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_label42_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:46:03,920 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:46:03,922 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:46:03,937 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:46:03,937 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:46:03,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:46:03,939 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:46:03,941 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:46:03,943 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:46:03,944 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:46:03,945 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:46:03,945 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:46:03,946 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:46:03,947 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:46:03,948 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:46:03,949 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:46:03,950 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:46:03,951 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:46:03,953 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:46:03,955 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:46:03,956 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:46:03,957 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:46:03,960 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 14:46:03,968 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 14:46:03,983 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:46:03,984 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:46:03,985 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:46:03,985 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:46:03,985 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:46:03,985 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:46:03,986 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:46:03,986 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:46:03,986 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:46:03,986 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:46:03,986 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:46:03,987 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:46:03,987 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:46:03,987 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:46:03,987 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:46:03,987 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:46:03,988 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:46:03,988 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:46:03,988 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:46:03,988 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:46:03,988 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:46:03,989 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:46:03,989 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:46:03,989 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:46:03,989 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:46:03,989 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:46:03,990 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:46:03,990 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:46:04,032 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:46:04,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:46:04,051 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:46:04,052 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:46:04,053 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:46:04,053 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label42_false-unreach-call.c [2018-10-24 14:46:04,110 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e15a3a44e/a3bad3f6e4a7435e81dcd7b3e13e0752/FLAGeab8a4547 [2018-10-24 14:46:04,961 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:46:04,963 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label42_false-unreach-call.c [2018-10-24 14:46:05,010 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e15a3a44e/a3bad3f6e4a7435e81dcd7b3e13e0752/FLAGeab8a4547 [2018-10-24 14:46:05,034 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e15a3a44e/a3bad3f6e4a7435e81dcd7b3e13e0752 [2018-10-24 14:46:05,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:46:05,050 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:46:05,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:46:05,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:46:05,057 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:46:05,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:46:05" (1/1) ... [2018-10-24 14:46:05,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6628d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:05, skipping insertion in model container [2018-10-24 14:46:05,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:46:05" (1/1) ... [2018-10-24 14:46:05,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:46:05,347 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:46:07,369 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:46:07,375 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:46:08,562 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:46:08,619 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:46:08,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:08 WrapperNode [2018-10-24 14:46:08,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:46:08,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:46:08,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:46:08,621 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:46:08,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:08" (1/1) ... [2018-10-24 14:46:08,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:08" (1/1) ... [2018-10-24 14:46:09,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:46:09,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:46:09,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:46:09,766 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:46:09,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:08" (1/1) ... [2018-10-24 14:46:09,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:08" (1/1) ... [2018-10-24 14:46:09,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:08" (1/1) ... [2018-10-24 14:46:09,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:08" (1/1) ... [2018-10-24 14:46:10,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:08" (1/1) ... [2018-10-24 14:46:10,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:08" (1/1) ... [2018-10-24 14:46:10,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:08" (1/1) ... [2018-10-24 14:46:10,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:46:10,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:46:10,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:46:10,521 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:46:10,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:08" (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 