java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label58_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 18:43:50,765 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 18:43:50,767 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 18:43:50,782 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 18:43:50,783 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 18:43:50,784 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 18:43:50,785 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 18:43:50,787 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 18:43:50,789 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 18:43:50,790 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 18:43:50,791 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 18:43:50,792 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 18:43:50,793 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 18:43:50,796 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 18:43:50,800 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 18:43:50,801 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 18:43:50,805 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 18:43:50,807 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 18:43:50,811 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 18:43:50,813 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 18:43:50,818 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 18:43:50,820 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 18:43:50,822 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 18:43:50,822 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 18:43:50,822 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 18:43:50,823 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 18:43:50,824 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 18:43:50,825 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 18:43:50,826 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 18:43:50,827 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 18:43:50,827 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 18:43:50,827 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-23 18:43:50,830 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-23 18:43:50,844 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 18:43:50,845 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 18:43:50,845 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 18:43:50,846 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 18:43:50,846 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 18:43:50,846 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 18:43:50,847 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 18:43:50,847 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 18:43:50,847 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 18:43:50,847 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 18:43:50,848 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 18:43:50,848 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 18:43:50,848 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 18:43:50,848 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 18:43:50,848 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 18:43:50,849 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 18:43:50,849 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 18:43:50,849 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 18:43:50,849 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 18:43:50,849 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 18:43:50,850 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 18:43:50,850 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 18:43:50,850 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 18:43:50,850 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 18:43:50,851 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 18:43:50,851 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 18:43:50,851 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 18:43:50,851 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 18:43:50,896 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 18:43:50,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 18:43:50,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 18:43:50,914 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 18:43:50,915 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 18:43:50,916 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label58_false-unreach-call.c [2018-10-23 18:43:50,980 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c32fa7490/5577772a13fa4754ada0cdd60bf33928/FLAG5780a967a [2018-10-23 18:43:51,829 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 18:43:51,830 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label58_false-unreach-call.c [2018-10-23 18:43:51,878 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c32fa7490/5577772a13fa4754ada0cdd60bf33928/FLAG5780a967a [2018-10-23 18:43:51,900 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c32fa7490/5577772a13fa4754ada0cdd60bf33928 [2018-10-23 18:43:51,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 18:43:51,916 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 18:43:51,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 18:43:51,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 18:43:51,924 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 18:43:51,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:43:51" (1/1) ... [2018-10-23 18:43:51,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba9c3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:51, skipping insertion in model container [2018-10-23 18:43:51,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:43:51" (1/1) ... [2018-10-23 18:43:51,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 18:43:52,214 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 18:43:54,166 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:43:54,171 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 18:43:55,312 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:43:55,372 INFO L193 MainTranslator]: Completed translation [2018-10-23 18:43:55,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:55 WrapperNode [2018-10-23 18:43:55,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 18:43:55,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 18:43:55,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 18:43:55,375 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 18:43:55,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:55" (1/1) ... [2018-10-23 18:43:55,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:55" (1/1) ... [2018-10-23 18:43:56,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 18:43:56,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 18:43:56,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 18:43:56,522 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 18:43:56,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:55" (1/1) ... [2018-10-23 18:43:56,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:55" (1/1) ... [2018-10-23 18:43:56,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:55" (1/1) ... [2018-10-23 18:43:56,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:55" (1/1) ... [2018-10-23 18:43:56,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:55" (1/1) ... [2018-10-23 18:43:56,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:55" (1/1) ... [2018-10-23 18:43:57,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:55" (1/1) ... [2018-10-23 18:43:57,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 18:43:57,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 18:43:57,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 18:43:57,213 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 18:43:57,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 18:43:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 18:43:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 18:43:57,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 18:44:15,006 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 18:44:15,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:44:15 BoogieIcfgContainer [2018-10-23 18:44:15,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 18:44:15,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 18:44:15,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 18:44:15,012 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 18:44:15,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:43:51" (1/3) ... [2018-10-23 18:44:15,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4b897d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:44:15, skipping insertion in model container [2018-10-23 18:44:15,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:55" (2/3) ... [2018-10-23 18:44:15,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4b897d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:44:15, skipping insertion in model container [2018-10-23 18:44:15,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:44:15" (3/3) ... [2018-10-23 18:44:15,016 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label58_false-unreach-call.c [2018-10-23 18:44:15,026 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 18:44:15,039 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 18:44:15,326 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 18:44:15,383 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 18:44:15,384 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 18:44:15,384 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 18:44:15,384 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 18:44:15,384 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 18:44:15,384 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 18:44:15,384 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 18:44:15,385 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 18:44:15,385 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 18:44:15,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-23 18:44:15,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-23 18:44:15,447 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:44:15,448 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:44:15,454 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:44:15,462 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:44:15,463 INFO L82 PathProgramCache]: Analyzing trace with hash 340357962, now seen corresponding path program 1 times [2018-10-23 18:44:15,465 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:44:15,465 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:44:15,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:44:15,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:44:15,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:44:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:44:15,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:44:15,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:44:15,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:44:15,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:44:15,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:44:15,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:44:15,832 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-23 18:44:41,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:44:41,082 INFO L93 Difference]: Finished difference Result 6409 states and 12226 transitions. [2018-10-23 18:44:41,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:44:41,085 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-10-23 18:44:41,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:44:41,144 INFO L225 Difference]: With dead ends: 6409 [2018-10-23 18:44:41,144 INFO L226 Difference]: Without dead ends: 4653 [2018-10-23 18:44:41,155 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:44:41,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4653 states. [2018-10-23 18:44:41,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4653 to 4617. [2018-10-23 18:44:41,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4617 states. [2018-10-23 18:44:41,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 7623 transitions. [2018-10-23 18:44:41,358 INFO L78 Accepts]: Start accepts. Automaton has 4617 states and 7623 transitions. Word has length 14 [2018-10-23 18:44:41,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:44:41,359 INFO L481 AbstractCegarLoop]: Abstraction has 4617 states and 7623 transitions. [2018-10-23 18:44:41,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:44:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 4617 states and 7623 transitions. [2018-10-23 18:44:41,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-10-23 18:44:41,363 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:44:41,363 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:44:41,364 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:44:41,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:44:41,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1653441906, now seen corresponding path program 1 times [2018-10-23 18:44:41,364 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:44:41,364 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:44:41,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:44:41,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:44:41,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:44:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:44:42,355 WARN L179 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-23 18:44:42,618 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-23 18:44:42,747 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:44:42,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:44:42,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 18:44:42,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 18:44:42,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 18:44:42,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 18:44:42,750 INFO L87 Difference]: Start difference. First operand 4617 states and 7623 transitions. Second operand 6 states. [2018-10-23 18:45:22,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:45:22,825 INFO L93 Difference]: Finished difference Result 20192 states and 32413 transitions. [2018-10-23 18:45:22,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 18:45:22,829 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2018-10-23 18:45:22,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:45:22,903 INFO L225 Difference]: With dead ends: 20192 [2018-10-23 18:45:22,904 INFO L226 Difference]: Without dead ends: 15577 [2018-10-23 18:45:22,912 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-23 18:45:22,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15577 states. [2018-10-23 18:45:23,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15577 to 14204. [2018-10-23 18:45:23,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14204 states. [2018-10-23 18:45:23,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14204 states to 14204 states and 19574 transitions. [2018-10-23 18:45:23,188 INFO L78 Accepts]: Start accepts. Automaton has 14204 states and 19574 transitions. Word has length 82 [2018-10-23 18:45:23,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:45:23,189 INFO L481 AbstractCegarLoop]: Abstraction has 14204 states and 19574 transitions. [2018-10-23 18:45:23,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 18:45:23,189 INFO L276 IsEmpty]: Start isEmpty. Operand 14204 states and 19574 transitions. [2018-10-23 18:45:23,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-10-23 18:45:23,210 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:45:23,210 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:45:23,211 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:45:23,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:45:23,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1315430701, now seen corresponding path program 1 times [2018-10-23 18:45:23,211 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:45:23,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:45:23,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:45:23,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:45:23,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:45:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:45:24,169 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-23 18:45:24,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:45:24,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 18:45:24,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 18:45:24,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 18:45:24,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 18:45:24,171 INFO L87 Difference]: Start difference. First operand 14204 states and 19574 transitions. Second operand 7 states. [2018-10-23 18:46:00,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:46:00,145 INFO L93 Difference]: Finished difference Result 40712 states and 55789 transitions. [2018-10-23 18:46:00,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 18:46:00,146 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 290 [2018-10-23 18:46:00,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:46:00,217 INFO L225 Difference]: With dead ends: 40712 [2018-10-23 18:46:00,217 INFO L226 Difference]: Without dead ends: 26510 [2018-10-23 18:46:00,234 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-23 18:46:00,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26510 states. [2018-10-23 18:46:00,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26510 to 23774. [2018-10-23 18:46:00,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23774 states. [2018-10-23 18:46:00,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23774 states to 23774 states and 29481 transitions. [2018-10-23 18:46:00,649 INFO L78 Accepts]: Start accepts. Automaton has 23774 states and 29481 transitions. Word has length 290 [2018-10-23 18:46:00,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:46:00,650 INFO L481 AbstractCegarLoop]: Abstraction has 23774 states and 29481 transitions. [2018-10-23 18:46:00,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 18:46:00,650 INFO L276 IsEmpty]: Start isEmpty. Operand 23774 states and 29481 transitions. [2018-10-23 18:46:00,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-10-23 18:46:00,654 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:46:00,654 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:46:00,654 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:46:00,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:46:00,655 INFO L82 PathProgramCache]: Analyzing trace with hash 557595975, now seen corresponding path program 1 times [2018-10-23 18:46:00,655 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:46:00,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:46:00,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:46:00,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:46:00,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:46:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:46:01,154 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 23 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:46:01,154 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:46:01,155 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 18:46:01,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:46:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:46:01,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:46:01,492 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:46:01,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:46:01,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-23 18:46:01,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 18:46:01,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 18:46:01,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:46:01,531 INFO L87 Difference]: Start difference. First operand 23774 states and 29481 transitions. Second operand 5 states. [2018-10-23 18:46:34,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:46:34,645 INFO L93 Difference]: Finished difference Result 109446 states and 147487 transitions. [2018-10-23 18:46:34,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 18:46:34,645 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 318 [2018-10-23 18:46:34,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:46:34,794 INFO L225 Difference]: With dead ends: 109446 [2018-10-23 18:46:34,795 INFO L226 Difference]: Without dead ends: 76108 [2018-10-23 18:46:34,834 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 18:46:34,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76108 states. [2018-10-23 18:46:36,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76108 to 76005. [2018-10-23 18:46:36,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76005 states. [2018-10-23 18:46:36,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76005 states to 76005 states and 90448 transitions. [2018-10-23 18:46:36,653 INFO L78 Accepts]: Start accepts. Automaton has 76005 states and 90448 transitions. Word has length 318 [2018-10-23 18:46:36,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:46:36,654 INFO L481 AbstractCegarLoop]: Abstraction has 76005 states and 90448 transitions. [2018-10-23 18:46:36,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 18:46:36,654 INFO L276 IsEmpty]: Start isEmpty. Operand 76005 states and 90448 transitions. [2018-10-23 18:46:36,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-10-23 18:46:36,659 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:46:36,660 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:46:36,660 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:46:36,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:46:36,662 INFO L82 PathProgramCache]: Analyzing trace with hash -405657409, now seen corresponding path program 1 times [2018-10-23 18:46:36,662 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:46:36,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:46:36,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:46:36,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:46:36,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:46:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:46:37,277 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 23 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-23 18:46:37,278 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:46:37,278 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 18:46:37,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:46:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:46:37,392 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:46:37,528 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:46:37,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:46:37,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-23 18:46:37,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:46:37,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:46:37,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:46:37,567 INFO L87 Difference]: Start difference. First operand 76005 states and 90448 transitions. Second operand 4 states. [2018-10-23 18:47:02,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:47:02,594 INFO L93 Difference]: Finished difference Result 271198 states and 327262 transitions. [2018-10-23 18:47:02,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:47:02,594 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 328 [2018-10-23 18:47:02,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:47:02,856 INFO L225 Difference]: With dead ends: 271198 [2018-10-23 18:47:02,856 INFO L226 Difference]: Without dead ends: 196561 [2018-10-23 18:47:02,905 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:47:03,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196561 states. [2018-10-23 18:47:04,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196561 to 126540. [2018-10-23 18:47:04,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126540 states. [2018-10-23 18:47:04,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126540 states to 126540 states and 149973 transitions. [2018-10-23 18:47:04,667 INFO L78 Accepts]: Start accepts. Automaton has 126540 states and 149973 transitions. Word has length 328 [2018-10-23 18:47:04,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:47:04,667 INFO L481 AbstractCegarLoop]: Abstraction has 126540 states and 149973 transitions. [2018-10-23 18:47:04,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:47:04,667 INFO L276 IsEmpty]: Start isEmpty. Operand 126540 states and 149973 transitions. [2018-10-23 18:47:04,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2018-10-23 18:47:04,696 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:47:04,697 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:47:04,697 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:47:04,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:47:04,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1765513336, now seen corresponding path program 1 times [2018-10-23 18:47:04,698 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:47:04,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:47:04,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:47:04,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:47:04,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:47:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:47:05,767 WARN L179 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-23 18:47:06,434 WARN L179 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-10-23 18:47:08,031 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 614 proven. 4 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-10-23 18:47:08,032 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:47:08,032 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 18:47:08,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:47:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:47:08,251 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:47:08,555 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2018-10-23 18:47:08,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:47:08,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-23 18:47:08,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 18:47:08,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 18:47:08,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-23 18:47:08,580 INFO L87 Difference]: Start difference. First operand 126540 states and 149973 transitions. Second operand 6 states. [2018-10-23 18:47:41,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:47:41,263 INFO L93 Difference]: Finished difference Result 328218 states and 392967 transitions. [2018-10-23 18:47:41,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 18:47:41,263 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 794 [2018-10-23 18:47:41,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:47:41,494 INFO L225 Difference]: With dead ends: 328218 [2018-10-23 18:47:41,494 INFO L226 Difference]: Without dead ends: 196211 [2018-10-23 18:47:41,578 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 794 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-23 18:47:41,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196211 states. [2018-10-23 18:47:43,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196211 to 155216. [2018-10-23 18:47:43,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155216 states. [2018-10-23 18:47:43,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155216 states to 155216 states and 171550 transitions. [2018-10-23 18:47:43,837 INFO L78 Accepts]: Start accepts. Automaton has 155216 states and 171550 transitions. Word has length 794 [2018-10-23 18:47:43,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:47:43,838 INFO L481 AbstractCegarLoop]: Abstraction has 155216 states and 171550 transitions. [2018-10-23 18:47:43,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 18:47:43,838 INFO L276 IsEmpty]: Start isEmpty. Operand 155216 states and 171550 transitions. [2018-10-23 18:47:43,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1085 [2018-10-23 18:47:43,882 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:47:43,883 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:47:43,884 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:47:43,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:47:43,884 INFO L82 PathProgramCache]: Analyzing trace with hash 510526005, now seen corresponding path program 1 times [2018-10-23 18:47:43,884 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:47:43,884 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:47:43,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:47:43,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:47:43,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY Received shutdown request... [2018-10-23 18:47:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2018-10-23 18:47:44,027 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-23 18:47:44,027 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-23 18:47:44,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:47:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:47:44,303 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:47:44,355 WARN L187 SmtUtils]: Removed 1 from assertion stack [2018-10-23 18:47:44,355 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-23 18:47:44,556 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-23 18:47:44,557 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 18:47:44,562 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 18:47:44,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:47:44 BoogieIcfgContainer [2018-10-23 18:47:44,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 18:47:44,563 INFO L168 Benchmark]: Toolchain (without parser) took 232649.53 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -714.0 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-23 18:47:44,564 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 18:47:44,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3456.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 395.4 MB). Peak memory consumption was 395.4 MB. Max. memory is 7.1 GB. [2018-10-23 18:47:44,567 INFO L168 Benchmark]: Boogie Procedure Inliner took 1147.14 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 877.1 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. [2018-10-23 18:47:44,570 INFO L168 Benchmark]: Boogie Preprocessor took 690.77 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 112.7 MB). Peak memory consumption was 112.7 MB. Max. memory is 7.1 GB. [2018-10-23 18:47:44,571 INFO L168 Benchmark]: RCFGBuilder took 17795.06 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 262.1 MB). Free memory was 2.1 GB in the beginning and 1.5 GB in the end (delta: 515.7 MB). Peak memory consumption was 777.9 MB. Max. memory is 7.1 GB. [2018-10-23 18:47:44,573 INFO L168 Benchmark]: TraceAbstraction took 209553.49 ms. Allocated memory was 2.7 GB in the beginning and 4.0 GB in the end (delta: 1.3 GB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -576.2 MB). Peak memory consumption was 695.2 MB. Max. memory is 7.1 GB. [2018-10-23 18:47:44,580 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3456.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 395.4 MB). Peak memory consumption was 395.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1147.14 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 877.1 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 690.77 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 112.7 MB). Peak memory consumption was 112.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17795.06 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 262.1 MB). Free memory was 2.1 GB in the beginning and 1.5 GB in the end (delta: 515.7 MB). Peak memory consumption was 777.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209553.49 ms. Allocated memory was 2.7 GB in the beginning and 4.0 GB in the end (delta: 1.3 GB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -576.2 MB). Peak memory consumption was 695.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 55). Cancelled while BasicCegarLoop was analyzing trace of length 1085 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 209.1s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 193.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7331 SDtfs, 43864 SDslu, 3622 SDs, 0 SdLazy, 89749 SolverSat, 20650 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 164.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1477 GetRequests, 1444 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155216occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 6.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 115264 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 3266 NumberOfCodeBlocks, 3266 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 3257 ConstructedInterpolants, 0 QuantifiedInterpolants, 6613269 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1755 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 2398/2471 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown