java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label06_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 19:03:19,814 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 19:03:19,816 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 19:03:19,828 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 19:03:19,828 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 19:03:19,829 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 19:03:19,832 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 19:03:19,834 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 19:03:19,838 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 19:03:19,839 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 19:03:19,843 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 19:03:19,844 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 19:03:19,845 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 19:03:19,846 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 19:03:19,847 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 19:03:19,850 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 19:03:19,851 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 19:03:19,854 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 19:03:19,859 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 19:03:19,866 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 19:03:19,869 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 19:03:19,870 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 19:03:19,875 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 19:03:19,875 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 19:03:19,875 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 19:03:19,877 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 19:03:19,878 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 19:03:19,878 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 19:03:19,879 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 19:03:19,883 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 19:03:19,883 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 19:03:19,884 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 19:03:19,887 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 19:03:19,918 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 19:03:19,919 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 19:03:19,920 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 19:03:19,920 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 19:03:19,920 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 19:03:19,921 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 19:03:19,921 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 19:03:19,921 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 19:03:19,921 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 19:03:19,922 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 19:03:19,922 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 19:03:19,922 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 19:03:19,922 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 19:03:19,922 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 19:03:19,922 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 19:03:19,923 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 19:03:19,923 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 19:03:19,923 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 19:03:19,923 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 19:03:19,923 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:03:19,924 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 19:03:19,924 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 19:03:19,924 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 19:03:19,924 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 19:03:19,924 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 19:03:19,925 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 19:03:19,925 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 19:03:19,925 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 19:03:19,977 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 19:03:19,992 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 19:03:19,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 19:03:19,999 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 19:03:19,999 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 19:03:20,000 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label06_false-unreach-call.c [2018-11-06 19:03:20,066 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9c823493/eb1411ff10304db997e465bc050af321/FLAG0b0aa730f [2018-11-06 19:03:20,865 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 19:03:20,866 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label06_false-unreach-call.c [2018-11-06 19:03:20,899 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9c823493/eb1411ff10304db997e465bc050af321/FLAG0b0aa730f [2018-11-06 19:03:20,920 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9c823493/eb1411ff10304db997e465bc050af321 [2018-11-06 19:03:20,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 19:03:20,938 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 19:03:20,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 19:03:20,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 19:03:20,945 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 19:03:20,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:03:20" (1/1) ... [2018-11-06 19:03:20,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41600c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:20, skipping insertion in model container [2018-11-06 19:03:20,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:03:20" (1/1) ... [2018-11-06 19:03:20,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 19:03:21,134 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 19:03:22,584 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:03:22,591 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 19:03:23,182 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:03:23,221 INFO L193 MainTranslator]: Completed translation [2018-11-06 19:03:23,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:23 WrapperNode [2018-11-06 19:03:23,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 19:03:23,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 19:03:23,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 19:03:23,224 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 19:03:23,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:23" (1/1) ... [2018-11-06 19:03:23,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:23" (1/1) ... [2018-11-06 19:03:23,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 19:03:23,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 19:03:23,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 19:03:23,894 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 19:03:23,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:23" (1/1) ... [2018-11-06 19:03:23,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:23" (1/1) ... [2018-11-06 19:03:23,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:23" (1/1) ... [2018-11-06 19:03:23,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:23" (1/1) ... [2018-11-06 19:03:24,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:23" (1/1) ... [2018-11-06 19:03:24,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:23" (1/1) ... [2018-11-06 19:03:24,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:23" (1/1) ... [2018-11-06 19:03:24,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 19:03:24,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 19:03:24,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 19:03:24,229 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 19:03:24,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:03:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 19:03:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 19:03:24,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 19:03:32,799 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 19:03:32,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:03:32 BoogieIcfgContainer [2018-11-06 19:03:32,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 19:03:32,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 19:03:32,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 19:03:32,805 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 19:03:32,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:03:20" (1/3) ... [2018-11-06 19:03:32,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2334a704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:03:32, skipping insertion in model container [2018-11-06 