14:46:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:46:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:46:10,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:46:26,715 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:46:26,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:46:26 BoogieIcfgContainer [2018-10-24 14:46:26,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:46:26,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:46:26,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:46:26,720 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:46:26,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:46:05" (1/3) ... [2018-10-24 14:46:26,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51eb5b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:46:26, skipping insertion in model container [2018-10-24 14:46:26,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:08" (2/3) ... [2018-10-24 14:46:26,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51eb5b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:46:26, skipping insertion in model container [2018-10-24 14:46:26,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:46:26" (3/3) ... [2018-10-24 14:46:26,725 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label42_false-unreach-call.c [2018-10-24 14:46:26,735 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:46:26,746 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:46:26,764 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:46:26,815 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:46:26,816 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:46:26,816 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:46:26,816 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:46:26,816 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:46:26,817 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:46:26,817 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:46:26,817 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:46:26,817 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:46:26,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 14:46:26,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-24 14:46:26,879 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:46:26,880 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:46:26,882 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:46:26,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:46:26,889 INFO L82 PathProgramCache]: Analyzing trace with hash -974970054, now seen corresponding path program 1 times [2018-10-24 14:46:26,890 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:46:26,891 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:46:26,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:26,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:46:26,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:46:27,149 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 14:46:27,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:46:27,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:46:27,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:46:27,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:46:27,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:46:27,176 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 14:46:56,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:46:56,387 INFO L93 Difference]: Finished difference Result 6322 states and 12078 transitions. [2018-10-24 14:46:56,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:46:56,389 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-10-24 14:46:56,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:46:56,445 INFO L225 Difference]: With dead ends: 6322 [2018-10-24 14:46:56,446 INFO L226 Difference]: Without dead ends: 4566 [2018-10-24 14:46:56,457 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 14:46:56,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4566 states. [2018-10-24 14:46:56,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4566 to 4562. [2018-10-24 14:46:56,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4562 states. [2018-10-24 14:46:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4562 states to 4562 states and 7763 transitions. [2018-10-24 14:46:56,678 INFO L78 Accepts]: Start accepts. Automaton has 4562 states and 7763 transitions. Word has length 10 [2018-10-24 14:46:56,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:46:56,679 INFO L481 AbstractCegarLoop]: Abstraction has 4562 states and 7763 transitions. [2018-10-24 14:46:56,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:46:56,679 INFO L276 IsEmpty]: Start isEmpty. Operand 4562 states and 7763 transitions. [2018-10-24 14:46:56,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-10-24 14:46:56,683 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:46:56,683 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:46:56,684 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:46:56,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:46:56,684 INFO L82 PathProgramCache]: Analyzing trace with hash -378576078, now seen corresponding path program 1 times [2018-10-24 14:46:56,684 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:46:56,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:46:56,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:56,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:46:56,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:46:57,130 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:46:57,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:46:57,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:46:57,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:46:57,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:46:57,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:46:57,135 INFO L87 Difference]: Start difference. First operand 4562 states and 7763 transitions. Second operand 4 states. [2018-10-24 14:47:22,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:47:22,629 INFO L93 Difference]: Finished difference Result 17536 states and 30099 transitions. [2018-10-24 14:47:22,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:47:22,630 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2018-10-24 14:47:22,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:47:22,695 INFO L225 Difference]: With dead ends: 17536 [2018-10-24 14:47:22,695 INFO L226 Difference]: Without dead ends: 12976 [2018-10-24 14:47:22,704 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:47:22,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12976 states. [2018-10-24 14:47:22,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12976 to 8660. [2018-10-24 14:47:22,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8660 states. [2018-10-24 14:47:22,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8660 states to 8660 states and 14380 transitions. [2018-10-24 14:47:22,890 INFO L78 Accepts]: Start accepts. Automaton has 8660 states and 14380 transitions. Word has length 80 [2018-10-24 14:47:22,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:47:22,891 INFO L481 AbstractCegarLoop]: Abstraction has 8660 states and 14380 transitions. [2018-10-24 14:47:22,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:47:22,891 INFO L276 IsEmpty]: Start isEmpty. Operand 8660 states and 14380 transitions. [2018-10-24 14:47:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-10-24 14:47:22,895 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:47:22,896 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:47:22,896 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:47:22,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:47:22,896 INFO L82 PathProgramCache]: Analyzing trace with hash -188588475, now seen corresponding path program 1 times [2018-10-24 14:47:22,897 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:47:22,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:47:22,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:22,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:22,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:23,126 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:47:23,126 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:47:23,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:47:23,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:47:23,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:47:23,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:47:23,128 INFO L87 Difference]: Start difference. First operand 8660 states and 14380 transitions. Second operand 4 states. [2018-10-24 14:47:41,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:47:41,730 INFO L93 Difference]: Finished difference Result 33814 states and 56473 transitions. [2018-10-24 14:47:41,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:47:41,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2018-10-24 14:47:41,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:47:41,823 INFO L225 Difference]: With dead ends: 33814 [2018-10-24 14:47:41,823 INFO L226 Difference]: Without dead ends: 25156 [2018-10-24 14:47:41,843 INFO L605 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 [2018-10-24 14:47:41,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25156 states. [2018-10-24 14:47:42,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25156 to 16865. [2018-10-24 14:47:42,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16865 states. [2018-10-24 14:47:42,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16865 states to 16865 states and 24314 transitions. [2018-10-24 14:47:42,428 INFO L78 Accepts]: Start accepts. Automaton has 16865 states and 24314 transitions. Word has length 102 [2018-10-24 14:47:42,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:47:42,429 INFO L481 AbstractCegarLoop]: Abstraction has 16865 states and 24314 transitions. [2018-10-24 14:47:42,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:47:42,430 INFO L276 IsEmpty]: Start isEmpty. Operand 16865 states and 24314 transitions. [2018-10-24 14:47:42,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-24 14:47:42,440 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:47:42,440 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:47:42,440 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:47:42,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:47:42,444 INFO L82 PathProgramCache]: Analyzing trace with hash -924559047, now seen corresponding path program 1 times [2018-10-24 14:47:42,446 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:47:42,447 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:47:42,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:42,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:42,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:42,658 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:47:42,658 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:47:42,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:47:42,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:47:42,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:47:42,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:47:42,660 INFO L87 Difference]: Start difference. First operand 16865 states and 24314 transitions. Second operand 4 states. [2018-10-24 14:48:03,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:03,919 INFO L93 Difference]: Finished difference Result 65426 states and 94868 transitions. [2018-10-24 14:48:03,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:48:03,919 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2018-10-24 14:48:03,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:04,012 INFO L225 Difference]: With dead ends: 65426 [2018-10-24 14:48:04,012 INFO L226 Difference]: Without dead ends: 48563 [2018-10-24 14:48:04,038 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 14:48:04,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48563 states. [2018-10-24 14:48:04,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48563 to 48550. [2018-10-24 14:48:04,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48550 states. [2018-10-24 14:48:04,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48550 states to 48550 states and 63472 transitions. [2018-10-24 14:48:04,662 INFO L78 Accepts]: Start accepts. Automaton has 48550 states and 63472 transitions. Word has length 111 [2018-10-24 14:48:04,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:48:04,662 INFO L481 AbstractCegarLoop]: Abstraction has 48550 states and 63472 transitions. [2018-10-24 14:48:04,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:48:04,662 INFO L276 IsEmpty]: Start isEmpty. Operand 48550 states and 63472 transitions. [2018-10-24 14:48:04,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-10-24 14:48:04,669 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:04,670 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:48:04,670 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:04,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:04,670 INFO L82 PathProgramCache]: Analyzing trace with hash 865006540, now seen corresponding path program 1 times [2018-10-24 14:48:04,670 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:04,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:04,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:04,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:04,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:05,081 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-24 14:48:05,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:48:05,082 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:48:05,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:48:05,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:48:05,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:48:05,083 INFO L87 Difference]: Start difference. First operand 48550 states and 63472 transitions. Second operand 4 states. [2018-10-24 14:48:25,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:25,481 INFO L93 Difference]: Finished difference Result 112127 states and 144774 transitions. [2018-10-24 14:48:25,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:48:25,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 173 [2018-10-24 14:48:25,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:25,589 INFO L225 Difference]: With dead ends: 112127 [2018-10-24 14:48:25,589 INFO L226 Difference]: Without dead ends: 63579 [2018-10-24 14:48:25,642 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:48:25,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63579 states. [2018-10-24 14:48:26,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63579 to 63570. [2018-10-24 14:48:26,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63570 states. [2018-10-24 14:48:26,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63570 states to 63570 states and 77358 transitions. [2018-10-24 14:48:26,261 INFO L78 Accepts]: Start accepts. Automaton has 63570 states and 77358 transitions. Word has length 173 [2018-10-24 14:48:26,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:48:26,262 INFO L481 AbstractCegarLoop]: Abstraction has 63570 states and 77358 transitions. [2018-10-24 14:48:26,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:48:26,262 INFO L276 IsEmpty]: Start isEmpty. Operand 63570 states and 77358 transitions. [2018-10-24 14:48:26,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2018-10-24 14:48:26,273 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:26,273 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:48:26,273 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:26,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:26,274 INFO L82 PathProgramCache]: Analyzing trace with hash -233359334, now seen corresponding path program 1 times [2018-10-24 14:48:26,274 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:26,274 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:26,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:26,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:26,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:26,767 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 14:48:26,990 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-24 14:48:27,116 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2018-10-24 14:48:27,459 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-24 14:48:27,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:48:27,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 14:48:27,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:48:27,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:48:27,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:48:27,461 INFO L87 Difference]: Start difference. First operand 63570 states and 77358 transitions. Second operand 7 states. [2018-10-24 14:48:56,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:56,045 INFO L93 Difference]: Finished difference Result 147644 states and 176623 transitions. [2018-10-24 14:48:56,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:48:56,046 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 438 [2018-10-24 14:48:56,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:56,147 INFO L225 Difference]: With dead ends: 147644 [2018-10-24 14:48:56,147 INFO L226 Difference]: Without dead ends: 84076 [2018-10-24 14:48:56,189 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:48:56,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84076 states. [2018-10-24 14:48:56,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84076 to 79972. [2018-10-24 14:48:56,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79972 states. [2018-10-24 14:48:56,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79972 states to 79972 states and 94536 transitions. [2018-10-24 14:48:56,950 INFO L78 Accepts]: Start accepts. Automaton has 79972 states and 94536 transitions. Word has length 438 [2018-10-24 14:48:56,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:48:56,951 INFO L481 AbstractCegarLoop]: Abstraction has 79972 states and 94536 transitions. [2018-10-24 14:48:56,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:48:56,951 INFO L276 IsEmpty]: Start isEmpty. Operand 79972 states and 94536 transitions. [2018-10-24 14:48:56,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2018-10-24 14:48:56,961 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:56,961 INFO L375 BasicCegarLoop]: trace histogram [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, 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 14:48:56,961 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:56,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:56,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1762657076, now seen corresponding path program 1 times [2018-10-24 14:48:56,962 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:56,962 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:56,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:56,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:56,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:57,383 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2018-10-24 14:48:57,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:48:57,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:48:57,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:48:57,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:48:57,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:48:57,385 INFO L87 Difference]: Start difference. First operand 79972 states and 94536 transitions. Second operand 4 states. [2018-10-24 14:49:21,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:49:21,054 INFO L93 Difference]: Finished difference Result 268006 states and 317619 transitions. [2018-10-24 14:49:21,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:49:21,057 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 466 [2018-10-24 14:49:21,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:49:21,265 INFO L225 Difference]: With dead ends: 268006 [2018-10-24 14:49:21,265 INFO L226 Difference]: Without dead ends: 188036 [2018-10-24 14:49:21,340 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 14:49:21,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188036 states. [2018-10-24 14:49:23,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188036 to 179710. [2018-10-24 14:49:23,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179710 states. [2018-10-24 14:49:23,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179710 states to 179710 states and 206832 transitions. [2018-10-24 14:49:23,578 INFO L78 Accepts]: Start accepts. Automaton has 179710 states and 206832 transitions. Word has length 466 [2018-10-24 14:49:23,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:49:23,579 INFO L481 AbstractCegarLoop]: Abstraction has 179710 states and 206832 transitions. [2018-10-24 14:49:23,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:49:23,579 INFO L276 IsEmpty]: Start isEmpty. Operand 179710 states and 206832 transitions. [2018-10-24 14:49:23,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2018-10-24 14:49:23,593 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:49:23,594 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 14:49:23,595 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:49:23,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:49:23,595 INFO L82 PathProgramCache]: Analyzing trace with hash 233618855, now seen corresponding path program 1 times [2018-10-24 14:49:23,595 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:49:23,595 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:49:23,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:23,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:23,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:24,799 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-10-24 14:49:24,800 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:49:24,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:49:24,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:49:24,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:49:24,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:49:24,802 INFO L87 Difference]: Start difference. First operand 179710 states and 206832 transitions. Second operand 4 states. [2018-10-24 14:49:42,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:49:42,381 INFO L93 Difference]: Finished difference Result 358051 states and 411989 transitions. [2018-10-24 14:49:42,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:49:42,382 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 889 [2018-10-24 14:49:42,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:49:42,603 INFO L225 Difference]: With dead ends: 358051 [2018-10-24 14:49:42,603 INFO L226 Difference]: Without dead ends: 178343 [2018-10-24 14:49:42,672 INFO L605 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 [2018-10-24 14:49:42,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178343 states. [2018-10-24 14:49:43,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178343 to 164676. [2018-10-24 14:49:43,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164676 states. [2018-10-24 14:49:44,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164676 states to 164676 states and 182106 transitions. [2018-10-24 14:49:44,114 INFO L78 Accepts]: Start accepts. Automaton has 164676 states and 182106 transitions. Word has length 889 [2018-10-24 14:49:44,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:49:44,116 INFO L481 AbstractCegarLoop]: Abstraction has 164676 states and 182106 transitions. [2018-10-24 14:49:44,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:49:44,116 INFO L276 IsEmpty]: Start isEmpty. Operand 164676 states and 182106 transitions. [2018-10-24 14:49:44,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 972 [2018-10-24 14:49:44,137 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:49:44,138 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:44,139 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:49:44,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:49:44,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1974178619, now seen corresponding path program 1 times [2018-10-24 14:49:44,139 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:49:44,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:49:44,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:44,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:44,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:46,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 702 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-10-24 14:49:46,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:49:46,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:49:46,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:49:46,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:49:46,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:49:46,201 INFO L87 Difference]: Start difference. First operand 164676 states and 182106 transitions. Second operand 5 states. Received shutdown request... [2018-10-24 14:50:07,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:50:07,643 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:50:07,649 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:50:07,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:50:07 BoogieIcfgContainer [2018-10-24 14:50:07,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:50:07,650 INFO L168 Benchmark]: Toolchain (without parser) took 242602.07 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 393.4 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-24 14:50:07,652 INFO L168 Benchmark]: CDTParser took 0.22 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 14:50:07,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3567.18 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: 401.7 MB). Peak memory consumption was 401.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:50:07,653 INFO L168 Benchmark]: Boogie Procedure Inliner took 1144.45 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 862.5 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:50:07,654 INFO L168 Benchmark]: Boogie Preprocessor took 754.84 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: 106.9 MB). Peak memory consumption was 106.9 MB. Max. memory is 7.1 GB. [2018-10-24 14:50:07,654 INFO L168 Benchmark]: RCFGBuilder took 16195.34 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 280.5 MB). Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 493.2 MB). Peak memory consumption was 773.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:50:07,655 INFO L168 Benchmark]: TraceAbstraction took 220932.45 ms. Allocated memory was 2.7 GB in the beginning and 3.5 GB in the end (delta: 846.2 MB). Free memory was 1.6 GB in the beginning and 1.0 GB in the end (delta: 545.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-24 14:50:07,661 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3567.18 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: 401.7 MB). Peak memory consumption was 401.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1144.45 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 862.5 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 754.84 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: 106.9 MB). Peak memory consumption was 106.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16195.34 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 280.5 MB). Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 493.2 MB). Peak memory consumption was 773.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 220932.45 ms. Allocated memory was 2.7 GB in the beginning and 3.5 GB in the end (delta: 846.2 MB). Free memory was 1.6 GB in the beginning and 1.0 GB in the end (delta: 545.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 43). Cancelled while BasicCegarLoop was constructing difference of abstraction (164676states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (255522 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 220.8s OverallTime, 9 OverallIterations, 6 TraceHistogramMax, 207.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11459 SDtfs, 41881 SDslu, 3621 SDs, 0 SdLazy, 87925 SolverSat, 20855 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 176.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179710occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 6.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 38730 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 3240 NumberOfCodeBlocks, 3240 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 3231 ConstructedInterpolants, 0 QuantifiedInterpolants, 3943826 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 2078/2078 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown