/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 11:26:06,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:26:06,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:26:06,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:26:06,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:26:06,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:26:06,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:26:06,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:26:06,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:26:06,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:26:06,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:26:06,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:26:06,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:26:06,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:26:06,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:26:06,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:26:06,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:26:06,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:26:06,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:26:06,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:26:06,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:26:06,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:26:06,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:26:06,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:26:06,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:26:06,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:26:06,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:26:06,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:26:06,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:26:06,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:26:06,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:26:06,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:26:06,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:26:06,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:26:06,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:26:06,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:26:06,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:26:06,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:26:06,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:26:06,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:26:06,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:26:06,092 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:26:06,106 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:26:06,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:26:06,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:26:06,107 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:26:06,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:26:06,107 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:26:06,108 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:26:06,108 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:26:06,108 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:26:06,108 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:26:06,108 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:26:06,109 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:26:06,109 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:26:06,109 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:26:06,109 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:26:06,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:26:06,109 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:26:06,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:26:06,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:26:06,110 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:26:06,110 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:26:06,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:26:06,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:26:06,111 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:26:06,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:26:06,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:26:06,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:26:06,111 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:26:06,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:26:06,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:26:06,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:26:06,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:26:06,293 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:26:06,293 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:26:06,294 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:26:06,400 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_vux0bL/tmp/e313880ce3ca45c2ad125570d4e2baf0/FLAGc1688f2c2 [2020-07-01 11:26:06,728 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:26:06,729 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:26:06,735 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_vux0bL/tmp/e313880ce3ca45c2ad125570d4e2baf0/FLAGc1688f2c2 [2020-07-01 11:26:07,146 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_vux0bL/tmp/e313880ce3ca45c2ad125570d4e2baf0 [2020-07-01 11:26:07,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:26:07,159 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:26:07,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:26:07,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:26:07,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:26:07,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:26:07" (1/1) ... [2020-07-01 11:26:07,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ecf2fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:26:07, skipping insertion in model container [2020-07-01 11:26:07,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:26:07" (1/1) ... [2020-07-01 11:26:07,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:26:07,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:26:07,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:26:07,425 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:26:07,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:26:07,457 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:26:07,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:26:07 WrapperNode [2020-07-01 11:26:07,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:26:07,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:26:07,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:26:07,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:26:07,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:26:07" (1/1) ... [2020-07-01 11:26:07,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:26:07" (1/1) ... [2020-07-01 11:26:07,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:26:07,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:26:07,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:26:07,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:26:07,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:26:07" (1/1) ... [2020-07-01 11:26:07,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:26:07" (1/1) ... [2020-07-01 11:26:07,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:26:07" (1/1) ... [2020-07-01 11:26:07,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:26:07" (1/1) ... [2020-07-01 11:26:07,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:26:07" (1/1) ... [2020-07-01 11:26:07,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:26:07" (1/1) ... [2020-07-01 11:26:07,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:26:07" (1/1) ... [2020-07-01 11:26:07,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:26:07,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:26:07,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:26:07,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:26:07,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:26:07" (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 11:26:07,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:26:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:26:07,746 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:26:07,747 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:26:07,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:26:07 BoogieIcfgContainer [2020-07-01 11:26:07,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:26:07,751 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:26:07,751 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:26:07,753 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:26:07,754 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:26:07" (1/1) ... [2020-07-01 11:26:07,766 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 11:26:07,768 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:26:07,768 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:26:07,769 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:26:07,769 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:26:07,771 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:26:07,772 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:26:07,772 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:26:07,786 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:26:07,799 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 11:26:07,804 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:26:07,806 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:26:07,814 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:26:07,816 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-07-01 11:26:07,817 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:26:07,817 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:26:07,820 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:26:07,821 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:26:07,821 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:26:07,821 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:26:07,821 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:26:07,822 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:26:07,822 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 11:26:07,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:26:07 BasicIcfg [2020-07-01 11:26:07,823 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:26:07,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:26:07,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:26:07,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:26:07,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:26:07" (1/4) ... [2020-07-01 11:26:07,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d18fab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:26:07, skipping insertion in model container [2020-07-01 11:26:07,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:26:07" (2/4) ... [2020-07-01 11:26:07,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d18fab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:26:07, skipping insertion in model container [2020-07-01 11:26:07,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:26:07" (3/4) ... [2020-07-01 11:26:07,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d18fab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:26:07, skipping insertion in model container [2020-07-01 11:26:07,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:26:07" (4/4) ... [2020-07-01 11:26:07,831 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:26:07,842 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:26:07,848 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:26:07,862 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:26:07,885 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:26:07,885 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:26:07,886 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:26:07,886 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:26:07,886 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:26:07,886 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:26:07,886 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:26:07,886 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:26:07,900 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:26:07,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:26:07,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:26:07,960 INFO L271 CegarLoopResult]: At program point L19-2(lines 18 25) the Hoare annotation is: true [2020-07-01 11:26:07,960 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:26:07,960 INFO L268 CegarLoopResult]: For program point L19(lines 19 24) no Hoare annotation was computed. [2020-07-01 11:26:07,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:26:07 BasicIcfg [2020-07-01 11:26:07,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:26:07,969 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:26:07,969 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:26:07,973 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:26:07,974 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:26:07,974 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:26:07" (1/5) ... [2020-07-01 11:26:07,975 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@abd8f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:26:07, skipping insertion in model container [2020-07-01 11:26:07,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:26:07,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:26:07" (2/5) ... [2020-07-01 11:26:07,976 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@abd8f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:26:07, skipping insertion in model container [2020-07-01 11:26:07,976 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:26:07,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:26:07" (3/5) ... [2020-07-01 11:26:07,976 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@abd8f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:26:07, skipping insertion in model container [2020-07-01 11:26:07,976 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:26:07,977 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:26:07" (4/5) ... [2020-07-01 11:26:07,977 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@abd8f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:26:07, skipping insertion in model container [2020-07-01 11:26:07,977 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:26:07,977 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:26:07" (5/5) ... [2020-07-01 11:26:07,979 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:26:08,006 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:26:08,007 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:26:08,007 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:26:08,007 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:26:08,007 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:26:08,007 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:26:08,007 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:26:08,007 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:26:08,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:26:08,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:26:08,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:26:08,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:26:08,033 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:26:08,033 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:26:08,033 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:26:08,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:26:08,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:26:08,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:26:08,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:26:08,034 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:26:08,034 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:26:08,039 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [48] ULTIMATE.startENTRY-->L19-2: Formula: (and (= 0 v_ULTIMATE.start_main_~i~0_9) (< 0 v_ULTIMATE.start_main_~m~0_8) (< v_ULTIMATE.start_main_~m~0_8 v_ULTIMATE.start_main_~n~0_8) (= 0 v_ULTIMATE.start_main_~j~0_9)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_4|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_4|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~i~0] 4#L19-2true [2020-07-01 11:26:08,039 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [36] L19-2-->L19: Formula: (< v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[] 5#L19true [37] L19-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~j~0_2 v_ULTIMATE.start_main_~m~0_1) (= v_ULTIMATE.start_main_~j~0_1 (+ v_ULTIMATE.start_main_~j~0_2 1))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~post2] 4#L19-2true [2020-07-01 11:26:08,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:26:08,046 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times [2020-07-01 11:26:08,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:26:08,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376419426] [2020-07-01 11:26:08,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:26:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:26:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:26:08,129 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:26:08,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:26:08,131 INFO L82 PathProgramCache]: Analyzing trace with hash 2114, now seen corresponding path program 1 times [2020-07-01 11:26:08,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:26:08,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957104897] [2020-07-01 11:26:08,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:26:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:26:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:26:08,141 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:26:08,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:26:08,143 INFO L82 PathProgramCache]: Analyzing trace with hash 77072, now seen corresponding path program 1 times [2020-07-01 11:26:08,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:26:08,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562855128] [2020-07-01 11:26:08,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:26:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:26:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:26:08,159 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:26:08,199 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:26:08,200 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:26:08,200 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:26:08,201 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:26:08,201 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:26:08,201 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:26:08,201 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:26:08,201 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:26:08,201 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:26:08,202 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:26:08,202 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:26:08,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:08,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:08,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:08,288 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:26:08,289 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 11:26:08,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:26:08,294 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:26:08,308 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:26:08,308 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=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 11:26:08,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:26:08,342 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:26:08,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:26:08,379 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:26:08,533 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:26:08,536 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:26:08,536 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:26:08,536 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:26:08,536 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:26:08,537 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:26:08,537 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:26:08,537 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:26:08,537 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:26:08,537 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:26:08,537 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:26:08,537 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:26:08,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:08,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:08,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:08,599 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:26:08,605 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:26:08,611 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:26:08,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:26:08,614 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:26:08,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:26:08,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:26:08,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:26:08,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:26:08,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:26:08,621 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 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 11:26:08,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:26:08,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:26:08,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:26:08,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:26:08,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:26:08,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:26:08,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:26:08,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:26:08,662 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:26:08,669 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:26:08,669 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/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 11:26:08,675 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:26:08,676 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:26:08,676 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:26:08,677 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-07-01 11:26:08,710 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:26:08,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:26:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:26:08,774 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:26:08,775 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:26:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:26:08,788 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:26:08,788 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:26:08,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:26:08,803 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:26:08,808 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 1 loop predicates [2020-07-01 11:26:08,809 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:26:08,839 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 10 transitions. Complement of second has 4 states. [2020-07-01 11:26:08,840 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 11:26:08,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:26:08,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 11:26:08,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:26:08,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:26:08,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:26:08,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:26:08,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:26:08,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:26:08,853 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-07-01 11:26:08,853 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:26:08,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 11:26:08,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:26:08,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:26:08,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-07-01 11:26:08,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:26:08,860 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:26:08,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-07-01 11:26:08,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-01 11:26:08,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:26:08,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 11:26:08,889 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:26:08,889 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:26:08,889 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:26:08,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-01 11:26:08,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:26:08,890 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:26:08,890 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:26:08,891 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:26:08,891 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:26:08,891 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L19-2: Formula: (and (= 0 v_ULTIMATE.start_main_~i~0_9) (< 0 v_ULTIMATE.start_main_~m~0_8) (< v_ULTIMATE.start_main_~m~0_8 v_ULTIMATE.start_main_~n~0_8) (= 0 v_ULTIMATE.start_main_~j~0_9)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_4|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_4|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~i~0] 42#L19-2 [36] L19-2-->L19: Formula: (< v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[] 47#L19 [43] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_4 (+ v_ULTIMATE.start_main_~i~0_5 1)) (>= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~m~0_5) (= v_ULTIMATE.start_main_~j~0_6 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_5} OutVars{ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_4, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~i~0] 43#L19-2 [2020-07-01 11:26:08,891 INFO L796 eck$LassoCheckResult]: Loop: 43#L19-2 [36] L19-2-->L19: Formula: (< v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[] 44#L19 [37] L19-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~j~0_2 v_ULTIMATE.start_main_~m~0_1) (= v_ULTIMATE.start_main_~j~0_1 (+ v_ULTIMATE.start_main_~j~0_2 1))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~post2] 43#L19-2 [2020-07-01 11:26:08,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:26:08,892 INFO L82 PathProgramCache]: Analyzing trace with hash 77078, now seen corresponding path program 1 times [2020-07-01 11:26:08,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:26:08,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619982595] [2020-07-01 11:26:08,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:26:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:26:08,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:26:08,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619982595] [2020-07-01 11:26:08,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:26:08,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-01 11:26:08,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986515228] [2020-07-01 11:26:08,936 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 11:26:08,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:26:08,936 INFO L82 PathProgramCache]: Analyzing trace with hash 2114, now seen corresponding path program 2 times [2020-07-01 11:26:08,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:26:08,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455141908] [2020-07-01 11:26:08,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:26:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:26:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:26:08,944 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:26:08,960 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:26:08,961 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:26:08,961 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:26:08,961 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:26:08,961 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:26:08,961 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:26:08,961 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:26:08,962 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:26:08,962 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:26:08,962 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:26:08,962 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:26:08,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:08,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:08,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:09,004 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:26:09,004 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:26:09,007 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:26:09,007 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:26:09,011 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:26:09,011 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:26:09,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:26:09,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:26:09,048 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:26:09,048 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 11:26:09,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:26:09,080 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:26:09,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:26:09,116 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:26:09,281 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:26:09,284 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:26:09,284 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:26:09,284 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:26:09,284 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:26:09,284 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:26:09,284 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:26:09,284 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:26:09,285 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:26:09,285 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:26:09,285 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:26:09,285 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:26:09,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:09,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:09,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:09,333 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:26:09,333 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:26:09,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:26:09,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:26:09,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:26:09,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:26:09,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:26:09,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:26:09,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:26:09,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:26:09,344 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 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 11:26:09,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:26:09,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:26:09,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:26:09,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:26:09,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:26:09,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:26:09,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:26:09,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:26:09,383 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 11:26:09,415 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:26:09,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:26:09,418 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:26:09,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:26:09,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:26:09,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:26:09,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:26:09,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:26:09,423 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:26:09,426 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:26:09,427 INFO L444 ModelExtractionUtils]: 1 out of 4 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 11:26:09,431 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:26:09,432 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:26:09,432 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:26:09,432 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2020-07-01 11:26:09,462 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:26:09,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:26:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:26:09,483 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:26:09,484 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:26:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:26:09,491 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:26:09,492 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:26:09,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:26:09,492 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:26:09,493 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 1 loop predicates [2020-07-01 11:26:09,493 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-07-01 11:26:09,506 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 9 states and 13 transitions. Complement of second has 4 states. [2020-07-01 11:26:09,506 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 11:26:09,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:26:09,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 11:26:09,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:26:09,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:26:09,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 11:26:09,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:26:09,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 11:26:09,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:26:09,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. [2020-07-01 11:26:09,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:26:09,511 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 13 transitions. [2020-07-01 11:26:09,511 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:26:09,511 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:26:09,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2020-07-01 11:26:09,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:26:09,512 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-07-01 11:26:09,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2020-07-01 11:26:09,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. [2020-07-01 11:26:09,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:26:09,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-07-01 11:26:09,513 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 11:26:09,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:26:09,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 11:26:09,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 11:26:09,517 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand 3 states. [2020-07-01 11:26:09,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:26:09,527 INFO L93 Difference]: Finished difference Result 8 states and 10 transitions. [2020-07-01 11:26:09,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 11:26:09,528 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 10 transitions. [2020-07-01 11:26:09,529 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:26:09,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 9 transitions. [2020-07-01 11:26:09,530 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:26:09,530 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 11:26:09,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2020-07-01 11:26:09,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:26:09,530 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-07-01 11:26:09,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2020-07-01 11:26:09,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-07-01 11:26:09,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-01 11:26:09,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-07-01 11:26:09,532 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-07-01 11:26:09,532 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-07-01 11:26:09,532 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:26:09,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-07-01 11:26:09,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:26:09,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:26:09,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:26:09,533 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2020-07-01 11:26:09,534 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:26:09,534 INFO L794 eck$LassoCheckResult]: Stem: 103#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L19-2: Formula: (and (= 0 v_ULTIMATE.start_main_~i~0_9) (< 0 v_ULTIMATE.start_main_~m~0_8) (< v_ULTIMATE.start_main_~m~0_8 v_ULTIMATE.start_main_~n~0_8) (= 0 v_ULTIMATE.start_main_~j~0_9)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_8, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_4|, ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_4|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~i~0] 104#L19-2 [36] L19-2-->L19: Formula: (< v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[] 105#L19 [37] L19-->L19-2: Formula: (and (< v_ULTIMATE.start_main_~j~0_2 v_ULTIMATE.start_main_~m~0_1) (= v_ULTIMATE.start_main_~j~0_1 (+ v_ULTIMATE.start_main_~j~0_2 1))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_#t~post2=|v_ULTIMATE.start_main_#t~post2_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~post2] 106#L19-2 [36] L19-2-->L19: Formula: (< v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[] 107#L19 [2020-07-01 11:26:09,534 INFO L796 eck$LassoCheckResult]: Loop: 107#L19 [43] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_4 (+ v_ULTIMATE.start_main_~i~0_5 1)) (>= v_ULTIMATE.start_main_~j~0_7 v_ULTIMATE.start_main_~m~0_5) (= v_ULTIMATE.start_main_~j~0_6 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_5, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_5} OutVars{ULTIMATE.start_main_#t~post3=|v_ULTIMATE.start_main_#t~post3_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_4, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~i~0] 108#L19-2 [36] L19-2-->L19: Formula: (< v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~n~0_7) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_7, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[] 107#L19 [2020-07-01 11:26:09,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:26:09,535 INFO L82 PathProgramCache]: Analyzing trace with hash 2389268, now seen corresponding path program 2 times [2020-07-01 11:26:09,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:26:09,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601725336] [2020-07-01 11:26:09,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:26:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:26:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:26:09,546 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:26:09,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:26:09,546 INFO L82 PathProgramCache]: Analyzing trace with hash 2330, now seen corresponding path program 1 times [2020-07-01 11:26:09,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:26:09,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154943024] [2020-07-01 11:26:09,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:26:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:26:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:26:09,553 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:26:09,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:26:09,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1998879379, now seen corresponding path program 1 times [2020-07-01 11:26:09,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:26:09,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676568003] [2020-07-01 11:26:09,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:26:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:26:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:26:09,567 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:26:09,593 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:26:09,593 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:26:09,593 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:26:09,594 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:26:09,594 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:26:09,594 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:26:09,594 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:26:09,595 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:26:09,595 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:26:09,595 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:26:09,595 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:26:09,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:09,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:09,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:09,663 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:26:09,663 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 11:26:09,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:26:09,672 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:26:09,676 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:26:09,677 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~m~0=0} Honda state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~m~0=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 11:26:09,711 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:26:09,711 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:26:09,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:26:09,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:26:10,112 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:26:10,114 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:26:10,115 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:26:10,115 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:26:10,115 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:26:10,115 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:26:10,115 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:26:10,115 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:26:10,115 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:26:10,115 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:26:10,115 