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/Problem17_label55_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:33:51,098 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:33:51,101 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:33:51,115 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:33:51,116 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:33:51,117 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:33:51,118 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:33:51,120 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:33:51,121 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:33:51,122 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:33:51,123 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:33:51,124 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:33:51,125 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:33:51,127 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:33:51,130 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:33:51,131 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:33:51,132 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:33:51,134 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:33:51,136 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:33:51,137 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:33:51,138 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:33:51,139 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:33:51,142 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:33:51,142 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:33:51,142 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:33:51,143 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:33:51,144 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:33:51,145 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:33:51,146 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:33:51,147 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:33:51,147 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:33:51,148 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 14:33:51,150 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 14:33:51,168 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:33:51,168 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:33:51,169 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:33:51,170 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:33:51,170 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:33:51,170 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:33:51,171 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:33:51,171 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:33:51,171 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:33:51,171 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:33:51,171 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:33:51,172 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:33:51,173 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:33:51,173 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:33:51,173 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:33:51,173 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:33:51,173 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:33:51,175 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:33:51,175 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:33:51,175 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:33:51,175 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:33:51,175 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:33:51,176 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:33:51,176 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:33:51,176 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:33:51,176 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:33:51,176 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:33:51,176 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:33:51,234 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:33:51,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:33:51,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:33:51,256 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:33:51,257 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:33:51,257 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label55_false-unreach-call.c [2018-10-24 14:33:51,316 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9864e017a/fd0fe59155f54687a5c1acf6654150d7/FLAGd78c129ae [2018-10-24 14:33:51,990 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:33:51,991 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label55_false-unreach-call.c [2018-10-24 14:33:52,019 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9864e017a/fd0fe59155f54687a5c1acf6654150d7/FLAGd78c129ae [2018-10-24 14:33:52,040 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9864e017a/fd0fe59155f54687a5c1acf6654150d7 [2018-10-24 14:33:52,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:33:52,054 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:33:52,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:33:52,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:33:52,059 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:33:52,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:33:52" (1/1) ... [2018-10-24 14:33:52,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b1cf46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:52, skipping insertion in model container [2018-10-24 14:33:52,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:33:52" (1/1) ... [2018-10-24 14:33:52,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:33:52,190 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:33:53,233 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:33:53,238 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:33:53,662 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:33:53,688 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:33:53,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:53 WrapperNode [2018-10-24 14:33:53,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:33:53,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:33:53,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:33:53,691 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:33:53,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:53" (1/1) ... [2018-10-24 14:33:53,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:53" (1/1) ... [2018-10-24 14:33:54,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:33:54,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:33:54,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:33:54,198 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:33:54,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:53" (1/1) ... [2018-10-24 14:33:54,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:53" (1/1) ... [2018-10-24 14:33:54,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:53" (1/1) ... [2018-10-24 14:33:54,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:53" (1/1) ... [2018-10-24 14:33:54,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:53" (1/1) ... [2018-10-24 14:33:54,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:53" (1/1) ... [2018-10-24 14:33:54,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:53" (1/1) ... [2018-10-24 14:33:54,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:33:54,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:33:54,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:33:54,479 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:33:54,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:53" (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 14:33:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:33:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:33:54,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:34:03,572 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:34:03,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:34:03 BoogieIcfgContainer [2018-10-24 14:34:03,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:34:03,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:34:03,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:34:03,578 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:34:03,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:33:52" (1/3) ... [2018-10-24 14:34:03,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78984cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:34:03, skipping insertion in model container [2018-10-24 14:34:03,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:33:53" (2/3) ... [2018-10-24 14:34:03,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78984cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:34:03, skipping insertion in model container [2018-10-24 14:34:03,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:34:03" (3/3) ... [2018-10-24 14:34:03,586 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label55_false-unreach-call.c [2018-10-24 14:34:03,594 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:34:03,603 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:34:03,622 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:34:03,668 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:34:03,669 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:34:03,669 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:34:03,669 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:34:03,669 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:34:03,669 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:34:03,670 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:34:03,670 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:34:03,670 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:34:03,709 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-10-24 14:34:03,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-24 14:34:03,716 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:34:03,717 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:34:03,720 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:34:03,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:34:03,725 INFO L82 PathProgramCache]: Analyzing trace with hash -643220670, now seen corresponding path program 1 times [2018-10-24 14:34:03,727 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:34:03,727 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:34:03,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:03,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:03,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:04,067 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 14:34:04,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:34:04,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:34:04,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:34:04,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:34:04,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:34:04,094 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-10-24 14:34:13,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:34:13,755 INFO L93 Difference]: Finished difference Result 2085 states and 3898 transitions. [2018-10-24 14:34:13,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:34:13,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-10-24 14:34:13,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:34:13,791 INFO L225 Difference]: With dead ends: 2085 [2018-10-24 14:34:13,791 INFO L226 Difference]: Without dead ends: 1487 [2018-10-24 14:34:13,798 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 14:34:13,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2018-10-24 14:34:13,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1023. [2018-10-24 14:34:13,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2018-10-24 14:34:13,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1623 transitions. [2018-10-24 14:34:13,915 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1623 transitions. Word has length 12 [2018-10-24 14:34:13,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:34:13,916 INFO L481 AbstractCegarLoop]: Abstraction has 1023 states and 1623 transitions. [2018-10-24 14:34:13,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:34:13,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1623 transitions. [2018-10-24 14:34:13,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-10-24 14:34:13,920 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:34:13,921 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:34:13,921 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:34:13,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:34:13,921 INFO L82 PathProgramCache]: Analyzing trace with hash 2056756602, now seen corresponding path program 1 times [2018-10-24 14:34:13,923 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:34:13,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:34:13,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:13,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:13,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:14,253 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:34:14,253 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:34:14,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:34:14,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:34:14,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:34:14,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:34:14,258 INFO L87 Difference]: Start difference. First operand 1023 states and 1623 transitions. Second operand 4 states. [2018-10-24 14:34:24,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:34:24,612 INFO L93 Difference]: Finished difference Result 2908 states and 4662 transitions. [2018-10-24 14:34:24,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:34:24,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2018-10-24 14:34:24,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:34:24,622 INFO L225 Difference]: With dead ends: 2908 [2018-10-24 14:34:24,623 INFO L226 Difference]: Without dead ends: 1887 [2018-10-24 14:34:24,625 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 14:34:24,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1887 states. [2018-10-24 14:34:24,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 1887. [2018-10-24 14:34:24,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1887 states. [2018-10-24 14:34:24,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2573 transitions. [2018-10-24 14:34:24,675 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2573 transitions. Word has length 80 [2018-10-24 14:34:24,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:34:24,675 INFO L481 AbstractCegarLoop]: Abstraction has 1887 states and 2573 transitions. [2018-10-24 14:34:24,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:34:24,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2573 transitions. [2018-10-24 14:34:24,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-10-24 14:34:24,678 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:34:24,678 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:34:24,679 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:34:24,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:34:24,679 INFO L82 PathProgramCache]: Analyzing trace with hash 33596271, now seen corresponding path program 1 times [2018-10-24 14:34:24,679 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:34:24,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:34:24,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:24,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:24,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:24,909 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:34:24,910 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:34:24,910 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:34:24,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:25,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:34:25,151 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:34:25,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:34:25,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 14:34:25,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:34:25,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:34:25,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:34:25,190 INFO L87 Difference]: Start difference. First operand 1887 states and 2573 transitions. Second operand 6 states. [2018-10-24 14:34:41,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:34:41,552 INFO L93 Difference]: Finished difference Result 7647 states and 10323 transitions. [2018-10-24 14:34:41,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:34:41,553 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2018-10-24 14:34:41,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:34:41,573 INFO L225 Difference]: With dead ends: 7647 [2018-10-24 14:34:41,573 INFO L226 Difference]: Without dead ends: 3970 [2018-10-24 14:34:41,579 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:34:41,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3970 states. [2018-10-24 14:34:41,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3970 to 3968. [2018-10-24 14:34:41,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3968 states. [2018-10-24 14:34:41,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 4666 transitions. [2018-10-24 14:34:41,649 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 4666 transitions. Word has length 83 [2018-10-24 14:34:41,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:34:41,650 INFO L481 AbstractCegarLoop]: Abstraction has 3968 states and 4666 transitions. [2018-10-24 14:34:41,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:34:41,650 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 4666 transitions. [2018-10-24 14:34:41,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-10-24 14:34:41,654 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:34:41,657 INFO L375 BasicCegarLoop]: trace histogram [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, 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 14:34:41,657 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:34:41,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:34:41,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1868211473, now seen corresponding path program 1 times [2018-10-24 14:34:41,658 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:34:41,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:34:41,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:41,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:41,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:41,917 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:34:41,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:34:41,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:34:41,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:34:41,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:34:41,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:34:41,920 INFO L87 Difference]: Start difference. First operand 3968 states and 4666 transitions. Second operand 3 states. [2018-10-24 14:34:45,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:34:45,606 INFO L93 Difference]: Finished difference Result 9640 states and 11597 transitions. [2018-10-24 14:34:45,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:34:45,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2018-10-24 14:34:45,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:34:45,635 INFO L225 Difference]: With dead ends: 9640 [2018-10-24 14:34:45,636 INFO L226 Difference]: Without dead ends: 6101 [2018-10-24 14:34:45,641 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:34:45,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6101 states. [2018-10-24 14:34:45,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6101 to 6101. [2018-10-24 14:34:45,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6101 states. [2018-10-24 14:34:45,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 7045 transitions. [2018-10-24 14:34:45,754 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 7045 transitions. Word has length 162 [2018-10-24 14:34:45,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:34:45,754 INFO L481 AbstractCegarLoop]: Abstraction has 6101 states and 7045 transitions. [2018-10-24 14:34:45,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:34:45,755 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 7045 transitions. [2018-10-24 14:34:45,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2018-10-24 14:34:45,769 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:34:45,769 INFO L375 BasicCegarLoop]: trace histogram [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, 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 14:34:45,769 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:34:45,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:34:45,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1085771879, now seen corresponding path program 1 times [2018-10-24 14:34:45,770 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:34:45,770 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:34:45,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:45,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:45,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:46,294 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 162 proven. 83 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-24 14:34:46,294 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:34:46,294 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:34:46,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:46,413 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:34:46,661 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 162 proven. 83 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-24 14:34:46,682 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:34:46,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-10-24 14:34:46,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:34:46,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:34:46,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:34:46,684 INFO L87 Difference]: Start difference. First operand 6101 states and 7045 transitions. Second operand 7 states. [2018-10-24 14:35:00,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:35:00,019 INFO L93 Difference]: Finished difference Result 20338 states and 23840 transitions. [2018-10-24 14:35:00,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:35:00,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 267 [2018-10-24 14:35:00,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:35:00,078 INFO L225 Difference]: With dead ends: 20338 [2018-10-24 14:35:00,078 INFO L226 Difference]: Without dead ends: 13377 [2018-10-24 14:35:00,095 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:35:00,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13377 states. [2018-10-24 14:35:00,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13377 to 12935. [2018-10-24 14:35:00,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12935 states. [2018-10-24 14:35:00,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12935 states to 12935 states and 14479 transitions. [2018-10-24 14:35:00,359 INFO L78 Accepts]: Start accepts. Automaton has 12935 states and 14479 transitions. Word has length 267 [2018-10-24 14:35:00,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:35:00,360 INFO L481 AbstractCegarLoop]: Abstraction has 12935 states and 14479 transitions. [2018-10-24 14:35:00,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:35:00,360 INFO L276 IsEmpty]: Start isEmpty. Operand 12935 states and 14479 transitions. [2018-10-24 14:35:00,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2018-10-24 14:35:00,368 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:35:00,369 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:35:00,369 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:35:00,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:35:00,369 INFO L82 PathProgramCache]: Analyzing trace with hash 2021577201, now seen corresponding path program 1 times [2018-10-24 14:35:00,370 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:35:00,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:35:00,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:35:00,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:35:00,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:35:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:35:01,304 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 244 proven. 10 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2018-10-24 14:35:01,304 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:35:01,304 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:35:01,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:35:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:35:01,433 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:35:01,925 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 311 proven. 83 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-24 14:35:01,960 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:35:01,960 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2018-10-24 14:35:01,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 14:35:01,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 14:35:01,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:35:01,962 INFO L87 Difference]: Start difference. First operand 12935 states and 14479 transitions. Second operand 8 states. [2018-10-24 14:35:22,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:35:22,070 INFO L93 Difference]: Finished difference Result 60870 states and 68405 transitions. [2018-10-24 14:35:22,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-24 14:35:22,072 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 349 [2018-10-24 14:35:22,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:35:22,167 INFO L225 Difference]: With dead ends: 60870 [2018-10-24 14:35:22,167 INFO L226 Difference]: Without dead ends: 44931 [2018-10-24 14:35:22,196 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2018-10-24 14:35:22,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44931 states. [2018-10-24 14:35:23,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44931 to 36347. [2018-10-24 14:35:23,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36347 states. [2018-10-24 14:35:23,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36347 states to 36347 states and 39714 transitions. [2018-10-24 14:35:23,062 INFO L78 Accepts]: Start accepts. Automaton has 36347 states and 39714 transitions. Word has length 349 [2018-10-24 14:35:23,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:35:23,062 INFO L481 AbstractCegarLoop]: Abstraction has 36347 states and 39714 transitions. [2018-10-24 14:35:23,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 14:35:23,063 INFO L276 IsEmpty]: Start isEmpty. Operand 36347 states and 39714 transitions. [2018-10-24 14:35:23,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2018-10-24 14:35:23,097 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:35:23,098 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-10-24 14:35:23,098 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:35:23,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:35:23,099 INFO L82 PathProgramCache]: Analyzing trace with hash 393842420, now seen corresponding path program 1 times [2018-10-24 14:35:23,099 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:35:23,099 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:35:23,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:35:23,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:35:23,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:35:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:35:24,069 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 384 proven. 389 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-10-24 14:35:24,069 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:35:24,069 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:35:24,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:35:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:35:24,254 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:35:25,424 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 699 proven. 75 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-24 14:35:25,445 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:35:25,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2018-10-24 14:35:25,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 14:35:25,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 14:35:25,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:35:25,448 INFO L87 Difference]: Start difference. First operand 36347 states and 39714 transitions. Second operand 8 states. [2018-10-24 14:35:45,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:35:45,401 INFO L93 Difference]: Finished difference Result 104665 states and 114623 transitions. [2018-10-24 14:35:45,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 14:35:45,402 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 643 [2018-10-24 14:35:45,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:35:45,508 INFO L225 Difference]: With dead ends: 104665 [2018-10-24 14:35:45,508 INFO L226 Difference]: Without dead ends: 69170 [2018-10-24 14:35:45,559 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 641 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:35:45,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69170 states. [2018-10-24 14:35:46,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69170 to 51670. [2018-10-24 14:35:46,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51670 states. [2018-10-24 14:35:46,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51670 states to 51670 states and 55305 transitions. [2018-10-24 14:35:46,679 INFO L78 Accepts]: Start accepts. Automaton has 51670 states and 55305 transitions. Word has length 643 [2018-10-24 14:35:46,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:35:46,680 INFO L481 AbstractCegarLoop]: Abstraction has 51670 states and 55305 transitions. [2018-10-24 14:35:46,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 14:35:46,681 INFO L276 IsEmpty]: Start isEmpty. Operand 51670 states and 55305 transitions. [2018-10-24 14:35:46,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2018-10-24 14:35:46,731 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:35:46,732 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:35:46,732 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:35:46,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:35:46,733 INFO L82 PathProgramCache]: Analyzing trace with hash -538517315, now seen corresponding path program 1 times [2018-10-24 14:35:46,733 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:35:46,733 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:35:46,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:35:46,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:35:46,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:35:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:35:47,972 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 545 proven. 248 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-10-24 14:35:47,972 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:35:47,972 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:35:47,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:35:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:35:48,166 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:36:02,082 WARN L179 SmtUtils]: Spent 12.75 s on a formula simplification. DAG size of input: 122 DAG size of output: 52 [2018-10-24 14:36:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 711 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2018-10-24 14:36:04,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:36:04,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-10-24 14:36:04,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 14:36:04,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 14:36:04,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:36:04,464 INFO L87 Difference]: Start difference. First operand 51670 states and 55305 transitions. Second operand 8 states. [2018-10-24 14:36:06,667 WARN L179 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 57 DAG size of output: 29 [2018-10-24 14:36:32,015 WARN L179 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 58 DAG size of output: 30 Received shutdown request... [2018-10-24 14:38:07,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:38:07,833 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:38:07,838 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:38:07,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:38:07 BoogieIcfgContainer [2018-10-24 14:38:07,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:38:07,839 INFO L168 Benchmark]: Toolchain (without parser) took 255785.94 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -365.1 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 14:38:07,840 INFO L168 Benchmark]: CDTParser took 0.20 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 14:38:07,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1634.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 14:38:07,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 506.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 800.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -924.2 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:38:07,842 INFO L168 Benchmark]: Boogie Preprocessor took 281.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 41.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:38:07,843 INFO L168 Benchmark]: RCFGBuilder took 9094.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 468.4 MB). Peak memory consumption was 468.4 MB. Max. memory is 7.1 GB. [2018-10-24 14:38:07,844 INFO L168 Benchmark]: TraceAbstraction took 244264.24 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.4 GB). Free memory was 1.7 GB in the beginning and 1.8 GB in the end (delta: -87.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 14:38:07,849 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1634.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 506.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 800.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -924.2 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 281.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 41.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9094.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 468.4 MB). Peak memory consumption was 468.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 244264.24 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.4 GB). Free memory was 1.7 GB in the beginning and 1.8 GB in the end (delta: -87.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 41]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 41). Cancelled while BasicCegarLoop was constructing difference of abstraction (51670states) and FLOYD_HOARE automaton (currently 5 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (833 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 244.1s OverallTime, 8 OverallIterations, 6 TraceHistogramMax, 217.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2816 SDtfs, 16307 SDslu, 2038 SDs, 0 SdLazy, 39152 SolverSat, 4607 SolverUnsat, 57 SolverUnknown, 0 SolverNotchecked, 201.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2064 GetRequests, 2014 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 21.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51670occurred 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: 2.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 26992 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 21.4s InterpolantComputationTime, 4268 NumberOfCodeBlocks, 4268 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 4255 ConstructedInterpolants, 201 QuantifiedInterpolants, 18208831 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2637 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 4121/5101 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown