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_label06_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:06:23,747 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:06:23,750 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:06:23,768 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:06:23,768 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:06:23,769 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:06:23,770 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:06:23,772 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:06:23,773 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:06:23,774 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:06:23,775 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:06:23,775 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:06:23,776 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:06:23,777 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:06:23,778 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:06:23,779 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:06:23,780 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:06:23,782 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:06:23,784 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:06:23,786 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:06:23,787 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:06:23,788 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:06:23,790 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-26 22:06:23,807 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 [2018-10-26 22:06:23,838 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:06:23,838 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:06:23,839 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:06:23,839 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 22:06:23,843 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 22:06:23,843 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 22:06:23,843 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 22:06:23,843 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:06:23,843 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:06:23,844 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:06:23,844 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:06:23,844 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:06:23,844 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:06:23,844 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:06:23,845 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:06:23,845 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:06:23,845 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:06:23,845 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:06:23,845 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:06:23,846 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:06:23,847 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:06:23,847 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:06:23,847 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:06:23,847 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 22:06:23,847 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:06:23,848 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:06:23,848 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:06:23,848 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 22:06:23,911 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:06:23,924 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:06:23,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:06:23,931 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:06:23,932 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:06:23,933 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label06_true-unreach-call.c [2018-10-26 22:06:24,001 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/96325f5dd/65b243fd0fba431aa43d7c2c19a41cd9/FLAG4297c80b0 [2018-10-26 22:06:24,878 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:06:24,879 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label06_true-unreach-call.c [2018-10-26 22:06:24,921 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/96325f5dd/65b243fd0fba431aa43d7c2c19a41cd9/FLAG4297c80b0 [2018-10-26 22:06:24,936 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/96325f5dd/65b243fd0fba431aa43d7c2c19a41cd9 [2018-10-26 22:06:24,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:06:24,948 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 22:06:24,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:06:24,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:06:24,954 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:06:24,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:06:24" (1/1) ... [2018-10-26 22:06:24,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4621111d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:24, skipping insertion in model container [2018-10-26 22:06:24,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:06:24" (1/1) ... [2018-10-26 22:06:24,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:06:25,232 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:06:27,047 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:06:27,052 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:06:28,106 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:06:28,157 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:06:28,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:28 WrapperNode [2018-10-26 22:06:28,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:06:28,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:06:28,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:06:28,159 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:06:28,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:28" (1/1) ... [2018-10-26 22:06:28,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:28" (1/1) ... [2018-10-26 22:06:29,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:06:29,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:06:29,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:06:29,293 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:06:29,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:28" (1/1) ... [2018-10-26 22:06:29,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:28" (1/1) ... [2018-10-26 22:06:29,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:28" (1/1) ... [2018-10-26 22:06:29,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:28" (1/1) ... [2018-10-26 22:06:29,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:28" (1/1) ... [2018-10-26 22:06:29,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:28" (1/1) ... [2018-10-26 22:06:29,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:28" (1/1) ... [2018-10-26 22:06:30,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:06:30,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:06:30,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:06:30,051 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:06:30,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:28" (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 [2018-10-26 22:06:30,122 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 22:06:30,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:06:30,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:06:47,944 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:06:47,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:06:47 BoogieIcfgContainer [2018-10-26 22:06:47,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:06:47,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:06:47,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:06:47,950 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:06:47,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:06:24" (1/3) ... [2018-10-26 22:06:47,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef8c800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:06:47, skipping insertion in model container [2018-10-26 22:06:47,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:28" (2/3) ... [2018-10-26 22:06:47,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef8c800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:06:47, skipping insertion in model container [2018-10-26 22:06:47,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:06:47" (3/3) ... [2018-10-26 22:06:47,954 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label06_true-unreach-call.c [2018-10-26 22:06:47,965 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:06:47,976 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:06:47,995 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:06:48,052 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:06:48,053 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:06:48,053 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:06:48,054 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:06:48,054 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:06:48,054 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:06:48,054 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:06:48,054 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:06:48,054 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:06:48,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-26 22:06:48,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-10-26 22:06:48,114 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:06:48,116 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] [2018-10-26 22:06:48,118 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:06:48,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:06:48,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1306950314, now seen corresponding path program 1 times [2018-10-26 22:06:48,127 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:06:48,128 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:06:48,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:06:48,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:06:48,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:06:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:06:48,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:06:48,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:06:48,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:06:48,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:06:48,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:06:48,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:06:48,695 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-26 22:07:14,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:14,420 INFO L93 Difference]: Finished difference Result 6324 states and 12081 transitions. [2018-10-26 22:07:14,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:07:14,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2018-10-26 22:07:14,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:14,482 INFO L225 Difference]: With dead ends: 6324 [2018-10-26 22:07:14,482 INFO L226 Difference]: Without dead ends: 4568 [2018-10-26 22:07:14,493 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 [2018-10-26 22:07:14,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4568 states. [2018-10-26 22:07:14,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4568 to 4563. [2018-10-26 22:07:14,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4563 states. [2018-10-26 22:07:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4563 states to 4563 states and 7487 transitions. [2018-10-26 22:07:14,707 INFO L78 Accepts]: Start accepts. Automaton has 4563 states and 7487 transitions. Word has length 55 [2018-10-26 22:07:14,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:14,708 INFO L481 AbstractCegarLoop]: Abstraction has 4563 states and 7487 transitions. [2018-10-26 22:07:14,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:07:14,708 INFO L276 IsEmpty]: Start isEmpty. Operand 4563 states and 7487 transitions. [2018-10-26 22:07:14,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-26 22:07:14,720 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:14,720 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:14,721 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:14,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:14,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1408201555, now seen corresponding path program 1 times [2018-10-26 22:07:14,722 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:07:14,722 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:07:14,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:14,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:14,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:15,143 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:15,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:15,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:07:15,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:07:15,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:07:15,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:07:15,148 INFO L87 Difference]: Start difference. First operand 4563 states and 7487 transitions. Second operand 4 states. [2018-10-26 22:07:41,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:07:41,838 INFO L93 Difference]: Finished difference Result 17544 states and 29003 transitions. [2018-10-26 22:07:41,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:07:41,839 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 133 [2018-10-26 22:07:41,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:07:41,906 INFO L225 Difference]: With dead ends: 17544 [2018-10-26 22:07:41,907 INFO L226 Difference]: Without dead ends: 12983 [2018-10-26 22:07:41,915 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 [2018-10-26 22:07:41,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12983 states. [2018-10-26 22:07:42,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12983 to 8662. [2018-10-26 22:07:42,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8662 states. [2018-10-26 22:07:42,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8662 states to 8662 states and 13841 transitions. [2018-10-26 22:07:42,121 INFO L78 Accepts]: Start accepts. Automaton has 8662 states and 13841 transitions. Word has length 133 [2018-10-26 22:07:42,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:07:42,121 INFO L481 AbstractCegarLoop]: Abstraction has 8662 states and 13841 transitions. [2018-10-26 22:07:42,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:07:42,122 INFO L276 IsEmpty]: Start isEmpty. Operand 8662 states and 13841 transitions. [2018-10-26 22:07:42,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-26 22:07:42,129 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:07:42,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:07:42,134 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:07:42,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:07:42,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1752615795, now seen corresponding path program 1 times [2018-10-26 22:07:42,135 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:07:42,135 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:07:42,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:42,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:42,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:07:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:42,470 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:07:42,471 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:07:42,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:07:42,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:07:42,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:07:42,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:07:42,472 INFO L87 Difference]: Start difference. First operand 8662 states and 13841 transitions. Second operand 4 states. [2018-10-26 22:08:07,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:08:07,543 INFO L93 Difference]: Finished difference Result 33991 states and 54526 transitions. [2018-10-26 22:08:07,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:08:07,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2018-10-26 22:08:07,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:08:07,620 INFO L225 Difference]: With dead ends: 33991 [2018-10-26 22:08:07,620 INFO L226 Difference]: Without dead ends: 25331 [2018-10-26 22:08:07,632 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 [2018-10-26 22:08:07,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25331 states. [2018-10-26 22:08:08,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25331 to 25321. [2018-10-26 22:08:08,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25321 states. [2018-10-26 22:08:08,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25321 states to 25321 states and 34467 transitions. [2018-10-26 22:08:08,079 INFO L78 Accepts]: Start accepts. Automaton has 25321 states and 34467 transitions. Word has length 153 [2018-10-26 22:08:08,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:08:08,080 INFO L481 AbstractCegarLoop]: Abstraction has 25321 states and 34467 transitions. [2018-10-26 22:08:08,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:08:08,080 INFO L276 IsEmpty]: Start isEmpty. Operand 25321 states and 34467 transitions. [2018-10-26 22:08:08,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-10-26 22:08:08,083 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:08:08,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:08:08,084 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:08:08,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:08:08,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1710485834, now seen corresponding path program 1 times [2018-10-26 22:08:08,085 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:08:08,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:08:08,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:08:08,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:08:08,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:08:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:08:08,653 WARN L179 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-26 22:08:08,813 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-26 22:08:09,012 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 4 [2018-10-26 22:08:09,098 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:08:09,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:08:09,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 22:08:09,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:08:09,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:08:09,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:08:09,100 INFO L87 Difference]: Start difference. First operand 25321 states and 34467 transitions. Second operand 6 states. [2018-10-26 22:08:43,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:08:43,296 INFO L93 Difference]: Finished difference Result 82151 states and 109854 transitions. [2018-10-26 22:08:43,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 22:08:43,297 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2018-10-26 22:08:43,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:08:43,425 INFO L225 Difference]: With dead ends: 82151 [2018-10-26 22:08:43,425 INFO L226 Difference]: Without dead ends: 56832 [2018-10-26 22:08:43,452 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-26 22:08:43,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56832 states. [2018-10-26 22:08:44,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56832 to 55390. [2018-10-26 22:08:44,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55390 states. [2018-10-26 22:08:44,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55390 states to 55390 states and 72762 transitions. [2018-10-26 22:08:44,176 INFO L78 Accepts]: Start accepts. Automaton has 55390 states and 72762 transitions. Word has length 160 [2018-10-26 22:08:44,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:08:44,177 INFO L481 AbstractCegarLoop]: Abstraction has 55390 states and 72762 transitions. [2018-10-26 22:08:44,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:08:44,177 INFO L276 IsEmpty]: Start isEmpty. Operand 55390 states and 72762 transitions. [2018-10-26 22:08:44,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2018-10-26 22:08:44,182 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:08:44,183 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:08:44,183 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:08:44,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:08:44,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1479259088, now seen corresponding path program 1 times [2018-10-26 22:08:44,184 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:08:44,185 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:08:44,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:08:44,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:08:44,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:08:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:08:44,748 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-10-26 22:08:44,749 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:08:44,749 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:08:44,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:08:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:08:44,929 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:08:45,052 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:08:45,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 22:08:45,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-26 22:08:45,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:08:45,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:08:45,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:08:45,088 INFO L87 Difference]: Start difference. First operand 55390 states and 72762 transitions. Second operand 4 states. [2018-10-26 22:09:07,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:09:07,444 INFO L93 Difference]: Finished difference Result 190169 states and 250350 transitions. [2018-10-26 22:09:07,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:09:07,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 291 [2018-10-26 22:09:07,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:09:07,639 INFO L225 Difference]: With dead ends: 190169 [2018-10-26 22:09:07,639 INFO L226 Difference]: Without dead ends: 134781 [2018-10-26 22:09:07,706 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:09:07,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134781 states. [2018-10-26 22:09:09,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134781 to 96376. [2018-10-26 22:09:09,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96376 states. [2018-10-26 22:09:10,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96376 states to 96376 states and 117972 transitions. [2018-10-26 22:09:10,078 INFO L78 Accepts]: Start accepts. Automaton has 96376 states and 117972 transitions. Word has length 291 [2018-10-26 22:09:10,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:09:10,079 INFO L481 AbstractCegarLoop]: Abstraction has 96376 states and 117972 transitions. [2018-10-26 22:09:10,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:09:10,079 INFO L276 IsEmpty]: Start isEmpty. Operand 96376 states and 117972 transitions. [2018-10-26 22:09:10,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2018-10-26 22:09:10,089 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:09:10,089 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:09:10,090 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:09:10,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:09:10,090 INFO L82 PathProgramCache]: Analyzing trace with hash -244394191, now seen corresponding path program 1 times [2018-10-26 22:09:10,090 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:09:10,091 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:09:10,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:09:10,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:09:10,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:09:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:09:10,727 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:09:10,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:09:10,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 22:09:10,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:09:10,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:09:10,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:09:10,731 INFO L87 Difference]: Start difference. First operand 96376 states and 117972 transitions. Second operand 4 states. [2018-10-26 22:09:29,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:09:29,967 INFO L93 Difference]: Finished difference Result 217335 states and 267284 transitions. [2018-10-26 22:09:29,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:09:29,968 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 452 [2018-10-26 22:09:29,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:09:30,110 INFO L225 Difference]: With dead ends: 217335 [2018-10-26 22:09:30,110 INFO L226 Difference]: Without dead ends: 120961 [2018-10-26 22:09:30,171 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:09:30,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120961 states. [2018-10-26 22:09:31,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120961 to 120950. [2018-10-26 22:09:31,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120950 states. [2018-10-26 22:09:31,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120950 states to 120950 states and 138744 transitions. [2018-10-26 22:09:31,585 INFO L78 Accepts]: Start accepts. Automaton has 120950 states and 138744 transitions. Word has length 452 [2018-10-26 22:09:31,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:09:31,586 INFO L481 AbstractCegarLoop]: Abstraction has 120950 states and 138744 transitions. [2018-10-26 22:09:31,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:09:31,586 INFO L276 IsEmpty]: Start isEmpty. Operand 120950 states and 138744 transitions. [2018-10-26 22:09:31,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 913 [2018-10-26 22:09:31,623 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:09:31,624 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:09:31,625 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:09:31,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:09:31,625 INFO L82 PathProgramCache]: Analyzing trace with hash -49250025, now seen corresponding path program 1 times [2018-10-26 22:09:31,625 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:09:31,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:09:31,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:09:31,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:09:31,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:09:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:09:32,412 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-26 22:09:33,693 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-10-26 22:09:33,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:09:33,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 22:09:33,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:09:33,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:09:33,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:09:33,695 INFO L87 Difference]: Start difference. First operand 120950 states and 138744 transitions. Second operand 4 states. [2018-10-26 22:09:53,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:09:53,065 INFO L93 Difference]: Finished difference Result 271965 states and 313762 transitions. [2018-10-26 22:09:53,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:09:53,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 912 [2018-10-26 22:09:53,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:09:53,245 INFO L225 Difference]: With dead ends: 271965 [2018-10-26 22:09:53,245 INFO L226 Difference]: Without dead ends: 151017 [2018-10-26 22:09:53,304 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 [2018-10-26 22:09:53,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151017 states. [2018-10-26 22:09:54,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151017 to 140074. [2018-10-26 22:09:54,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140074 states. [2018-10-26 22:09:54,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140074 states to 140074 states and 156812 transitions. [2018-10-26 22:09:54,630 INFO L78 Accepts]: Start accepts. Automaton has 140074 states and 156812 transitions. Word has length 912 [2018-10-26 22:09:54,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:09:54,632 INFO L481 AbstractCegarLoop]: Abstraction has 140074 states and 156812 transitions. [2018-10-26 22:09:54,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:09:54,632 INFO L276 IsEmpty]: Start isEmpty. Operand 140074 states and 156812 transitions. [2018-10-26 22:09:54,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 918 [2018-10-26 22:09:54,670 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:09:54,671 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:09:54,671 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:09:54,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:09:54,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1931694652, now seen corresponding path program 1 times [2018-10-26 22:09:54,671 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:09:54,672 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:09:54,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:09:54,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:09:54,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:09:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:09:56,629 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-10-26 22:09:56,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:09:56,630 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 22:09:56,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:09:56,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:09:56,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:09:56,631 INFO L87 Difference]: Start difference. First operand 140074 states and 156812 transitions. Second operand 4 states. Received shutdown request... [2018-10-26 22:10:17,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:10:17,816 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 22:10:17,821 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 22:10:17,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:10:17 BoogieIcfgContainer [2018-10-26 22:10:17,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:10:17,823 INFO L168 Benchmark]: Toolchain (without parser) took 232875.66 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 1.2 GB in the end (delta: 234.5 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-26 22:10:17,824 INFO L168 Benchmark]: CDTParser took 0.26 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. [2018-10-26 22:10:17,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3207.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 994.9 MB in the end (delta: 402.5 MB). Peak memory consumption was 402.5 MB. Max. memory is 7.1 GB. [2018-10-26 22:10:17,825 INFO L168 Benchmark]: Boogie Procedure Inliner took 1134.46 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 865.1 MB). Free memory was 994.9 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. [2018-10-26 22:10:17,826 INFO L168 Benchmark]: Boogie Preprocessor took 756.80 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: 93.8 MB). Peak memory consumption was 93.8 MB. Max. memory is 7.1 GB. [2018-10-26 22:10:17,827 INFO L168 Benchmark]: RCFGBuilder took 17894.81 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 281.0 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -384.8 MB). Peak memory consumption was 854.8 MB. Max. memory is 7.1 GB. [2018-10-26 22:10:17,828 INFO L168 Benchmark]: TraceAbstraction took 209876.01 ms. Allocated memory was 2.7 GB in the beginning and 3.5 GB in the end (delta: 828.4 MB). Free memory was 2.4 GB in the beginning and 1.2 GB in the end (delta: 1.3 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-26 22:10:17,833 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 3207.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 994.9 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 1134.46 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 865.1 MB). Free memory was 994.9 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 756.80 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: 93.8 MB). Peak memory consumption was 93.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17894.81 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 281.0 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -384.8 MB). Peak memory consumption was 854.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209876.01 ms. Allocated memory was 2.7 GB in the beginning and 3.5 GB in the end (delta: 828.4 MB). Free memory was 2.4 GB in the beginning and 1.2 GB in the end (delta: 1.3 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 178]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 178). Cancelled while BasicCegarLoop was constructing difference of abstraction (140074states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (221986 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 209.7s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 194.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9249 SDtfs, 32063 SDslu, 2830 SDs, 0 SdLazy, 71922 SolverSat, 18812 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 168.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 330 GetRequests, 303 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140074occurred 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, 7 MinimizatonAttempts, 55137 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 3364 NumberOfCodeBlocks, 3364 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 3355 ConstructedInterpolants, 0 QuantifiedInterpolants, 3395088 SizeOfPredicates, 1 NumberOfNonLiveVariables, 353 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 1814/1818 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown