/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 10:34:37,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:34:37,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:34:37,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:34:37,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:34:37,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:34:37,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:34:37,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:34:37,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:34:37,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:34:37,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:34:37,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:34:37,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:34:37,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:34:37,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:34:37,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:34:37,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:34:37,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:34:37,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:34:37,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:34:37,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:34:37,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:34:37,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:34:37,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:34:37,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:34:37,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:34:37,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:34:37,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:34:37,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:34:37,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:34:37,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:34:37,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:34:37,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:34:37,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:34:37,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:34:37,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:34:37,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:34:37,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:34:37,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:34:37,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:34:37,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:34:37,574 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 10:34:37,589 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:34:37,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:34:37,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:34:37,590 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:34:37,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:34:37,591 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:34:37,591 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:34:37,591 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:34:37,591 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:34:37,591 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:34:37,591 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:34:37,592 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:34:37,592 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:34:37,592 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:34:37,592 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:34:37,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:34:37,593 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:34:37,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:34:37,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:34:37,593 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:34:37,593 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:34:37,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:34:37,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:34:37,594 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:34:37,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:34:37,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:34:37,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:34:37,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:34:37,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:34:37,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:34:37,779 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:34:37,782 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:34:37,784 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:34:37,784 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:34:37,785 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:34:38,202 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_5G6Sy3/tmp/e60b9cf8e96446cc812033212e9de58c/FLAG7da75383d !SESSION 2020-07-01 10:34:35.344 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_5G6Sy3/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.cdt.core 1 0 2020-07-01 10:34:38.330 !MESSAGE Indexed 'FLAG7da75383d' (0 sources, 0 headers) in 0.002 sec: 0 declarations; 0 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%) [2020-07-01 10:34:38,536 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:34:38,537 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:34:38,544 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_5G6Sy3/tmp/e60b9cf8e96446cc812033212e9de58c/FLAG7da75383d [2020-07-01 10:34:38,568 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_5G6Sy3/tmp/e60b9cf8e96446cc812033212e9de58c [2020-07-01 10:34:38,579 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:34:38,580 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:34:38,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:34:38,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:34:38,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:34:38,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:34:38" (1/1) ... [2020-07-01 10:34:38,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10c06dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:34:38, skipping insertion in model container [2020-07-01 10:34:38,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:34:38" (1/1) ... [2020-07-01 10:34:38,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:34:38,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:34:38,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:34:38,840 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:34:38,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:34:38,871 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:34:38,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:34:38 WrapperNode [2020-07-01 10:34:38,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:34:38,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:34:38,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:34:38,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:34:38,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:34:38" (1/1) ... [2020-07-01 10:34:38,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:34:38" (1/1) ... [2020-07-01 10:34:38,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:34:38,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:34:38,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:34:38,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:34:38,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:34:38" (1/1) ... [2020-07-01 10:34:38,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:34:38" (1/1) ... [2020-07-01 10:34:38,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:34:38" (1/1) ... [2020-07-01 10:34:38,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:34:38" (1/1) ... [2020-07-01 10:34:38,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:34:38" (1/1) ... [2020-07-01 10:34:38,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:34:38" (1/1) ... [2020-07-01 10:34:38,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:34:38" (1/1) ... [2020-07-01 10:34:38,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:34:38,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:34:38,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:34:38,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:34:38,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:34:38" (1/1) ... No working directory specified, using /export/starexec/sandbox2/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 10:34:39,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:34:39,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:34:39,155 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:34:39,156 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 10:34:39,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:34:39 BoogieIcfgContainer [2020-07-01 10:34:39,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:34:39,160 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:34:39,160 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:34:39,162 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:34:39,163 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:34:39" (1/1) ... [2020-07-01 10:34:39,175 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 10:34:39,177 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:34:39,177 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:34:39,178 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:34:39,178 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:34:39,180 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:34:39,181 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:34:39,181 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:34:39,195 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:34:39,209 INFO L200 BlockEncoder]: SBE split 2 edges [2020-07-01 10:34:39,213 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 10:34:39,215 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:34:39,224 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 10:34:39,226 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 10:34:39,227 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:34:39,227 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:34:39,228 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:34:39,228 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:34:39,228 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-07-01 10:34:39,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:34:39 BasicIcfg [2020-07-01 10:34:39,229 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:34:39,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:34:39,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:34:39,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:34:39,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:34:38" (1/4) ... [2020-07-01 10:34:39,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5035e89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:34:39, skipping insertion in model container [2020-07-01 10:34:39,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:34:38" (2/4) ... [2020-07-01 10:34:39,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5035e89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:34:39, skipping insertion in model container [2020-07-01 10:34:39,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:34:39" (3/4) ... [2020-07-01 10:34:39,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5035e89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:34:39, skipping insertion in model container [2020-07-01 10:34:39,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:34:39" (4/4) ... [2020-07-01 10:34:39,237 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:34:39,248 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:34:39,255 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:34:39,269 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:34:39,292 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:34:39,292 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:34:39,293 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:34:39,293 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:34:39,293 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:34:39,293 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:34:39,293 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:34:39,293 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:34:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 10:34:39,312 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:34:39,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 10:34:39,367 INFO L271 CegarLoopResult]: At program point L19-2(lines 18 25) the Hoare annotation is: true [2020-07-01 10:34:39,367 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:34:39,367 INFO L268 CegarLoopResult]: For program point L19(lines 19 24) no Hoare annotation was computed. [2020-07-01 10:34:39,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:34:39 BasicIcfg [2020-07-01 10:34:39,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:34:39,376 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:34:39,377 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:34:39,380 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:34:39,381 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:34:39,381 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:34:38" (1/5) ... [2020-07-01 10:34:39,382 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78556bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:34:39, skipping insertion in model container [2020-07-01 10:34:39,382 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:34:39,382 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:34:38" (2/5) ... [2020-07-01 10:34:39,382 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78556bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:34:39, skipping insertion in model container [2020-07-01 10:34:39,382 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:34:39,383 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:34:39" (3/5) ... [2020-07-01 10:34:39,383 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78556bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:34:39, skipping insertion in model container [2020-07-01 10:34:39,383 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:34:39,383 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:34:39" (4/5) ... [2020-07-01 10:34:39,384 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78556bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:34:39, skipping insertion in model container [2020-07-01 10:34:39,384 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:34:39,384 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:34:39" (5/5) ... [2020-07-01 10:34:39,386 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:34:39,414 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:34:39,414 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:34:39,415 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:34:39,417 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:34:39,417 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:34:39,417 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:34:39,417 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:34:39,417 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:34:39,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 10:34:39,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:34:39,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:34:39,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:34:39,451 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:34:39,451 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:34:39,451 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:34:39,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 10:34:39,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:34:39,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:34:39,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:34:39,452 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:34:39,453 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:34:39,457 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L19-2true [2020-07-01 10:34:39,458 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [29] L19-2-->L19: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~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_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 5#L19true [37] L19-->L19-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_3|) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~x~0] 4#L19-2true [2020-07-01 10:34:39,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:34:39,464 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-07-01 10:34:39,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:34:39,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387207784] [2020-07-01 10:34:39,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:34:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:39,547 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:34:39,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:34:39,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1897, now seen corresponding path program 1 times [2020-07-01 10:34:39,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:34:39,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601227481] [2020-07-01 10:34:39,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:34:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:39,563 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:34:39,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:34:39,565 INFO L82 PathProgramCache]: Analyzing trace with hash 54752, now seen corresponding path program 1 times [2020-07-01 10:34:39,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:34:39,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788704520] [2020-07-01 10:34:39,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:34:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:39,578 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:34:39,628 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:34:39,629 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:34:39,629 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:34:39,629 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:34:39,629 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:34:39,630 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:34:39,630 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:34:39,630 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:34:39,630 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:34:39,630 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:34:39,631 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:34:39,650 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 10:34:39,660 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 10:34:39,670 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 10:34:39,680 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 10:34:39,686 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 10:34:39,767 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:34:39,768 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 10:34:39,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:34:39,773 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:34:39,783 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:34:39,784 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 10:34:39,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:34:39,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:34:39,863 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:34:39,863 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 10:34:39,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:34:39,895 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 10:34:39,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:34:39,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:34:39,968 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:34:39,970 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:34:39,971 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:34:39,971 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:34:39,971 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:34:39,971 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:34:39,971 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:34:39,971 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:34:39,971 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:34:39,971 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:34:39,972 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:34:39,972 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:34:39,974 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 10:34:39,985 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 10:34:39,990 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 10:34:40,004 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 10:34:40,008 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 10:34:40,066 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:34:40,072 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:34:40,077 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 10:34:40,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:34:40,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:34:40,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:34:40,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:34:40,087 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:34:40,087 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:34:40,094 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:34:40,127 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 10:34:40,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:34:40,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:34:40,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:34:40,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:34:40,134 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:34:40,134 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:34:40,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/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 10:34:40,172 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 10:34:40,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:34:40,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:34:40,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:34:40,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:34:40,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:34:40,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:34:40,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:34:40,179 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:34:40,184 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:34:40,184 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/sandbox2/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 10:34:40,189 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:34:40,189 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:34:40,189 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:34:40,190 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 10:34:40,224 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:34:40,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:34:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:34:40,264 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:34:40,265 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:34:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:34:40,276 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:34:40,276 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:34:40,289 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 10:34:40,318 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 10:34:40,323 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 2 loop predicates [2020-07-01 10:34:40,324 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 10:34:40,360 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 12 transitions. Complement of second has 4 states. [2020-07-01 10:34:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 10:34:40,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:34:40,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 10:34:40,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 10:34:40,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:34:40,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 10:34:40,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:34:40,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 10:34:40,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:34:40,372 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 12 transitions. [2020-07-01 10:34:40,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:34:40,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 12 transitions. [2020-07-01 10:34:40,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 10:34:40,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 10:34:40,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 12 transitions. [2020-07-01 10:34:40,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:34:40,379 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 10:34:40,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 12 transitions. [2020-07-01 10:34:40,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-01 10:34:40,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 10:34:40,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2020-07-01 10:34:40,408 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 10:34:40,408 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 10:34:40,408 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 10:34:40,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 12 transitions. [2020-07-01 10:34:40,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:34:40,409 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:34:40,409 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:34:40,409 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 10:34:40,409 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:34:40,410 INFO L794 eck$LassoCheckResult]: Stem: 43#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_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~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} 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~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 44#L19-2 [29] L19-2-->L19: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~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_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 49#L19 [31] L19-->L19-2: Formula: (and (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1))) (= v_ULTIMATE.start_main_~x~0_10 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 45#L19-2 [2020-07-01 10:34:40,410 INFO L796 eck$LassoCheckResult]: Loop: 45#L19-2 [29] L19-2-->L19: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~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_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 46#L19 [37] L19-->L19-2: Formula: (and (> 0 |v_ULTIMATE.start_main_#t~nondet2_3|) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1)))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~x~0] 45#L19-2 [2020-07-01 10:34:40,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:34:40,410 INFO L82 PathProgramCache]: Analyzing trace with hash 54746, now seen corresponding path program 1 times [2020-07-01 10:34:40,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:34:40,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729681992] [2020-07-01 10:34:40,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:34:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:40,422 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:34:40,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:34:40,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1897, now seen corresponding path program 2 times [2020-07-01 10:34:40,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:34:40,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037956956] [2020-07-01 10:34:40,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:34:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:40,430 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:34:40,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:34:40,430 INFO L82 PathProgramCache]: Analyzing trace with hash 52611842, now seen corresponding path program 1 times [2020-07-01 10:34:40,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:34:40,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853739389] [2020-07-01 10:34:40,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:34:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:40,446 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:34:40,462 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:34:40,462 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:34:40,462 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:34:40,462 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:34:40,462 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:34:40,462 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:34:40,463 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:34:40,463 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:34:40,463 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 10:34:40,463 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:34:40,463 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:34:40,465 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 10:34:40,468 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 10:34:40,474 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 10:34:40,477 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 10:34:40,480 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 10:34:40,558 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:34:40,558 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:34:40,564 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:34:40,564 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:34:40,569 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:34:40,569 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:34:40,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:34:40,605 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:34:40,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:34:40,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:34:40,681 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:34:40,683 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:34:40,683 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:34:40,683 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:34:40,683 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:34:40,683 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:34:40,684 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:34:40,684 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:34:40,684 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:34:40,684 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 10:34:40,684 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:34:40,684 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:34:40,686 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 10:34:40,689 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 10:34:40,695 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 10:34:40,698 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 10:34:40,701 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 10:34:40,754 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:34:40,754 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:34:40,757 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 10:34:40,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:34:40,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:34:40,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:34:40,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:34:40,763 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:34:40,763 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:34:40,768 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:34:40,801 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 10:34:40,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:34:40,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:34:40,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:34:40,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:34:40,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:34:40,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:34:40,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:34:40,811 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:34:40,814 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 10:34:40,815 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:34:40,818 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:34:40,818 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:34:40,818 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:34:40,818 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 10:34:40,849 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:34:40,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:34:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:34:40,876 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:34:40,876 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:34:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:34:40,883 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:34:40,884 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:34:40,897 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 10:34:40,910 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 10:34:40,911 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 2 loop predicates [2020-07-01 10:34:40,911 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-07-01 10:34:40,936 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 9 states and 15 transitions. Complement of second has 4 states. [2020-07-01 10:34:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 10:34:40,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:34:40,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 10:34:40,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 10:34:40,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:34:40,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 10:34:40,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:34:40,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 10:34:40,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:34:40,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 15 transitions. [2020-07-01 10:34:40,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 10:34:40,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 15 transitions. [2020-07-01 10:34:40,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 10:34:40,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 10:34:40,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 15 transitions. [2020-07-01 10:34:40,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:34:40,942 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. [2020-07-01 10:34:40,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 15 transitions. [2020-07-01 10:34:40,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. [2020-07-01 10:34:40,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 10:34:40,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 10:34:40,944 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 10:34:40,944 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 10:34:40,944 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 10:34:40,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-07-01 10:34:40,944 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 10:34:40,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:34:40,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:34:40,945 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:34:40,945 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:34:40,945 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 96#L19-2 [2020-07-01 10:34:40,946 INFO L796 eck$LassoCheckResult]: Loop: 96#L19-2 [29] L19-2-->L19: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~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_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 98#L19 [31] L19-->L19-2: Formula: (and (= 0 |v_ULTIMATE.start_main_#t~nondet2_5|) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1))) (= v_ULTIMATE.start_main_~x~0_10 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_5|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 96#L19-2 [2020-07-01 10:34:40,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:34:40,946 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2020-07-01 10:34:40,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:34:40,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818383504] [2020-07-01 10:34:40,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:34:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:40,952 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:34:40,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:34:40,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2020-07-01 10:34:40,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:34:40,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342969703] [2020-07-01 10:34:40,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:34:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:40,960 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:34:40,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:34:40,961 INFO L82 PathProgramCache]: Analyzing trace with hash 54746, now seen corresponding path program 2 times [2020-07-01 10:34:40,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:34:40,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374228207] [2020-07-01 10:34:40,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:34:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:34:40,970 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:34:40,991 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:34:40,991 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:34:40,991 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:34:40,991 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:34:40,991 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:34:40,991 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:34:40,991 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:34:40,992 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:34:40,992 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 10:34:40,992 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:34:40,992 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:34:40,993 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 10:34:40,997 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 10:34:41,001 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 10:34:41,008 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 10:34:41,015 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 10:34:41,087 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:34:41,087 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 10:34:41,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:34:41,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:34:41,097 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:34:41,098 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/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 10:34:41,131 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:34:41,131 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:34:41,136 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:34:41,136 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:34:41,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:34:41,171 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:34:41,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:34:41,207 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:34:41,245 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:34:41,247 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:34:41,247 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:34:41,247 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:34:41,247 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:34:41,247 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:34:41,247 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:34:41,247 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:34:41,247 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:34:41,248 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 10:34:41,248 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:34:41,248 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:34:41,250 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 10:34:41,254 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 10:34:41,257 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 10:34:41,263 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 10:34:41,270 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 10:34:41,345 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:34:41,345 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/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 10:34:41,349 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 10:34:41,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:34:41,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:34:41,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:34:41,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:34:41,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:34:41,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:34:41,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:34:41,354 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/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 10:34:41,386 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 10:34:41,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:34:41,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:34:41,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:34:41,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:34:41,391 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:34:41,391 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:34:41,396 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:34:41,430 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 10:34:41,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:34:41,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:34:41,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:34:41,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:34:41,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:34:41,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:34:41,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:34:41,437 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:34:41,442 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:34:41,442 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/sandbox2/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:34:41,448 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:34:41,448 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:34:41,448 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:34:41,449 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 10:34:41,479 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:34:41,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:34:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:34:41,513 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:34:41,513 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:34:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:34:41,518 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:34:41,518 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:34:41,528 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 10:34:41,536 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 10:34:41,537 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 2 loop predicates [2020-07-01 10:34:41,537 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-07-01 10:34:41,555 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 20 transitions. Complement of second has 4 states. [2020-07-01 10:34:41,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 10:34:41,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:34:41,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-07-01 10:34:41,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 10:34:41,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:34:41,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 10:34:41,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:34:41,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 10:34:41,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:34:41,558 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 20 transitions. [2020-07-01 10:34:41,559 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:34:41,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-07-01 10:34:41,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 10:34:41,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 10:34:41,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 10:34:41,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 10:34:41,560 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:34:41,560 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:34:41,560 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:34:41,560 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 10:34:41,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 10:34:41,561 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:34:41,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 10:34:41,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:34:41 BasicIcfg [2020-07-01 10:34:41,567 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:34:41,569 INFO L168 Benchmark]: Toolchain (without parser) took 2988.33 ms. Allocated memory was 514.9 MB in the beginning and 588.3 MB in the end (delta: 73.4 MB). Free memory was 439.0 MB in the beginning and 430.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 82.2 MB. Max. memory is 50.3 GB. [2020-07-01 10:34:41,570 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 514.9 MB. Free memory is still 458.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:34:41,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.22 ms. Allocated memory was 514.9 MB in the beginning and 561.5 MB in the end (delta: 46.7 MB). Free memory was 439.0 MB in the beginning and 529.2 MB in the end (delta: -90.3 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:34:41,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.22 ms. Allocated memory is still 561.5 MB. Free memory was 529.2 MB in the beginning and 527.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:34:41,571 INFO L168 Benchmark]: Boogie Preprocessor took 19.52 ms. Allocated memory is still 561.5 MB. Free memory was 527.6 MB in the beginning and 526.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:34:41,572 INFO L168 Benchmark]: RCFGBuilder took 231.23 ms. Allocated memory is still 561.5 MB. Free memory was 526.0 MB in the beginning and 514.6 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:34:41,572 INFO L168 Benchmark]: BlockEncodingV2 took 68.94 ms. Allocated memory is still 561.5 MB. Free memory was 514.1 MB in the beginning and 509.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 50.3 GB. [2020-07-01 10:34:41,573 INFO L168 Benchmark]: TraceAbstraction took 145.79 ms. Allocated memory is still 561.5 MB. Free memory was 508.7 MB in the beginning and 500.5 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:34:41,573 INFO L168 Benchmark]: BuchiAutomizer took 2190.59 ms. Allocated memory was 561.5 MB in the beginning and 588.3 MB in the end (delta: 26.7 MB). Free memory was 500.5 MB in the beginning and 430.1 MB in the end (delta: 70.3 MB). Peak memory consumption was 97.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:34:41,577 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 514.9 MB. Free memory is still 458.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 291.22 ms. Allocated memory was 514.9 MB in the beginning and 561.5 MB in the end (delta: 46.7 MB). Free memory was 439.0 MB in the beginning and 529.2 MB in the end (delta: -90.3 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.22 ms. Allocated memory is still 561.5 MB. Free memory was 529.2 MB in the beginning and 527.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.52 ms. Allocated memory is still 561.5 MB. Free memory was 527.6 MB in the beginning and 526.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * RCFGBuilder took 231.23 ms. Allocated memory is still 561.5 MB. Free memory was 526.0 MB in the beginning and 514.6 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 68.94 ms. Allocated memory is still 561.5 MB. Free memory was 514.1 MB in the beginning and 509.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 50.3 GB. * TraceAbstraction took 145.79 ms. Allocated memory is still 561.5 MB. Free memory was 508.7 MB in the beginning and 500.5 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2190.59 ms. Allocated memory was 561.5 MB in the beginning and 588.3 MB in the end (delta: 26.7 MB). Free memory was 500.5 MB in the beginning and 430.1 MB in the end (delta: 70.3 MB). Peak memory consumption was 97.1 MB. 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 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=3occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 22 SDslu, 2 SDs, 0 SdLazy, 37 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax171 hnf100 lsp34 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - 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 10:34:42.208 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check