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:26:10,116 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:26:10,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:10,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:10,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:26:10,174 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:26:10,174 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:26:10,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:26:10,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:26:10,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:26:10,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:26:10,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:26:10,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:26:10,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:26:10,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:26:10,200 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:26:10,232 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:26:10,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:26:10,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:26:10,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:26:10,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:26:10,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:26:10,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:26:10,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:26:10,238 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:26:10,244 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 11:26:10,244 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/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 11:26:10,249 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:26:10,249 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:26:10,250 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:26:10,250 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~n~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2020-07-01 11:26:10,280 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:26:10,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:26:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:26:10,301 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:26:10,302 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:26:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:26:10,307 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:26:10,307 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:26:10,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:26:10,322 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:26:10,323 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 11:26:10,323 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-07-01 11:26:10,344 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 17 states and 24 transitions. Complement of second has 8 states. [2020-07-01 11:26:10,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 11:26:10,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:26:10,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-07-01 11:26:10,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-01 11:26:10,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:26:10,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-01 11:26:10,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:26:10,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 4 letters. [2020-07-01 11:26:10,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:26:10,348 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2020-07-01 11:26:10,349 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:26:10,349 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2020-07-01 11:26:10,350 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:26:10,350 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:26:10,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:26:10,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:26:10,351 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:26:10,351 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:26:10,351 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:26:10,351 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:26:10,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:26:10,351 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:26:10,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:26:10,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:26:10 BasicIcfg [2020-07-01 11:26:10,357 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:26:10,360 INFO L168 Benchmark]: Toolchain (without parser) took 3200.00 ms. Allocated memory was 649.6 MB in the beginning and 702.5 MB in the end (delta: 53.0 MB). Free memory was 561.4 MB in the beginning and 429.6 MB in the end (delta: 131.8 MB). Peak memory consumption was 184.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:26:10,360 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:26:10,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.60 ms. Allocated memory was 649.6 MB in the beginning and 702.5 MB in the end (delta: 53.0 MB). Free memory was 561.4 MB in the beginning and 666.4 MB in the end (delta: -105.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:26:10,361 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.50 ms. Allocated memory is still 702.5 MB. Free memory was 666.4 MB in the beginning and 665.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:26:10,362 INFO L168 Benchmark]: Boogie Preprocessor took 20.10 ms. Allocated memory is still 702.5 MB. Free memory was 665.3 MB in the beginning and 664.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:26:10,362 INFO L168 Benchmark]: RCFGBuilder took 237.08 ms. Allocated memory is still 702.5 MB. Free memory was 663.2 MB in the beginning and 648.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:26:10,363 INFO L168 Benchmark]: BlockEncodingV2 took 71.71 ms. Allocated memory is still 702.5 MB. Free memory was 648.5 MB in the beginning and 643.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:26:10,363 INFO L168 Benchmark]: TraceAbstraction took 144.97 ms. Allocated memory is still 702.5 MB. Free memory was 643.2 MB in the beginning and 634.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:26:10,364 INFO L168 Benchmark]: BuchiAutomizer took 2388.11 ms. Allocated memory is still 702.5 MB. Free memory was 634.5 MB in the beginning and 429.6 MB in the end (delta: 204.9 MB). Peak memory consumption was 204.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:26:10,367 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 297.60 ms. Allocated memory was 649.6 MB in the beginning and 702.5 MB in the end (delta: 53.0 MB). Free memory was 561.4 MB in the beginning and 666.4 MB in the end (delta: -105.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.50 ms. Allocated memory is still 702.5 MB. Free memory was 666.4 MB in the beginning and 665.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.10 ms. Allocated memory is still 702.5 MB. Free memory was 665.3 MB in the beginning and 664.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 237.08 ms. Allocated memory is still 702.5 MB. Free memory was 663.2 MB in the beginning and 648.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 71.71 ms. Allocated memory is still 702.5 MB. Free memory was 648.5 MB in the beginning and 643.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 144.97 ms. Allocated memory is still 702.5 MB. Free memory was 643.2 MB in the beginning and 634.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2388.11 ms. Allocated memory is still 702.5 MB. Free memory was 634.5 MB in the beginning and 429.6 MB in the end (delta: 204.9 MB). Peak memory consumption was 204.9 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 4 terminating modules (1 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function m + -1 * j and consists of 3 locations. One nondeterministic module has affine ranking function -1 * j + m and consists of 3 locations. One nondeterministic module has affine ranking function -1 * i + n and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.9s. 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 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 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: 14 SDtfs, 16 SDslu, 5 SDs, 0 SdLazy, 21 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:26:03.878 ----------------------------------------------- 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_vux0bL/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:26:11.203 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check