java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-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_label07_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 21:56:46,698 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 21:56:46,702 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 21:56:46,717 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 21:56:46,718 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 21:56:46,720 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 21:56:46,721 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 21:56:46,724 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 21:56:46,727 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 21:56:46,729 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 21:56:46,730 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 21:56:46,730 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 21:56:46,732 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 21:56:46,733 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 21:56:46,734 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 21:56:46,735 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 21:56:46,736 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 21:56:46,738 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 21:56:46,741 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 21:56:46,743 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 21:56:46,744 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 21:56:46,745 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 21:56:46,747 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-06 21:56:46,755 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 21:56:46,777 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 21:56:46,778 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 21:56:46,778 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 21:56:46,779 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 21:56:46,780 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 21:56:46,780 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 21:56:46,780 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 21:56:46,781 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 21:56:46,781 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 21:56:46,781 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 21:56:46,781 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 21:56:46,782 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 21:56:46,783 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 21:56:46,783 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 21:56:46,783 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 21:56:46,783 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 21:56:46,784 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 21:56:46,784 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 21:56:46,784 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 21:56:46,784 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 21:56:46,784 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 21:56:46,784 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 21:56:46,786 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 21:56:46,786 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 21:56:46,786 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 21:56:46,786 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 21:56:46,787 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 21:56:46,787 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 21:56:46,849 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 21:56:46,866 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 21:56:46,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 21:56:46,871 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 21:56:46,872 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 21:56:46,873 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label07_true-unreach-call.c [2018-11-06 21:56:46,940 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c46046d1/b07a3e08c9824286a3d0fa2e3df23a3f/FLAG01b7034b1 [2018-11-06 21:56:47,875 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 21:56:47,876 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label07_true-unreach-call.c [2018-11-06 21:56:47,919 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c46046d1/b07a3e08c9824286a3d0fa2e3df23a3f/FLAG01b7034b1 [2018-11-06 21:56:47,935 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c46046d1/b07a3e08c9824286a3d0fa2e3df23a3f [2018-11-06 21:56:47,948 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 21:56:47,950 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 21:56:47,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 21:56:47,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 21:56:47,955 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 21:56:47,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:47" (1/1) ... [2018-11-06 21:56:47,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c7ef73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:47, skipping insertion in model container [2018-11-06 21:56:47,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:47" (1/1) ... [2018-11-06 21:56:47,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 21:56:48,203 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 21:56:50,113 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 21:56:50,118 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 21:56:51,217 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 21:56:51,267 INFO L193 MainTranslator]: Completed translation [2018-11-06 21:56:51,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:51 WrapperNode [2018-11-06 21:56:51,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 21:56:51,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 21:56:51,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 21:56:51,269 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 21:56:51,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:51" (1/1) ... [2018-11-06 21:56:51,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:51" (1/1) ... [2018-11-06 21:56:52,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 21:56:52,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 21:56:52,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 21:56:52,421 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 21:56:52,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:51" (1/1) ... [2018-11-06 21:56:52,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:51" (1/1) ... [2018-11-06 21:56:52,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:51" (1/1) ... [2018-11-06 21:56:52,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:51" (1/1) ... [2018-11-06 21:56:52,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:51" (1/1) ... [2018-11-06 21:56:52,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:51" (1/1) ... [2018-11-06 21:56:53,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:51" (1/1) ... [2018-11-06 21:56:53,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 21:56:53,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 21:56:53,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 21:56:53,277 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 21:56:53,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 21:56:53,350 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 21:56:53,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 21:56:53,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 21:57:09,624 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 21:57:09,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:57:09 BoogieIcfgContainer [2018-11-06 21:57:09,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 21:57:09,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 21:57:09,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 21:57:09,630 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 21:57:09,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:56:47" (1/3) ... [2018-11-06 21:57:09,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a9af2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:57:09, skipping insertion in model container [2018-11-06 21:57:09,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:51" (2/3) ... [2018-11-06 21:57:09,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a9af2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:57:09, skipping insertion in model container [2018-11-06 21:57:09,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:57:09" (3/3) ... [2018-11-06 21:57:09,634 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label07_true-unreach-call.c [2018-11-06 21:57:09,645 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 21:57:09,659 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 21:57:09,677 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 21:57:09,742 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 21:57:09,743 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 21:57:09,743 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 21:57:09,743 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 21:57:09,743 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 21:57:09,743 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 21:57:09,743 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 21:57:09,744 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 21:57:09,744 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 21:57:09,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-11-06 21:57:09,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-06 21:57:09,823 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:57:09,825 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:57:09,829 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:57:09,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:57:09,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1515441142, now seen corresponding path program 1 times [2018-11-06 21:57:09,837 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:57:09,838 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:57:09,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:57:09,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:57:09,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:57:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:57:10,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:57:10,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:57:10,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:57:10,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:57:10,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:57:10,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:57:10,365 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-11-06 21:57:30,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:57:30,392 INFO L93 Difference]: Finished difference Result 6419 states and 12268 transitions. [2018-11-06 21:57:30,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:57:30,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2018-11-06 21:57:30,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:57:30,453 INFO L225 Difference]: With dead ends: 6419 [2018-11-06 21:57:30,454 INFO L226 Difference]: Without dead ends: 4663 [2018-11-06 21:57:30,465 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:57:30,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4663 states. [2018-11-06 21:57:30,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4663 to 4573. [2018-11-06 21:57:30,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4573 states. [2018-11-06 21:57:30,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4573 states to 4573 states and 7863 transitions. [2018-11-06 21:57:30,681 INFO L78 Accepts]: Start accepts. Automaton has 4573 states and 7863 transitions. Word has length 62 [2018-11-06 21:57:30,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:57:30,682 INFO L480 AbstractCegarLoop]: Abstraction has 4573 states and 7863 transitions. [2018-11-06 21:57:30,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:57:30,682 INFO L276 IsEmpty]: Start isEmpty. Operand 4573 states and 7863 transitions. [2018-11-06 21:57:30,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-11-06 21:57:30,690 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:57:30,690 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, 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] [2018-11-06 21:57:30,691 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:57:30,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:57:30,691 INFO L82 PathProgramCache]: Analyzing trace with hash -2009892205, now seen corresponding path program 1 times [2018-11-06 21:57:30,692 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:57:30,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:57:30,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:57:30,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:57:30,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:57:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:57:30,953 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:57:30,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:57:30,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:57:30,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:57:30,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:57:30,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:57:30,956 INFO L87 Difference]: Start difference. First operand 4573 states and 7863 transitions. Second operand 4 states. [2018-11-06 21:57:51,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:57:51,221 INFO L93 Difference]: Finished difference Result 17564 states and 30487 transitions. [2018-11-06 21:57:51,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:57:51,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 146 [2018-11-06 21:57:51,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:57:51,288 INFO L225 Difference]: With dead ends: 17564 [2018-11-06 21:57:51,288 INFO L226 Difference]: Without dead ends: 12993 [2018-11-06 21:57:51,297 INFO L604 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 [2018-11-06 21:57:51,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12993 states. [2018-11-06 21:57:51,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12993 to 8672. [2018-11-06 21:57:51,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8672 states. [2018-11-06 21:57:51,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8672 states to 8672 states and 14512 transitions. [2018-11-06 21:57:51,498 INFO L78 Accepts]: Start accepts. Automaton has 8672 states and 14512 transitions. Word has length 146 [2018-11-06 21:57:51,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:57:51,498 INFO L480 AbstractCegarLoop]: Abstraction has 8672 states and 14512 transitions. [2018-11-06 21:57:51,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:57:51,499 INFO L276 IsEmpty]: Start isEmpty. Operand 8672 states and 14512 transitions. [2018-11-06 21:57:51,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-11-06 21:57:51,511 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:57:51,512 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, 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] [2018-11-06 21:57:51,512 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:57:51,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:57:51,513 INFO L82 PathProgramCache]: Analyzing trace with hash -527428546, now seen corresponding path program 1 times [2018-11-06 21:57:51,513 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:57:51,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:57:51,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:57:51,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:57:51,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:57:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:57:51,905 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:57:51,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:57:51,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:57:51,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:57:51,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:57:51,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:57:51,907 INFO L87 Difference]: Start difference. First operand 8672 states and 14512 transitions. Second operand 4 states. [2018-11-06 21:58:09,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:58:09,288 INFO L93 Difference]: Finished difference Result 34022 states and 57203 transitions. [2018-11-06 21:58:09,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:58:09,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2018-11-06 21:58:09,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:58:09,361 INFO L225 Difference]: With dead ends: 34022 [2018-11-06 21:58:09,361 INFO L226 Difference]: Without dead ends: 25352 [2018-11-06 21:58:09,375 INFO L604 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 [2018-11-06 21:58:09,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25352 states. [2018-11-06 21:58:09,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25352 to 25338. [2018-11-06 21:58:09,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25338 states. [2018-11-06 21:58:09,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25338 states to 25338 states and 36988 transitions. [2018-11-06 21:58:09,797 INFO L78 Accepts]: Start accepts. Automaton has 25338 states and 36988 transitions. Word has length 186 [2018-11-06 21:58:09,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:58:09,798 INFO L480 AbstractCegarLoop]: Abstraction has 25338 states and 36988 transitions. [2018-11-06 21:58:09,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:58:09,798 INFO L276 IsEmpty]: Start isEmpty. Operand 25338 states and 36988 transitions. [2018-11-06 21:58:09,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2018-11-06 21:58:09,806 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:58:09,806 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-06 21:58:09,807 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:58:09,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:58:09,808 INFO L82 PathProgramCache]: Analyzing trace with hash -616961647, now seen corresponding path program 1 times [2018-11-06 21:58:09,808 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:58:09,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:58:09,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:58:09,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:58:09,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:58:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:58:10,217 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2018-11-06 21:58:10,218 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:58:10,218 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:58:10,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:58:10,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:58:10,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:58:10,219 INFO L87 Difference]: Start difference. First operand 25338 states and 36988 transitions. Second operand 4 states. [2018-11-06 21:58:25,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:58:25,060 INFO L93 Difference]: Finished difference Result 93031 states and 135352 transitions. [2018-11-06 21:58:25,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:58:25,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 370 [2018-11-06 21:58:25,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:58:25,189 INFO L225 Difference]: With dead ends: 93031 [2018-11-06 21:58:25,190 INFO L226 Difference]: Without dead ends: 67695 [2018-11-06 21:58:25,237 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:58:25,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67695 states. [2018-11-06 21:58:26,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67695 to 64956. [2018-11-06 21:58:26,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64956 states. [2018-11-06 21:58:26,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64956 states to 64956 states and 86129 transitions. [2018-11-06 21:58:26,121 INFO L78 Accepts]: Start accepts. Automaton has 64956 states and 86129 transitions. Word has length 370 [2018-11-06 21:58:26,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:58:26,122 INFO L480 AbstractCegarLoop]: Abstraction has 64956 states and 86129 transitions. [2018-11-06 21:58:26,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:58:26,122 INFO L276 IsEmpty]: Start isEmpty. Operand 64956 states and 86129 transitions. [2018-11-06 21:58:26,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2018-11-06 21:58:26,138 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:58:26,139 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-06 21:58:26,139 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:58:26,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:58:26,139 INFO L82 PathProgramCache]: Analyzing trace with hash -325173188, now seen corresponding path program 1 times [2018-11-06 21:58:26,140 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:58:26,140 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:58:26,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:58:26,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:58:26,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:58:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:58:27,164 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2018-11-06 21:58:27,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:58:27,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:58:27,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:58:27,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:58:27,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:58:27,167 INFO L87 Difference]: Start difference. First operand 64956 states and 86129 transitions. Second operand 4 states. [2018-11-06 21:58:43,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:58:43,766 INFO L93 Difference]: Finished difference Result 235259 states and 309486 transitions. [2018-11-06 21:58:43,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:58:43,767 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 471 [2018-11-06 21:58:43,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:58:43,984 INFO L225 Difference]: With dead ends: 235259 [2018-11-06 21:58:43,985 INFO L226 Difference]: Without dead ends: 170305 [2018-11-06 21:58:44,043 INFO L604 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 [2018-11-06 21:58:44,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170305 states. [2018-11-06 21:58:45,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170305 to 168873. [2018-11-06 21:58:45,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168873 states. [2018-11-06 21:58:45,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168873 states to 168873 states and 202433 transitions. [2018-11-06 21:58:45,816 INFO L78 Accepts]: Start accepts. Automaton has 168873 states and 202433 transitions. Word has length 471 [2018-11-06 21:58:45,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:58:45,817 INFO L480 AbstractCegarLoop]: Abstraction has 168873 states and 202433 transitions. [2018-11-06 21:58:45,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:58:45,817 INFO L276 IsEmpty]: Start isEmpty. Operand 168873 states and 202433 transitions. [2018-11-06 21:58:45,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2018-11-06 21:58:45,862 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:58:45,863 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:58:45,863 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:58:45,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:58:45,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1483854522, now seen corresponding path program 1 times [2018-11-06 21:58:45,864 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:58:45,864 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:58:45,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:58:45,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:58:45,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:58:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:58:47,656 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 363 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-11-06 21:58:47,656 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:58:47,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:58:47,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:58:47,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:58:47,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:58:47,659 INFO L87 Difference]: Start difference. First operand 168873 states and 202433 transitions. Second operand 4 states. [2018-11-06 21:59:03,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:59:03,452 INFO L93 Difference]: Finished difference Result 336375 states and 403486 transitions. [2018-11-06 21:59:03,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:59:03,453 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 950 [2018-11-06 21:59:03,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:59:03,672 INFO L225 Difference]: With dead ends: 336375 [2018-11-06 21:59:03,672 INFO L226 Difference]: Without dead ends: 168870 [2018-11-06 21:59:03,771 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:59:03,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168870 states. [2018-11-06 21:59:05,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168870 to 151103. [2018-11-06 21:59:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151103 states. [2018-11-06 21:59:05,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151103 states to 151103 states and 167472 transitions. [2018-11-06 21:59:05,298 INFO L78 Accepts]: Start accepts. Automaton has 151103 states and 167472 transitions. Word has length 950 [2018-11-06 21:59:05,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:59:05,299 INFO L480 AbstractCegarLoop]: Abstraction has 151103 states and 167472 transitions. [2018-11-06 21:59:05,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:59:05,299 INFO L276 IsEmpty]: Start isEmpty. Operand 151103 states and 167472 transitions. [2018-11-06 21:59:05,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1055 [2018-11-06 21:59:05,327 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:59:05,328 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:59:05,329 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:59:05,329 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:59:05,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1404159583, now seen corresponding path program 1 times [2018-11-06 21:59:05,329 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:59:05,330 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:59:05,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:59:05,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:59:05,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:59:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:59:07,441 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 698 trivial. 0 not checked. [2018-11-06 21:59:07,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:59:07,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:59:07,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 21:59:07,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 21:59:07,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:59:07,444 INFO L87 Difference]: Start difference. First operand 151103 states and 167472 transitions. Second operand 3 states. [2018-11-06 21:59:20,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:59:20,148 INFO L93 Difference]: Finished difference Result 371874 states and 416272 transitions. [2018-11-06 21:59:20,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 21:59:20,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1054 [2018-11-06 21:59:20,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:59:20,429 INFO L225 Difference]: With dead ends: 371874 [2018-11-06 21:59:20,429 INFO L226 Difference]: Without dead ends: 222139 [2018-11-06 21:59:20,510 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:59:20,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222139 states. [2018-11-06 21:59:22,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222139 to 197548. [2018-11-06 21:59:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197548 states. [2018-11-06 21:59:22,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197548 states to 197548 states and 219145 transitions. [2018-11-06 21:59:22,469 INFO L78 Accepts]: Start accepts. Automaton has 197548 states and 219145 transitions. Word has length 1054 [2018-11-06 21:59:22,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:59:22,470 INFO L480 AbstractCegarLoop]: Abstraction has 197548 states and 219145 transitions. [2018-11-06 21:59:22,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 21:59:22,470 INFO L276 IsEmpty]: Start isEmpty. Operand 197548 states and 219145 transitions. [2018-11-06 21:59:22,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1082 [2018-11-06 21:59:22,492 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:59:22,493 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:59:22,493 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:59:22,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:59:22,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1337706722, now seen corresponding path program 1 times [2018-11-06 21:59:22,494 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:59:22,494 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:59:22,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:59:22,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:59:22,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:59:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:59:23,781 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-06 21:59:24,013 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2018-11-06 21:59:24,990 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2018-11-06 21:59:24,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:59:24,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-06 21:59:24,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 21:59:24,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 21:59:24,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-06 21:59:24,993 INFO L87 Difference]: Start difference. First operand 197548 states and 219145 transitions. Second operand 7 states. [2018-11-06 21:59:50,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:59:50,747 INFO L93 Difference]: Finished difference Result 433353 states and 478672 transitions. [2018-11-06 21:59:50,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 21:59:50,748 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1081 [2018-11-06 21:59:50,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:59:51,024 INFO L225 Difference]: With dead ends: 433353 [2018-11-06 21:59:51,024 INFO L226 Difference]: Without dead ends: 237173 [2018-11-06 21:59:51,129 INFO L604 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 [2018-11-06 21:59:51,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237173 states. [2018-11-06 21:59:53,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237173 to 233069. [2018-11-06 21:59:53,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233069 states. [2018-11-06 21:59:54,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233069 states to 233069 states and 255533 transitions. [2018-11-06 21:59:54,063 INFO L78 Accepts]: Start accepts. Automaton has 233069 states and 255533 transitions. Word has length 1081 [2018-11-06 21:59:54,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:59:54,064 INFO L480 AbstractCegarLoop]: Abstraction has 233069 states and 255533 transitions. [2018-11-06 21:59:54,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 21:59:54,064 INFO L276 IsEmpty]: Start isEmpty. Operand 233069 states and 255533 transitions. [2018-11-06 21:59:54,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1110 [2018-11-06 21:59:54,082 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:59:54,083 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:59:54,084 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:59:54,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:59:54,084 INFO L82 PathProgramCache]: Analyzing trace with hash 158576520, now seen corresponding path program 1 times [2018-11-06 21:59:54,084 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:59:54,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:59:54,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:59:54,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:59:54,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:59:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:59:55,262 WARN L179 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-11-06 21:59:55,622 WARN L179 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-11-06 21:59:58,608 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 537 proven. 4 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-11-06 21:59:58,608 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:59:58,609 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 21:59:58,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:59:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:59:58,966 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:00:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 541 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-11-06 22:00:00,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 22:00:00,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 22:00:00,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:00:00,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:00:00,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:00:00,508 INFO L87 Difference]: Start difference. First operand 233069 states and 255533 transitions. Second operand 5 states. [2018-11-06 22:00:23,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:00:23,435 INFO L93 Difference]: Finished difference Result 492093 states and 538575 transitions. [2018-11-06 22:00:23,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 22:00:23,436 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1109 [2018-11-06 22:00:23,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:00:23,747 INFO L225 Difference]: With dead ends: 492093 [2018-11-06 22:00:23,747 INFO L226 Difference]: Without dead ends: 253557 [2018-11-06 22:00:23,890 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1118 GetRequests, 1109 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-06 22:00:24,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253557 states. [2018-11-06 22:00:27,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253557 to 237133. [2018-11-06 22:00:27,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237133 states. [2018-11-06 22:00:27,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237133 states to 237133 states and 250161 transitions. [2018-11-06 22:00:27,363 INFO L78 Accepts]: Start accepts. Automaton has 237133 states and 250161 transitions. Word has length 1109 [2018-11-06 22:00:27,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:00:27,364 INFO L480 AbstractCegarLoop]: Abstraction has 237133 states and 250161 transitions. [2018-11-06 22:00:27,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 22:00:27,364 INFO L276 IsEmpty]: Start isEmpty. Operand 237133 states and 250161 transitions. [2018-11-06 22:00:27,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1221 [2018-11-06 22:00:27,411 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:00:27,412 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:00:27,412 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:00:27,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:00:27,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1225993072, now seen corresponding path program 1 times [2018-11-06 22:00:27,413 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:00:27,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:00:27,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:00:27,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:00:27,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:00:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:00:29,513 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-06 22:00:29,754 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 Received shutdown request... [2018-11-06 22:00:38,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1607 backedges. 699 proven. 504 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2018-11-06 22:00:38,543 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:00:38,543 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 22:00:38,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:00:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:00:38,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:00:38,896 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-06 22:00:39,097 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 22:00:39,098 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 22:00:39,103 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 22:00:39,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:00:39 BoogieIcfgContainer [2018-11-06 22:00:39,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 22:00:39,105 INFO L168 Benchmark]: Toolchain (without parser) took 231156.23 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 3.9 GB in the end (delta: -2.5 GB). Peak memory consumption was 851.4 MB. Max. memory is 7.1 GB. [2018-11-06 22:00:39,106 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:00:39,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3317.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 984.5 MB in the end (delta: 402.5 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. [2018-11-06 22:00:39,108 INFO L168 Benchmark]: Boogie Procedure Inliner took 1151.93 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 842.5 MB). Free memory was 984.5 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2018-11-06 22:00:39,109 INFO L168 Benchmark]: Boogie Preprocessor took 856.08 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 98.8 MB). Peak memory consumption was 98.8 MB. Max. memory is 7.1 GB. [2018-11-06 22:00:39,109 INFO L168 Benchmark]: RCFGBuilder took 16347.89 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 291.5 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -429.4 MB). Peak memory consumption was 835.0 MB. Max. memory is 7.1 GB. [2018-11-06 22:00:39,110 INFO L168 Benchmark]: TraceAbstraction took 209478.13 ms. Allocated memory was 2.7 GB in the beginning and 4.9 GB in the end (delta: 2.3 GB). Free memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 763.8 MB. Max. memory is 7.1 GB. [2018-11-06 22:00:39,116 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3317.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 984.5 MB in the end (delta: 402.5 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1151.93 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 842.5 MB). Free memory was 984.5 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 856.08 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 98.8 MB). Peak memory consumption was 98.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16347.89 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 291.5 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -429.4 MB). Peak memory consumption was 835.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209478.13 ms. Allocated memory was 2.7 GB in the beginning and 4.9 GB in the end (delta: 2.3 GB). Free memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 763.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 199]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 199). Cancelled while BasicCegarLoop was analyzing trace of length 1221 with TraceHistMax 6,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 209.3s OverallTime, 10 OverallIterations, 6 TraceHistogramMax, 168.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12997 SDtfs, 39425 SDslu, 3430 SDs, 0 SdLazy, 81797 SolverSat, 20198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 133.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1154 GetRequests, 1119 SyntacticMatches, 10 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=237133occurred in iteration=9, 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: 13.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 71482 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 6538 NumberOfCodeBlocks, 6538 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 6528 ConstructedInterpolants, 0 QuantifiedInterpolants, 14989477 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1238 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 4905/4909 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown