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_label35_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 17:06:30,771 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 17:06:30,773 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 17:06:30,785 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 17:06:30,786 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 17:06:30,787 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 17:06:30,788 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 17:06:30,790 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 17:06:30,792 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 17:06:30,793 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 17:06:30,794 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 17:06:30,794 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 17:06:30,795 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 17:06:30,796 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 17:06:30,797 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 17:06:30,798 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 17:06:30,799 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 17:06:30,801 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 17:06:30,803 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 17:06:30,806 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 17:06:30,808 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 17:06:30,811 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 17:06:30,814 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 17:06:30,827 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 [2018-10-24 17:06:30,856 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 17:06:30,856 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 17:06:30,857 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 17:06:30,858 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 17:06:30,858 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 17:06:30,859 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 17:06:30,859 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 17:06:30,859 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 17:06:30,859 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 17:06:30,860 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 17:06:30,861 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 17:06:30,861 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 17:06:30,861 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 17:06:30,861 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 17:06:30,861 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 17:06:30,862 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 17:06:30,862 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 17:06:30,862 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 17:06:30,862 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 17:06:30,862 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 17:06:30,864 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 17:06:30,864 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 17:06:30,864 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 17:06:30,864 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 17:06:30,864 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 17:06:30,865 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 17:06:30,865 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 17:06:30,865 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 17:06:30,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 17:06:30,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 17:06:30,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 17:06:30,937 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 17:06:30,938 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 17:06:30,938 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label35_true-unreach-call.c [2018-10-24 17:06:30,999 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/928c23bcc/352684a7576d408e9447cbeeb2a010bf/FLAG7f7534f67 [2018-10-24 17:06:31,890 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 17:06:31,891 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label35_true-unreach-call.c [2018-10-24 17:06:31,934 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/928c23bcc/352684a7576d408e9447cbeeb2a010bf/FLAG7f7534f67 [2018-10-24 17:06:31,954 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/928c23bcc/352684a7576d408e9447cbeeb2a010bf [2018-10-24 17:06:31,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 17:06:31,969 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 17:06:31,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 17:06:31,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 17:06:31,976 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 17:06:31,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:06:31" (1/1) ... [2018-10-24 17:06:31,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4621111d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:31, skipping insertion in model container [2018-10-24 17:06:31,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:06:31" (1/1) ... [2018-10-24 17:06:31,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 17:06:32,256 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 17:06:34,276 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:06:34,283 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 17:06:35,530 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:06:35,589 INFO L193 MainTranslator]: Completed translation [2018-10-24 17:06:35,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:35 WrapperNode [2018-10-24 17:06:35,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 17:06:35,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 17:06:35,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 17:06:35,591 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 17:06:35,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:35" (1/1) ... [2018-10-24 17:06:35,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:35" (1/1) ... [2018-10-24 17:06:36,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 17:06:36,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 17:06:36,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 17:06:36,679 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 17:06:36,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:35" (1/1) ... [2018-10-24 17:06:36,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:35" (1/1) ... [2018-10-24 17:06:36,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:35" (1/1) ... [2018-10-24 17:06:36,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:35" (1/1) ... [2018-10-24 17:06:37,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:35" (1/1) ... [2018-10-24 17:06:37,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:35" (1/1) ... [2018-10-24 17:06:37,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:35" (1/1) ... [2018-10-24 17:06:37,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 17:06:37,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 17:06:37,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 17:06:37,486 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 17:06:37,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:35" (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 [2018-10-24 17:06:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 17:06:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 17:06:37,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 17:06:54,473 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 17:06:54,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:06:54 BoogieIcfgContainer [2018-10-24 17:06:54,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 17:06:54,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 17:06:54,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 17:06:54,480 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 17:06:54,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 05:06:31" (1/3) ... [2018-10-24 17:06:54,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef8c800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:06:54, skipping insertion in model container [2018-10-24 17:06:54,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:06:35" (2/3) ... [2018-10-24 17:06:54,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef8c800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:06:54, skipping insertion in model container [2018-10-24 17:06:54,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:06:54" (3/3) ... [2018-10-24 17:06:54,485 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label35_true-unreach-call.c [2018-10-24 17:06:54,494 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 17:06:54,508 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 17:06:54,523 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 17:06:54,581 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 17:06:54,581 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 17:06:54,581 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 17:06:54,582 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 17:06:54,582 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 17:06:54,582 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 17:06:54,582 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 17:06:54,582 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 17:06:54,582 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 17:06:54,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 17:06:54,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-24 17:06:54,655 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:06:54,657 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:06:54,659 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:06:54,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:06:54,665 INFO L82 PathProgramCache]: Analyzing trace with hash 935177138, now seen corresponding path program 1 times [2018-10-24 17:06:54,668 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:06:54,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:06:54,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:06:54,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:06:54,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:06:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:06:55,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:06:55,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:06:55,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:06:55,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:06:55,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:06:55,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:06:55,062 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 17:07:23,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:07:23,471 INFO L93 Difference]: Finished difference Result 6409 states and 12226 transitions. [2018-10-24 17:07:23,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:07:23,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2018-10-24 17:07:23,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:07:23,527 INFO L225 Difference]: With dead ends: 6409 [2018-10-24 17:07:23,527 INFO L226 Difference]: Without dead ends: 4653 [2018-10-24 17:07:23,538 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:07:23,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4653 states. [2018-10-24 17:07:23,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4653 to 4617. [2018-10-24 17:07:23,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4617 states. [2018-10-24 17:07:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 7623 transitions. [2018-10-24 17:07:23,756 INFO L78 Accepts]: Start accepts. Automaton has 4617 states and 7623 transitions. Word has length 40 [2018-10-24 17:07:23,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:07:23,757 INFO L481 AbstractCegarLoop]: Abstraction has 4617 states and 7623 transitions. [2018-10-24 17:07:23,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:07:23,757 INFO L276 IsEmpty]: Start isEmpty. Operand 4617 states and 7623 transitions. [2018-10-24 17:07:23,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-24 17:07:23,762 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:07:23,763 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 17:07:23,763 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:07:23,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:07:23,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1936493654, now seen corresponding path program 1 times [2018-10-24 17:07:23,764 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:07:23,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:07:23,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:07:23,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:07:23,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:07:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:07:24,192 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 17:07:24,853 WARN L179 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-24 17:07:25,343 WARN L179 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-24 17:07:25,496 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:07:25,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:07:25,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 17:07:25,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 17:07:25,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 17:07:25,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:07:25,499 INFO L87 Difference]: Start difference. First operand 4617 states and 7623 transitions. Second operand 6 states. [2018-10-24 17:08:00,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:08:00,597 INFO L93 Difference]: Finished difference Result 20192 states and 32413 transitions. [2018-10-24 17:08:00,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 17:08:00,598 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-10-24 17:08:00,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:08:00,673 INFO L225 Difference]: With dead ends: 20192 [2018-10-24 17:08:00,674 INFO L226 Difference]: Without dead ends: 15577 [2018-10-24 17:08:00,683 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 17:08:00,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15577 states. [2018-10-24 17:08:00,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15577 to 14204. [2018-10-24 17:08:00,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14204 states. [2018-10-24 17:08:00,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14204 states to 14204 states and 19574 transitions. [2018-10-24 17:08:00,948 INFO L78 Accepts]: Start accepts. Automaton has 14204 states and 19574 transitions. Word has length 108 [2018-10-24 17:08:00,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:08:00,948 INFO L481 AbstractCegarLoop]: Abstraction has 14204 states and 19574 transitions. [2018-10-24 17:08:00,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 17:08:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand 14204 states and 19574 transitions. [2018-10-24 17:08:00,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-10-24 17:08:00,957 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:08:00,957 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 17:08:00,958 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:08:00,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:08:00,958 INFO L82 PathProgramCache]: Analyzing trace with hash 7225493, now seen corresponding path program 1 times [2018-10-24 17:08:00,958 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:08:00,958 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:08:00,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:00,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:08:00,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:08:02,078 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-10-24 17:08:02,079 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:08:02,079 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 17:08:02,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 17:08:02,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 17:08:02,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:08:02,081 INFO L87 Difference]: Start difference. First operand 14204 states and 19574 transitions. Second operand 7 states. [2018-10-24 17:08:37,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:08:37,636 INFO L93 Difference]: Finished difference Result 40712 states and 55789 transitions. [2018-10-24 17:08:37,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:08:37,645 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 316 [2018-10-24 17:08:37,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:08:37,735 INFO L225 Difference]: With dead ends: 40712 [2018-10-24 17:08:37,735 INFO L226 Difference]: Without dead ends: 26510 [2018-10-24 17:08:37,753 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 17:08:37,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26510 states. [2018-10-24 17:08:38,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26510 to 23774. [2018-10-24 17:08:38,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23774 states. [2018-10-24 17:08:38,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23774 states to 23774 states and 29481 transitions. [2018-10-24 17:08:38,123 INFO L78 Accepts]: Start accepts. Automaton has 23774 states and 29481 transitions. Word has length 316 [2018-10-24 17:08:38,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:08:38,123 INFO L481 AbstractCegarLoop]: Abstraction has 23774 states and 29481 transitions. [2018-10-24 17:08:38,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 17:08:38,124 INFO L276 IsEmpty]: Start isEmpty. Operand 23774 states and 29481 transitions. [2018-10-24 17:08:38,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-10-24 17:08:38,132 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:08:38,135 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 17:08:38,135 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:08:38,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:08:38,136 INFO L82 PathProgramCache]: Analyzing trace with hash -192675793, now seen corresponding path program 1 times [2018-10-24 17:08:38,136 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:08:38,136 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:08:38,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:38,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:08:38,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:08:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:08:38,583 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 75 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:08:38,583 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:08:38,584 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 [2018-10-24 17:08:38,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:08:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:08:38,724 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:08:38,924 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:08:38,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:08:38,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 17:08:38,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:08:38,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:08:38,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:08:38,948 INFO L87 Difference]: Start difference. First operand 23774 states and 29481 transitions. Second operand 5 states. [2018-10-24 17:09:18,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:09:18,409 INFO L93 Difference]: Finished difference Result 109446 states and 147487 transitions. [2018-10-24 17:09:18,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:09:18,412 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 344 [2018-10-24 17:09:18,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:09:18,558 INFO L225 Difference]: With dead ends: 109446 [2018-10-24 17:09:18,558 INFO L226 Difference]: Without dead ends: 76108 [2018-10-24 17:09:18,599 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:09:18,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76108 states. [2018-10-24 17:09:19,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76108 to 76005. [2018-10-24 17:09:19,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76005 states. [2018-10-24 17:09:20,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76005 states to 76005 states and 90448 transitions. [2018-10-24 17:09:20,077 INFO L78 Accepts]: Start accepts. Automaton has 76005 states and 90448 transitions. Word has length 344 [2018-10-24 17:09:20,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:09:20,078 INFO L481 AbstractCegarLoop]: Abstraction has 76005 states and 90448 transitions. [2018-10-24 17:09:20,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 17:09:20,078 INFO L276 IsEmpty]: Start isEmpty. Operand 76005 states and 90448 transitions. [2018-10-24 17:09:20,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2018-10-24 17:09:20,084 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:09:20,084 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 17:09:20,085 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:09:20,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:09:20,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1105532327, now seen corresponding path program 1 times [2018-10-24 17:09:20,085 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:09:20,086 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:09:20,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:20,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:09:20,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:09:20,629 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 75 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 17:09:20,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:09:20,629 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 [2018-10-24 17:09:20,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:09:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:09:20,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:09:20,839 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:09:20,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:09:20,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 17:09:20,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:09:20,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:09:20,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:09:20,863 INFO L87 Difference]: Start difference. First operand 76005 states and 90448 transitions. Second operand 4 states. [2018-10-24 17:09:46,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:09:46,125 INFO L93 Difference]: Finished difference Result 271198 states and 327262 transitions. [2018-10-24 17:09:46,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:09:46,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 354 [2018-10-24 17:09:46,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:09:46,380 INFO L225 Difference]: With dead ends: 271198 [2018-10-24 17:09:46,380 INFO L226 Difference]: Without dead ends: 196561 [2018-10-24 17:09:46,438 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:09:46,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196561 states. [2018-10-24 17:09:48,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196561 to 126540. [2018-10-24 17:09:48,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126540 states. [2018-10-24 17:09:48,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126540 states to 126540 states and 149973 transitions. [2018-10-24 17:09:48,309 INFO L78 Accepts]: Start accepts. Automaton has 126540 states and 149973 transitions. Word has length 354 [2018-10-24 17:09:48,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:09:48,310 INFO L481 AbstractCegarLoop]: Abstraction has 126540 states and 149973 transitions. [2018-10-24 17:09:48,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:09:48,310 INFO L276 IsEmpty]: Start isEmpty. Operand 126540 states and 149973 transitions. [2018-10-24 17:09:48,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 821 [2018-10-24 17:09:48,344 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:09:48,344 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-10-24 17:09:48,345 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:09:48,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:09:48,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1494182096, now seen corresponding path program 1 times [2018-10-24 17:09:48,346 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:09:48,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:09:48,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:48,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:09:48,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:09:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:09:49,416 WARN L179 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-24 17:09:51,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 655 proven. 4 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2018-10-24 17:09:51,091 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:09:51,091 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 [2018-10-24 17:09:51,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:09:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:09:51,297 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:09:52,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2018-10-24 17:09:52,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:09:52,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-24 17:09:52,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 17:09:52,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 17:09:52,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:09:52,254 INFO L87 Difference]: Start difference. First operand 126540 states and 149973 transitions. Second operand 6 states. [2018-10-24 17:10:27,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:10:27,539 INFO L93 Difference]: Finished difference Result 328218 states and 392967 transitions. [2018-10-24 17:10:27,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:10:27,539 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 820 [2018-10-24 17:10:27,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:10:27,795 INFO L225 Difference]: With dead ends: 328218 [2018-10-24 17:10:27,795 INFO L226 Difference]: Without dead ends: 196211 [2018-10-24 17:10:27,887 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 826 GetRequests, 820 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:10:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196211 states. [2018-10-24 17:10:30,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196211 to 155216. [2018-10-24 17:10:30,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155216 states. [2018-10-24 17:10:30,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155216 states to 155216 states and 171550 transitions. [2018-10-24 17:10:30,531 INFO L78 Accepts]: Start accepts. Automaton has 155216 states and 171550 transitions. Word has length 820 [2018-10-24 17:10:30,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:10:30,532 INFO L481 AbstractCegarLoop]: Abstraction has 155216 states and 171550 transitions. [2018-10-24 17:10:30,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 17:10:30,532 INFO L276 IsEmpty]: Start isEmpty. Operand 155216 states and 171550 transitions. [2018-10-24 17:10:30,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1111 [2018-10-24 17:10:30,584 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:10:30,585 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 17:10:30,585 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:10:30,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:10:30,586 INFO L82 PathProgramCache]: Analyzing trace with hash -334735459, now seen corresponding path program 1 times [2018-10-24 17:10:30,586 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:10:30,586 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:10:30,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:30,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:10:30,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-10-24 17:10:31,049 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:215) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:919) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-24 17:10:31,053 INFO L168 Benchmark]: Toolchain (without parser) took 239085.27 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 2.0 GB in the end (delta: -582.0 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 17:10:31,056 INFO L168 Benchmark]: CDTParser took 0.25 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. [2018-10-24 17:10:31,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3619.89 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: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. [2018-10-24 17:10:31,057 INFO L168 Benchmark]: Boogie Procedure Inliner took 1087.21 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 117.2 MB. Max. memory is 7.1 GB. [2018-10-24 17:10:31,060 INFO L168 Benchmark]: Boogie Preprocessor took 807.07 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: 93.3 MB). Peak memory consumption was 93.3 MB. Max. memory is 7.1 GB. [2018-10-24 17:10:31,061 INFO L168 Benchmark]: RCFGBuilder took 16987.98 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 283.6 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -376.1 MB). Peak memory consumption was 854.5 MB. Max. memory is 7.1 GB. [2018-10-24 17:10:31,062 INFO L168 Benchmark]: TraceAbstraction took 216576.82 ms. Allocated memory was 2.7 GB in the beginning and 4.0 GB in the end (delta: 1.3 GB). Free memory was 2.5 GB in the beginning and 2.0 GB in the end (delta: 465.3 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-24 17:10:31,068 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 3619.89 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: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1087.21 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 117.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 807.07 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: 93.3 MB). Peak memory consumption was 93.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16987.98 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 283.6 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -376.1 MB). Peak memory consumption was 854.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216576.82 ms. Allocated memory was 2.7 GB in the beginning and 4.0 GB in the end (delta: 1.3 GB). Free memory was 2.5 GB in the beginning and 2.0 GB in the end (delta: 465.3 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:215) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown