13,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:13,563 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:32:13,567 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:32:13,567 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:13,570 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:32:13,570 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:32:13,570 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:32:13,570 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 11:32:13,599 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:32:13,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:13,617 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:32:13,617 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:13,624 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:32:13,625 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:13,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:32:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:13,753 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:32:13,753 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:13,868 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-01 11:32:13,869 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:13,984 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:32:13,985 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:14,044 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:32:14,045 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:14,049 INFO L98 LoopCannibalizer]: 9 predicates before loop cannibalization 18 predicates after loop cannibalization [2020-07-01 11:32:14,050 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 18 loop predicates [2020-07-01 11:32:14,050 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 28 states and 65 transitions. cyclomatic complexity: 39 Second operand 7 states. [2020-07-01 11:32:14,776 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 28 states and 65 transitions. cyclomatic complexity: 39. Second operand 7 states. Result 1799 states and 3457 transitions. Complement of second has 201 states. [2020-07-01 11:32:14,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 18 states 1 stem states 16 non-accepting loop states 1 accepting loop states [2020-07-01 11:32:14,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:32:14,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 93 transitions. [2020-07-01 11:32:14,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 93 transitions. Stem has 5 letters. Loop has 7 letters. [2020-07-01 11:32:14,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:14,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 93 transitions. Stem has 12 letters. Loop has 7 letters. [2020-07-01 11:32:14,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:14,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 93 transitions. Stem has 5 letters. Loop has 14 letters. [2020-07-01 11:32:14,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:14,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1799 states and 3457 transitions. [2020-07-01 11:32:14,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 510 [2020-07-01 11:32:14,814 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1799 states to 656 states and 1276 transitions. [2020-07-01 11:32:14,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2020-07-01 11:32:14,815 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-07-01 11:32:14,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 656 states and 1276 transitions. [2020-07-01 11:32:14,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:32:14,815 INFO L688 BuchiCegarLoop]: Abstraction has 656 states and 1276 transitions. [2020-07-01 11:32:14,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states and 1276 transitions. [2020-07-01 11:32:14,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 142. [2020-07-01 11:32:14,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-07-01 11:32:14,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 363 transitions. [2020-07-01 11:32:14,831 INFO L711 BuchiCegarLoop]: Abstraction has 142 states and 363 transitions. [2020-07-01 11:32:14,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:32:14,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 11:32:14,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-01 11:32:14,836 INFO L87 Difference]: Start difference. First operand 142 states and 363 transitions. Second operand 5 states. [2020-07-01 11:32:14,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:32:14,911 INFO L93 Difference]: Finished difference Result 248 states and 557 transitions. [2020-07-01 11:32:14,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-01 11:32:14,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 248 states and 557 transitions. [2020-07-01 11:32:14,917 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 159 [2020-07-01 11:32:14,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 248 states to 229 states and 491 transitions. [2020-07-01 11:32:14,920 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-07-01 11:32:14,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-07-01 11:32:14,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 229 states and 491 transitions. [2020-07-01 11:32:14,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:32:14,921 INFO L688 BuchiCegarLoop]: Abstraction has 229 states and 491 transitions. [2020-07-01 11:32:14,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states and 491 transitions. [2020-07-01 11:32:14,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 188. [2020-07-01 11:32:14,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-01 11:32:14,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 428 transitions. [2020-07-01 11:32:14,930 INFO L711 BuchiCegarLoop]: Abstraction has 188 states and 428 transitions. [2020-07-01 11:32:14,930 INFO L591 BuchiCegarLoop]: Abstraction has 188 states and 428 transitions. [2020-07-01 11:32:14,931 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2020-07-01 11:32:14,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states and 428 transitions. [2020-07-01 11:32:14,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 133 [2020-07-01 11:32:14,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:32:14,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:32:14,933 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:32:14,933 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-01 11:32:14,934 INFO L794 eck$LassoCheckResult]: Stem: 3465#ULTIMATE.startENTRY [45] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_#t~post4] 3466#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 3472#L16-2 [67] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 3514#L18-2 [71] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (> 0 |v_ULTIMATE.start_main_#t~nondet5_5|) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 3516#L18-2 [68] L18-2-->L18-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet5_3|) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 3557#L18-3 [2020-07-01 11:32:14,934 INFO L796 eck$LassoCheckResult]: Loop: 3557#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 3558#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 3567#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3570#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 3566#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 3564#L18-2 [70] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet5_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 3516#L18-2 [68] L18-2-->L18-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet5_3|) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 3557#L18-3 [2020-07-01 11:32:14,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:14,934 INFO L82 PathProgramCache]: Analyzing trace with hash 71803384, now seen corresponding path program 2 times [2020-07-01 11:32:14,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:14,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890080889] [2020-07-01 11:32:14,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:14,945 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:14,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:14,946 INFO L82 PathProgramCache]: Analyzing trace with hash -273873588, now seen corresponding path program 2 times [2020-07-01 11:32:14,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:14,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103058889] [2020-07-01 11:32:14,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:14,957 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:14,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:14,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1258254475, now seen corresponding path program 1 times [2020-07-01 11:32:14,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:14,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601452377] [2020-07-01 11:32:14,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:14,975 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:15,066 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:15,066 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:15,067 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:15,067 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:15,067 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:32:15,067 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:15,067 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:15,067 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:15,067 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Loop [2020-07-01 11:32:15,067 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:15,067 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:15,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,158 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:15,158 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:15,161 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:15,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:15,165 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:15,166 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:15,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:15,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:15,202 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:15,202 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8=0} Honda state: {ULTIMATE.start_main_#t~post8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:15,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:15,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:15,249 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:15,249 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=1} Honda state: {ULTIMATE.start_main_#t~nondet5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:15,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:15,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:15,302 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:15,302 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:15,333 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:15,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:15,337 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:15,337 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:15,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:15,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:15,373 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:15,373 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:15,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:15,404 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:15,438 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:32:15,438 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:15,529 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:32:15,531 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:15,531 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:15,531 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:15,531 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:15,531 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:32:15,532 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:15,532 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:15,532 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:15,532 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Loop [2020-07-01 11:32:15,532 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:15,532 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:15,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:15,599 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:15,599 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:15,602 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:15,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:15,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:15,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:15,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:15,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:15,605 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:15,605 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:15,606 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:15,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:15,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:15,639 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:15,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:15,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:15,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:15,640 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:15,640 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:15,642 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:15,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:15,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:15,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:15,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:15,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:15,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:15,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:15,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:15,678 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:15,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:15,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:15,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:15,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:15,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:15,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:15,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:15,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:15,714 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:15,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:15,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:15,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:15,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:15,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:15,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:15,748 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:15,748 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:15,750 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:15,781 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:15,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:15,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:15,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:15,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:15,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:15,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:15,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:15,788 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:32:15,791 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:32:15,791 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:15,793 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:32:15,793 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:32:15,793 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:32:15,794 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 11:32:15,823 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:32:15,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:15,839 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:32:15,840 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:15,846 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:32:15,847 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:15,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:32:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:15,986 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:32:15,987 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:16,083 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-01 11:32:16,084 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:16,196 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:32:16,197 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:16,257 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:32:16,257 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:16,261 INFO L98 LoopCannibalizer]: 9 predicates before loop cannibalization 18 predicates after loop cannibalization [2020-07-01 11:32:16,262 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 18 loop predicates [2020-07-01 11:32:16,262 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 188 states and 428 transitions. cyclomatic complexity: 242 Second operand 7 states. [2020-07-01 11:32:17,119 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 188 states and 428 transitions. cyclomatic complexity: 242. Second operand 7 states. Result 5731 states and 11169 transitions. Complement of second has 201 states. [2020-07-01 11:32:17,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 18 states 1 stem states 16 non-accepting loop states 1 accepting loop states [2020-07-01 11:32:17,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:32:17,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 93 transitions. [2020-07-01 11:32:17,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 93 transitions. Stem has 5 letters. Loop has 7 letters. [2020-07-01 11:32:17,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:17,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 93 transitions. Stem has 12 letters. Loop has 7 letters. [2020-07-01 11:32:17,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:17,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 93 transitions. Stem has 5 letters. Loop has 14 letters. [2020-07-01 11:32:17,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:17,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5731 states and 11169 transitions. [2020-07-01 11:32:17,198 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1582 [2020-07-01 11:32:17,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5731 states to 1933 states and 3780 transitions. [2020-07-01 11:32:17,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2020-07-01 11:32:17,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2020-07-01 11:32:17,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1933 states and 3780 transitions. [2020-07-01 11:32:17,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:32:17,219 INFO L688 BuchiCegarLoop]: Abstraction has 1933 states and 3780 transitions. [2020-07-01 11:32:17,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states and 3780 transitions. [2020-07-01 11:32:17,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 346. [2020-07-01 11:32:17,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-07-01 11:32:17,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 842 transitions. [2020-07-01 11:32:17,245 INFO L711 BuchiCegarLoop]: Abstraction has 346 states and 842 transitions. [2020-07-01 11:32:17,245 INFO L591 BuchiCegarLoop]: Abstraction has 346 states and 842 transitions. [2020-07-01 11:32:17,245 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2020-07-01 11:32:17,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 346 states and 842 transitions. [2020-07-01 11:32:17,248 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 267 [2020-07-01 11:32:17,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:32:17,248 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:32:17,249 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:32:17,249 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 2, 2, 2] [2020-07-01 11:32:17,250 INFO L794 eck$LassoCheckResult]: Stem: 9759#ULTIMATE.startENTRY [45] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_#t~post4] 9760#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 9761#L16-2 [67] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 9804#L18-2 [71] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (> 0 |v_ULTIMATE.start_main_#t~nondet5_5|) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 9805#L18-2 [68] L18-2-->L18-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet5_3|) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 9851#L18-3 [2020-07-01 11:32:17,250 INFO L796 eck$LassoCheckResult]: Loop: 9851#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 10006#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 9942#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 10003#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 10021#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 10019#L18-2 [70] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet5_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 10018#L18-2 [70] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet5_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 9755#L18-2 [68] L18-2-->L18-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet5_3|) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 10051#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 10049#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 10042#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 10043#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 10013#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 9818#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 9815#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 9816#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 9873#L18-2 [70] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet5_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 9850#L18-2 [68] L18-2-->L18-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet5_3|) InVars {ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 9851#L18-3 [2020-07-01 11:32:17,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:17,251 INFO L82 PathProgramCache]: Analyzing trace with hash 71803384, now seen corresponding path program 3 times [2020-07-01 11:32:17,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:17,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782336258] [2020-07-01 11:32:17,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:17,261 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:17,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:17,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1918572694, now seen corresponding path program 3 times [2020-07-01 11:32:17,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:17,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502060823] [2020-07-01 11:32:17,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:17,283 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:17,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:17,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1158322593, now seen corresponding path program 2 times [2020-07-01 11:32:17,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:17,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946962469] [2020-07-01 11:32:17,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:17,314 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:17,596 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 99 [2020-07-01 11:32:17,615 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:17,615 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:17,615 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:17,615 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:17,615 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:32:17,616 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:17,616 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:17,616 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:17,616 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration8_Loop [2020-07-01 11:32:17,616 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:17,616 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:17,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:17,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:17,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:17,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:17,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:17,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:17,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:17,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:17,682 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:17,683 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:17,686 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:17,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:17,690 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:17,690 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8=0} Honda state: {ULTIMATE.start_main_#t~post8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:17,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:17,721 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:17,755 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:32:17,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:18,055 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:32:18,057 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:18,057 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:18,057 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:18,057 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:18,057 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:32:18,058 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:18,058 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:18,058 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:18,058 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration8_Loop [2020-07-01 11:32:18,058 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:18,058 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:18,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:18,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:18,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:18,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:18,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:18,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:18,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:18,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:18,130 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:18,130 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:18,132 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:18,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:18,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:18,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:18,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:18,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:18,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:18,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:18,137 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:18,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:18,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:18,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:18,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:18,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:18,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:18,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:18,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:18,172 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:18,203 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:18,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:18,205 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:18,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:18,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:18,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:18,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:18,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:18,210 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:32:18,214 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:32:18,214 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:18,216 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:32:18,216 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:32:18,216 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:32:18,217 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 11:32:18,246 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:32:18,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:18,262 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:32:18,263 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:18,276 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-01 11:32:18,277 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:18,427 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:32:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:18,521 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-01 11:32:18,522 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:18,766 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-01 11:32:18,768 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:18,962 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-01 11:32:18,963 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:19,077 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-01 11:32:19,078 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:19,146 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-01 11:32:19,147 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:19,327 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-01 11:32:19,328 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:19,481 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-01 11:32:19,482 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:19,598 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-01 11:32:19,599 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:19,828 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-01 11:32:19,829 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:20,084 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-01 11:32:20,085 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:20,298 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-01 11:32:20,311 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:20,548 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-01 11:32:20,549 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:20,555 INFO L98 LoopCannibalizer]: 17 predicates before loop cannibalization 51 predicates after loop cannibalization [2020-07-01 11:32:20,556 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 51 loop predicates [2020-07-01 11:32:20,556 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 346 states and 842 transitions. cyclomatic complexity: 500 Second operand 15 states. [2020-07-01 11:32:40,520 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 346 states and 842 transitions. cyclomatic complexity: 500. Second operand 15 states. Result 584368 states and 972540 transitions. Complement of second has 26939 states. [2020-07-01 11:32:40,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 60 states 1 stem states 58 non-accepting loop states 1 accepting loop states [2020-07-01 11:32:40,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-01 11:32:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 250 transitions. [2020-07-01 11:32:40,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 60 states and 250 transitions. Stem has 5 letters. Loop has 18 letters. [2020-07-01 11:32:40,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:40,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 60 states and 250 transitions. Stem has 23 letters. Loop has 18 letters. [2020-07-01 11:32:40,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:40,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 60 states and 250 transitions. Stem has 5 letters. Loop has 36 letters. [2020-07-01 11:32:40,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:32:40,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 584368 states and 972540 transitions. [2020-07-01 11:32:43,289 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 46 [2020-07-01 11:32:43,291 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 584368 states to 75 states and 154 transitions. [2020-07-01 11:32:43,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 11:32:43,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-07-01 11:32:43,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 75 states and 154 transitions. [2020-07-01 11:32:43,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:32:43,292 INFO L688 BuchiCegarLoop]: Abstraction has 75 states and 154 transitions. [2020-07-01 11:32:43,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states and 154 transitions. [2020-07-01 11:32:43,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 67. [2020-07-01 11:32:43,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-07-01 11:32:43,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 138 transitions. [2020-07-01 11:32:43,295 INFO L711 BuchiCegarLoop]: Abstraction has 67 states and 138 transitions. [2020-07-01 11:32:43,295 INFO L591 BuchiCegarLoop]: Abstraction has 67 states and 138 transitions. [2020-07-01 11:32:43,295 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2020-07-01 11:32:43,295 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 67 states and 138 transitions. [2020-07-01 11:32:43,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 42 [2020-07-01 11:32:43,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:32:43,296 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:32:43,296 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:32:43,296 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 4, 3, 2, 2, 2] [2020-07-01 11:32:43,297 INFO L794 eck$LassoCheckResult]: Stem: 622265#ULTIMATE.startENTRY [45] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_#t~post4] 622266#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622267#L16-2 [67] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 622280#L18-2 [71] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (> 0 |v_ULTIMATE.start_main_#t~nondet5_5|) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 622296#L18-2 [69] L18-2-->L18-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 3) v_ULTIMATE.start_main_~y~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 622258#L18-3 [2020-07-01 11:32:43,297 INFO L796 eck$LassoCheckResult]: Loop: 622258#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 622259#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 622310#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 622268#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622269#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 622270#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 622271#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622315#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 622264#L18-2 [70] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet5_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 622263#L18-2 [70] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet5_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 622324#L18-2 [69] L18-2-->L18-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 3) v_ULTIMATE.start_main_~y~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 622322#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 622308#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 622321#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 622320#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622318#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 622298#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 622302#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622297#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 622293#L18-2 [70] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet5_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 622294#L18-2 [69] L18-2-->L18-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 3) v_ULTIMATE.start_main_~y~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 622258#L18-3 [2020-07-01 11:32:43,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:43,298 INFO L82 PathProgramCache]: Analyzing trace with hash 71803385, now seen corresponding path program 3 times [2020-07-01 11:32:43,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:43,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811655267] [2020-07-01 11:32:43,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:43,310 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:43,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:43,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1493562653, now seen corresponding path program 1 times [2020-07-01 11:32:43,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:43,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474382834] [2020-07-01 11:32:43,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:43,355 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 25 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-01 11:32:43,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474382834] [2020-07-01 11:32:43,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522816208] [2020-07-01 11:32:43,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 11:32:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:43,539 INFO L264 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-01 11:32:43,540 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:43,548 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 25 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-01 11:32:43,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 11:32:43,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2020-07-01 11:32:43,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406478451] [2020-07-01 11:32:43,550 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 11:32:43,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:32:43,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-01 11:32:43,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-01 11:32:43,550 INFO L87 Difference]: Start difference. First operand 67 states and 138 transitions. cyclomatic complexity: 75 Second operand 7 states. [2020-07-01 11:32:43,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:32:43,622 INFO L93 Difference]: Finished difference Result 104 states and 197 transitions. [2020-07-01 11:32:43,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-01 11:32:43,625 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 197 transitions. [2020-07-01 11:32:43,625 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2020-07-01 11:32:43,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 100 states and 189 transitions. [2020-07-01 11:32:43,627 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-07-01 11:32:43,627 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-07-01 11:32:43,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 100 states and 189 transitions. [2020-07-01 11:32:43,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:32:43,627 INFO L688 BuchiCegarLoop]: Abstraction has 100 states and 189 transitions. [2020-07-01 11:32:43,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states and 189 transitions. [2020-07-01 11:32:43,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 79. [2020-07-01 11:32:43,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-07-01 11:32:43,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 162 transitions. [2020-07-01 11:32:43,629 INFO L711 BuchiCegarLoop]: Abstraction has 79 states and 162 transitions. [2020-07-01 11:32:43,629 INFO L591 BuchiCegarLoop]: Abstraction has 79 states and 162 transitions. [2020-07-01 11:32:43,629 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2020-07-01 11:32:43,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 162 transitions. [2020-07-01 11:32:43,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 48 [2020-07-01 11:32:43,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:32:43,630 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:32:43,631 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:32:43,631 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 4, 4, 4, 4, 1] [2020-07-01 11:32:43,631 INFO L794 eck$LassoCheckResult]: Stem: 622503#ULTIMATE.startENTRY [45] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_#t~post4] 622504#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622509#L16-2 [67] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 622517#L18-2 [71] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (> 0 |v_ULTIMATE.start_main_#t~nondet5_5|) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 622544#L18-2 [69] L18-2-->L18-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 3) v_ULTIMATE.start_main_~y~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 622499#L18-3 [2020-07-01 11:32:43,632 INFO L796 eck$LassoCheckResult]: Loop: 622499#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 622500#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 622512#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 622510#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622511#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 622565#L18-2 [69] L18-2-->L18-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 3) v_ULTIMATE.start_main_~y~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 622568#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 622513#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 622507#L18-2 [69] L18-2-->L18-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 3) v_ULTIMATE.start_main_~y~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 622501#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 622502#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 622563#L18-2 [69] L18-2-->L18-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 3) v_ULTIMATE.start_main_~y~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 622561#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 622560#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 622558#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 622559#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622555#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 622554#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 622553#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622552#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 622546#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 622549#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622545#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 622542#L18-2 [70] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet5_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 622543#L18-2 [69] L18-2-->L18-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 3) v_ULTIMATE.start_main_~y~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 622499#L18-3 [2020-07-01 11:32:43,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:43,632 INFO L82 PathProgramCache]: Analyzing trace with hash 71803385, now seen corresponding path program 4 times [2020-07-01 11:32:43,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:43,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215695119] [2020-07-01 11:32:43,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:43,641 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:43,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:43,641 INFO L82 PathProgramCache]: Analyzing trace with hash -871761385, now seen corresponding path program 2 times [2020-07-01 11:32:43,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:43,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375217934] [2020-07-01 11:32:43,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:43,675 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-01 11:32:43,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375217934] [2020-07-01 11:32:43,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:32:43,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-01 11:32:43,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735835931] [2020-07-01 11:32:43,677 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-01 11:32:43,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:32:43,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-01 11:32:43,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-07-01 11:32:43,677 INFO L87 Difference]: Start difference. First operand 79 states and 162 transitions. cyclomatic complexity: 87 Second operand 6 states. [2020-07-01 11:32:43,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:32:43,726 INFO L93 Difference]: Finished difference Result 108 states and 194 transitions. [2020-07-01 11:32:43,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-01 11:32:43,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 194 transitions. [2020-07-01 11:32:43,729 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 63 [2020-07-01 11:32:43,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 100 states and 184 transitions. [2020-07-01 11:32:43,731 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-07-01 11:32:43,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-07-01 11:32:43,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 100 states and 184 transitions. [2020-07-01 11:32:43,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:32:43,731 INFO L688 BuchiCegarLoop]: Abstraction has 100 states and 184 transitions. [2020-07-01 11:32:43,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states and 184 transitions. [2020-07-01 11:32:43,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 82. [2020-07-01 11:32:43,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-07-01 11:32:43,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 162 transitions. [2020-07-01 11:32:43,733 INFO L711 BuchiCegarLoop]: Abstraction has 82 states and 162 transitions. [2020-07-01 11:32:43,733 INFO L591 BuchiCegarLoop]: Abstraction has 82 states and 162 transitions. [2020-07-01 11:32:43,733 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2020-07-01 11:32:43,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 162 transitions. [2020-07-01 11:32:43,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2020-07-01 11:32:43,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:32:43,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:32:43,734 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-01 11:32:43,735 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [6, 6, 6, 3, 2, 2, 2] [2020-07-01 11:32:43,735 INFO L794 eck$LassoCheckResult]: Stem: 622701#ULTIMATE.startENTRY [45] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~y~0_3 |v_ULTIMATE.start_main_#t~nondet1_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_1|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_1|, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_3} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_#t~post7, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6, ULTIMATE.start_main_#t~post4] 622702#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622703#L16-2 [67] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet3_5|) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 622717#L18-2 [71] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (> 0 |v_ULTIMATE.start_main_#t~nondet5_5|) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 622712#L18-2 [69] L18-2-->L18-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 3) v_ULTIMATE.start_main_~y~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 622714#L18-3 [2020-07-01 11:32:43,735 INFO L796 eck$LassoCheckResult]: Loop: 622714#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 622753#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 622706#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 622707#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622759#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 622760#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 622704#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622705#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 622767#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 622768#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622766#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 622763#L18-2 [70] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet5_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 622699#L18-2 [70] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet5_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 622776#L18-2 [69] L18-2-->L18-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 3) v_ULTIMATE.start_main_~y~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 622697#L18-3 [44] L18-3-->L16-2: Formula: (= v_ULTIMATE.start_main_~y~0_2 (+ v_ULTIMATE.start_main_~y~0_1 1)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_2} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~post7=|v_ULTIMATE.start_main_#t~post7_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post7] 622696#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 622710#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 622736#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622737#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 622731#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 622729#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622727#L16-2 [64] L16-2-->L16-3: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_3|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 622719#L16-3 [53] L16-3-->L14-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_4 1) v_ULTIMATE.start_main_~x~0_5) (= v_ULTIMATE.start_main_~y~0_6 (+ (* v_ULTIMATE.start_main_~x~0_4 (- 1)) v_ULTIMATE.start_main_~y~0_7))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_#t~post8=|v_ULTIMATE.start_main_#t~post8_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post8, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 622725#L14-2 [52] L14-2-->L16-2: Formula: (and (<= 2 v_ULTIMATE.start_main_~x~0_8) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_7)) (= (+ v_ULTIMATE.start_main_~x~0_7 1) v_ULTIMATE.start_main_~x~0_8)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~0] 622718#L16-2 [66] L16-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_10 1) v_ULTIMATE.start_main_~y~0_12) (= v_ULTIMATE.start_main_~y~0_12 (+ v_ULTIMATE.start_main_~y~0_11 1)) (> 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|, ULTIMATE.start_main_#t~post4=|v_ULTIMATE.start_main_#t~post4_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~post4] 622715#L18-2 [70] L18-2-->L18-2: Formula: (and (<= (+ v_ULTIMATE.start_main_~x~0_13 3) v_ULTIMATE.start_main_~y~0_15) (= v_ULTIMATE.start_main_~y~0_14 (+ v_ULTIMATE.start_main_~y~0_15 (- 2))) (= (+ v_ULTIMATE.start_main_~x~0_13 1) v_ULTIMATE.start_main_~x~0_12) (< 0 |v_ULTIMATE.start_main_#t~nondet5_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_15, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_14, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12, ULTIMATE.start_main_#t~post6=|v_ULTIMATE.start_main_#t~post6_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~post6] 622716#L18-2 [69] L18-2-->L18-3: Formula: (> (+ v_ULTIMATE.start_main_~x~0_11 3) v_ULTIMATE.start_main_~y~0_13) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_13, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet5] 622714#L18-3 [2020-07-01 11:32:43,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:43,736 INFO L82 PathProgramCache]: Analyzing trace with hash 71803385, now seen corresponding path program 5 times [2020-07-01 11:32:43,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:43,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298642627] [2020-07-01 11:32:43,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:43,744 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:43,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:43,745 INFO L82 PathProgramCache]: Analyzing trace with hash 977909527, now seen corresponding path program 3 times [2020-07-01 11:32:43,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:43,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941147484] [2020-07-01 11:32:43,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:32:43,767 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:32:43,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:43,767 INFO L82 PathProgramCache]: Analyzing trace with hash -2117821921, now seen corresponding path program 1 times [2020-07-01 11:32:43,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:32:43,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293672227] [2020-07-01 11:32:43,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:32:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:43,838 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 66 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-01 11:32:43,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293672227] [2020-07-01 11:32:43,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851955094] [2020-07-01 11:32:43,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 11:32:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:43,871 INFO L264 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-01 11:32:43,872 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:43,883 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 66 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-01 11:32:43,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 11:32:43,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2020-07-01 11:32:43,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012229807] [2020-07-01 11:32:44,278 WARN L192 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 142 [2020-07-01 11:32:44,300 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:44,300 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:44,300 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:44,300 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:44,300 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:32:44,301 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:44,301 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:44,301 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:44,301 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration11_Loop [2020-07-01 11:32:44,301 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:44,301 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:44,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:44,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:44,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:44,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:44,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:44,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:44,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:44,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:44,380 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:44,381 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:44,385 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:44,385 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:44,388 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:44,388 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:44,420 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:44,420 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:44,423 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:44,423 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8=0} Honda state: {ULTIMATE.start_main_#t~post8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:44,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:44,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:44,458 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:32:44,459 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=1} Honda state: {ULTIMATE.start_main_#t~nondet5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:44,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:32:44,490 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:32:44,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:32:44,524 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:32:45,032 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:32:45,034 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:32:45,034 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:32:45,034 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:32:45,035 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:32:45,035 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:32:45,035 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:45,035 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:32:45,035 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:32:45,035 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration11_Loop [2020-07-01 11:32:45,035 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:32:45,035 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:32:45,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:45,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:45,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:45,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:45,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:45,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:45,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:45,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:32:45,113 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:32:45,114 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:45,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:45,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:45,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:45,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:45,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:45,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:45,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:45,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:45,121 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:45,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:45,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:45,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:45,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:45,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:45,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:45,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:45,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:45,156 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:45,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:45,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:45,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:45,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:45,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:45,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:45,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:45,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:45,191 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:45,222 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:32:45,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:32:45,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:32:45,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:32:45,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:32:45,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:32:45,226 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:32:45,226 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:32:45,229 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:32:45,233 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:32:45,233 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:32:45,235 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:32:45,235 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:32:45,236 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:32:45,236 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 11:32:45,265 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:32:45,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:32:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:45,282 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:32:45,282 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:45,299 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-01 11:32:45,300 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:45,559 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 68 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:32:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:45,685 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-01 11:32:45,686 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:46,006 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-01 11:32:46,007 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:46,294 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-01 11:32:46,295 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:46,583 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 32 conjunts are in the unsatisfiable core [2020-07-01 11:32:46,584 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:46,873 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-01 11:32:46,874 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:47,292 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 33 conjunts are in the unsatisfiable core [2020-07-01 11:32:47,293 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:47,651 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 33 conjunts are in the unsatisfiable core [2020-07-01 11:32:47,652 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:48,063 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 26 conjunts are in the unsatisfiable core [2020-07-01 11:32:48,064 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:48,501 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 26 conjunts are in the unsatisfiable core [2020-07-01 11:32:48,502 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:48,670 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-01 11:32:48,671 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:48,739 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-01 11:32:48,740 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:48,804 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-01 11:32:48,804 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:48,856 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-01 11:32:48,857 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:48,906 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-01 11:32:48,907 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:48,960 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-01 11:32:48,961 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:49,010 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-01 11:32:49,011 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:49,062 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-01 11:32:49,063 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:49,122 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-01 11:32:49,123 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:32:49,189 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-01 11:32:49,190 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:32:49,237 INFO L98 LoopCannibalizer]: 23 predicates before loop cannibalization 73 predicates after loop cannibalization [2020-07-01 11:32:49,237 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 73 loop predicates [2020-07-01 11:32:49,237 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 82 states and 162 transitions. cyclomatic complexity: 84 Second operand 21 states. [2020-07-01 11:33:44,900 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 82 states and 162 transitions. cyclomatic complexity: 84. Second operand 21 states. Result 11407 states and 16253 transitions. Complement of second has 5430 states. [2020-07-01 11:33:44,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 245 states 1 stem states 238 non-accepting loop states 5 accepting loop states [2020-07-01 11:33:44,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-01 11:33:44,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 693 transitions. [2020-07-01 11:33:44,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 245 states and 693 transitions. Stem has 5 letters. Loop has 27 letters. [2020-07-01 11:33:44,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:33:44,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 245 states and 693 transitions. Stem has 32 letters. Loop has 27 letters. [2020-07-01 11:33:44,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:33:44,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 245 states and 693 transitions. Stem has 5 letters. Loop has 54 letters. [2020-07-01 11:33:44,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:33:44,912 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11407 states and 16253 transitions. [2020-07-01 11:33:44,950 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:33:44,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11407 states to 0 states and 0 transitions. [2020-07-01 11:33:44,951 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:33:44,951 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:33:44,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:33:44,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:33:44,951 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:33:44,951 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:33:44,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:33:44,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-01 11:33:44,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-07-01 11:33:44,952 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 10 states. [2020-07-01 11:33:44,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:33:44,952 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-01 11:33:44,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-01 11:33:44,958 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-07-01 11:33:44,959 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:33:44,959 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-07-01 11:33:44,959 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:33:44,959 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:33:44,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:33:44,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:33:44,959 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:33:44,959 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:33:44,959 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:33:44,960 INFO L424 BuchiCegarLoop]: ======== Iteration 12============ [2020-07-01 11:33:44,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:33:44,960 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:33:44,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:33:44,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:33:44 BasicIcfg [2020-07-01 11:33:44,967 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:33:44,969 INFO L168 Benchmark]: Toolchain (without parser) took 97332.74 ms. Allocated memory was 649.6 MB in the beginning and 4.8 GB in the end (delta: 4.1 GB). Free memory was 555.7 MB in the beginning and 3.2 GB in the end (delta: -2.6 GB). Peak memory consumption was 1.5 GB. Max. memory is 50.3 GB. [2020-07-01 11:33:44,969 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 577.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:33:44,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.26 ms. Allocated memory was 649.6 MB in the beginning and 671.1 MB in the end (delta: 21.5 MB). Free memory was 555.7 MB in the beginning and 634.7 MB in the end (delta: -79.0 MB). Peak memory consumption was 28.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:33:44,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.82 ms. Allocated memory is still 671.1 MB. Free memory was 634.7 MB in the beginning and 633.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:33:44,970 INFO L168 Benchmark]: Boogie Preprocessor took 21.29 ms. Allocated memory is still 671.1 MB. Free memory was 633.6 MB in the beginning and 631.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:33:44,971 INFO L168 Benchmark]: RCFGBuilder took 254.08 ms. Allocated memory is still 671.1 MB. Free memory was 631.5 MB in the beginning and 615.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:33:44,971 INFO L168 Benchmark]: BlockEncodingV2 took 79.38 ms. Allocated memory is still 671.1 MB. Free memory was 615.8 MB in the beginning and 610.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:33:44,971 INFO L168 Benchmark]: TraceAbstraction took 158.12 ms. Allocated memory is still 671.1 MB. Free memory was 609.4 MB in the beginning and 600.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:33:44,972 INFO L168 Benchmark]: BuchiAutomizer took 96473.74 ms. Allocated memory was 671.1 MB in the beginning and 4.8 GB in the end (delta: 4.1 GB). Free memory was 600.7 MB in the beginning and 3.2 GB in the end (delta: -2.6 GB). Peak memory consumption was 1.5 GB. Max. memory is 50.3 GB. [2020-07-01 11:33:44,974 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 15 edges - StatisticsResult: Encoded RCFG 6 locations, 12 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 577.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 303.26 ms. Allocated memory was 649.6 MB in the beginning and 671.1 MB in the end (delta: 21.5 MB). Free memory was 555.7 MB in the beginning and 634.7 MB in the end (delta: -79.0 MB). Peak memory consumption was 28.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 36.82 ms. Allocated memory is still 671.1 MB. Free memory was 634.7 MB in the beginning and 633.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 21.29 ms. Allocated memory is still 671.1 MB. Free memory was 633.6 MB in the beginning and 631.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * RCFGBuilder took 254.08 ms. Allocated memory is still 671.1 MB. Free memory was 631.5 MB in the beginning and 615.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 79.38 ms. Allocated memory is still 671.1 MB. Free memory was 615.8 MB in the beginning and 610.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 158.12 ms. Allocated memory is still 671.1 MB. Free memory was 609.4 MB in the beginning and 600.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 96473.74 ms. Allocated memory was 671.1 MB in the beginning and 4.8 GB in the end (delta: 4.1 GB). Free memory was 600.7 MB in the beginning and 3.2 GB in the end (delta: -2.6 GB). Peak memory consumption was 1.5 GB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 3 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (4 trivial, 0 deterministic, 9 nondeterministic). One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y + -1 * x and consists of 4 locations. One nondeterministic module has affine ranking function -1 * x + y and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 18 locations. One nondeterministic module has affine ranking function y and consists of 18 locations. One nondeterministic module has affine ranking function y and consists of 60 locations. One nondeterministic module has affine ranking function y and consists of 245 locations. 4 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 96.4s and 12 iterations. TraceHistogramMax:6. Analysis of lassos took 7.8s. Construction of modules took 3.8s. Büchi inclusion checks took 81.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 11. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 2337 StatesRemovedByMinimization, 11 NontrivialMinimizations. Non-live state removal took 2.9s Buchi closure took 0.0s. Biggest automaton had 346 states and ocurred in iteration 7. Nontrivial modules had stage [9, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 98/102 HoareTripleCheckerStatistics: 49 SDtfs, 702 SDslu, 1210 SDs, 0 SdLazy, 7375 SolverSat, 837 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT7 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp71 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf93 smp96 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 23 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:33:45.803 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check