19:03:32,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:03:23" (2/3) ... [2018-11-06 19:03:32,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2334a704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:03:32, skipping insertion in model container [2018-11-06 19:03:32,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:03:32" (3/3) ... [2018-11-06 19:03:32,809 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label06_false-unreach-call.c [2018-11-06 19:03:32,819 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 19:03:32,829 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 19:03:32,847 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 19:03:32,890 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 19:03:32,891 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 19:03:32,891 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 19:03:32,891 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 19:03:32,891 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 19:03:32,891 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 19:03:32,891 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 19:03:32,891 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 19:03:32,891 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 19:03:32,927 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-11-06 19:03:32,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-06 19:03:32,934 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:03:32,936 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] [2018-11-06 19:03:32,938 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:03:32,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:03:32,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1155896462, now seen corresponding path program 1 times [2018-11-06 19:03:32,947 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:03:32,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:03:33,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:03:33,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:03:33,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:03:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:03:33,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:03:33,293 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:03:33,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:03:33,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:03:33,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:03:33,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:03:33,315 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-11-06 19:03:45,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:03:45,243 INFO L93 Difference]: Finished difference Result 3162 states and 6150 transitions. [2018-11-06 19:03:45,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:03:45,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-11-06 19:03:45,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:03:45,291 INFO L225 Difference]: With dead ends: 3162 [2018-11-06 19:03:45,291 INFO L226 Difference]: Without dead ends: 2336 [2018-11-06 19:03:45,300 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:03:45,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2018-11-06 19:03:45,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2018-11-06 19:03:45,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2336 states. [2018-11-06 19:03:45,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3769 transitions. [2018-11-06 19:03:45,465 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3769 transitions. Word has length 24 [2018-11-06 19:03:45,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:03:45,466 INFO L480 AbstractCegarLoop]: Abstraction has 2336 states and 3769 transitions. [2018-11-06 19:03:45,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:03:45,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3769 transitions. [2018-11-06 19:03:45,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-11-06 19:03:45,470 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:03:45,473 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:03:45,473 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:03:45,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:03:45,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1814416017, now seen corresponding path program 1 times [2018-11-06 19:03:45,474 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:03:45,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:03:45,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:03:45,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:03:45,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:03:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:03:46,273 WARN L179 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 20 [2018-11-06 19:03:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:03:46,433 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:03:46,433 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 19:03:46,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 19:03:46,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 19:03:46,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:03:46,436 INFO L87 Difference]: Start difference. First operand 2336 states and 3769 transitions. Second operand 6 states. [2018-11-06 19:04:02,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:04:02,842 INFO L93 Difference]: Finished difference Result 9183 states and 14416 transitions. [2018-11-06 19:04:02,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:04:02,843 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-11-06 19:04:02,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:04:02,879 INFO L225 Difference]: With dead ends: 9183 [2018-11-06 19:04:02,879 INFO L226 Difference]: Without dead ends: 6849 [2018-11-06 19:04:02,886 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-11-06 19:04:02,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6849 states. [2018-11-06 19:04:03,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6849 to 6849. [2018-11-06 19:04:03,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6849 states. [2018-11-06 19:04:03,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6849 states to 6849 states and 9754 transitions. [2018-11-06 19:04:03,027 INFO L78 Accepts]: Start accepts. Automaton has 6849 states and 9754 transitions. Word has length 101 [2018-11-06 19:04:03,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:04:03,027 INFO L480 AbstractCegarLoop]: Abstraction has 6849 states and 9754 transitions. [2018-11-06 19:04:03,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 19:04:03,028 INFO L276 IsEmpty]: Start isEmpty. Operand 6849 states and 9754 transitions. [2018-11-06 19:04:03,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-11-06 19:04:03,035 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:04:03,035 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 19:04:03,036 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:04:03,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:04:03,036 INFO L82 PathProgramCache]: Analyzing trace with hash -143512201, now seen corresponding path program 1 times [2018-11-06 19:04:03,036 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:04:03,036 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:04:03,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:03,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:04:03,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:04:03,607 WARN L179 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 9 [2018-11-06 19:04:03,779 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 109 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:04:03,779 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:04:03,780 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:04:03,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:04:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:04:03,872 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:04:04,085 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:04:04,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:04:04,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-11-06 19:04:04,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 19:04:04,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 19:04:04,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-11-06 19:04:04,118 INFO L87 Difference]: Start difference. First operand 6849 states and 9754 transitions. Second operand 7 states. [2018-11-06 19:04:21,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:04:21,329 INFO L93 Difference]: Finished difference Result 28768 states and 40519 transitions. [2018-11-06 19:04:21,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-06 19:04:21,330 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2018-11-06 19:04:21,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:04:21,427 INFO L225 Difference]: With dead ends: 28768 [2018-11-06 19:04:21,428 INFO L226 Difference]: Without dead ends: 18909 [2018-11-06 19:04:21,446 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 204 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-11-06 19:04:21,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18909 states. [2018-11-06 19:04:21,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18909 to 14367. [2018-11-06 19:04:21,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14367 states. [2018-11-06 19:04:21,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14367 states to 14367 states and 17896 transitions. [2018-11-06 19:04:21,800 INFO L78 Accepts]: Start accepts. Automaton has 14367 states and 17896 transitions. Word has length 203 [2018-11-06 19:04:21,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:04:21,801 INFO L480 AbstractCegarLoop]: Abstraction has 14367 states and 17896 transitions. [2018-11-06 19:04:21,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 19:04:21,801 INFO L276 IsEmpty]: Start isEmpty. Operand 14367 states and 17896 transitions. [2018-11-06 19:04:21,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-11-06 19:04:21,809 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:04:21,810 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 19:04:21,810 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:04:21,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:04:21,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1620461169, now seen corresponding path program 1 times [2018-11-06 19:04:21,811 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:04:21,811 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:04:21,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:21,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:04:21,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:04:22,337 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:04:22,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:04:22,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:04:22,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:04:22,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:04:22,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:04:22,339 INFO L87 Difference]: Start difference. First operand 14367 states and 17896 transitions. Second operand 4 states. [2018-11-06 19:04:29,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:04:29,995 INFO L93 Difference]: Finished difference Result 49788 states and 63216 transitions. [2018-11-06 19:04:30,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:04:30,002 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 258 [2018-11-06 19:04:30,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:04:30,069 INFO L225 Difference]: With dead ends: 49788 [2018-11-06 19:04:30,070 INFO L226 Difference]: Without dead ends: 35423 [2018-11-06 19:04:30,091 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:04:30,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35423 states. [2018-11-06 19:04:30,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35423 to 35423. [2018-11-06 19:04:30,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35423 states. [2018-11-06 19:04:30,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35423 states to 35423 states and 43956 transitions. [2018-11-06 19:04:30,676 INFO L78 Accepts]: Start accepts. Automaton has 35423 states and 43956 transitions. Word has length 258 [2018-11-06 19:04:30,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:04:30,677 INFO L480 AbstractCegarLoop]: Abstraction has 35423 states and 43956 transitions. [2018-11-06 19:04:30,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:04:30,677 INFO L276 IsEmpty]: Start isEmpty. Operand 35423 states and 43956 transitions. [2018-11-06 19:04:30,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-11-06 19:04:30,684 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:04:30,685 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 19:04:30,685 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:04:30,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:04:30,685 INFO L82 PathProgramCache]: Analyzing trace with hash 401768632, now seen corresponding path program 1 times [2018-11-06 19:04:30,685 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:04:30,686 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:04:30,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:30,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:04:30,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:04:31,380 WARN L179 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-11-06 19:04:31,791 WARN L179 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2018-11-06 19:04:32,344 WARN L179 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 20 [2018-11-06 19:04:33,012 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 44 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:04:33,012 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:04:33,012 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:04:33,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:04:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:04:33,121 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:04:33,471 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 85 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:04:33,491 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:04:33,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2018-11-06 19:04:33,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 19:04:33,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 19:04:33,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-06 19:04:33,493 INFO L87 Difference]: Start difference. First operand 35423 states and 43956 transitions. Second operand 8 states. [2018-11-06 19:04:48,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:04:48,818 INFO L93 Difference]: Finished difference Result 104684 states and 131693 transitions. [2018-11-06 19:04:48,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-06 19:04:48,819 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 280 [2018-11-06 19:04:48,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:04:48,959 INFO L225 Difference]: With dead ends: 104684 [2018-11-06 19:04:48,959 INFO L226 Difference]: Without dead ends: 66253 [2018-11-06 19:04:49,004 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 279 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2018-11-06 19:04:49,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66253 states. [2018-11-06 19:04:49,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66253 to 60989. [2018-11-06 19:04:49,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60989 states. [2018-11-06 19:04:49,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60989 states to 60989 states and 74050 transitions. [2018-11-06 19:04:49,769 INFO L78 Accepts]: Start accepts. Automaton has 60989 states and 74050 transitions. Word has length 280 [2018-11-06 19:04:49,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:04:49,770 INFO L480 AbstractCegarLoop]: Abstraction has 60989 states and 74050 transitions. [2018-11-06 19:04:49,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 19:04:49,770 INFO L276 IsEmpty]: Start isEmpty. Operand 60989 states and 74050 transitions. [2018-11-06 19:04:49,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-11-06 19:04:49,775 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:04:49,776 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 19:04:49,776 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:04:49,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:04:49,776 INFO L82 PathProgramCache]: Analyzing trace with hash -737792549, now seen corresponding path program 1 times [2018-11-06 19:04:49,777 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:04:49,777 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:04:49,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:49,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:04:49,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:04:50,152 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-11-06 19:04:50,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:04:50,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:04:50,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:04:50,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:04:50,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:04:50,155 INFO L87 Difference]: Start difference. First operand 60989 states and 74050 transitions. Second operand 3 states. [2018-11-06 19:04:55,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:04:55,733 INFO L93 Difference]: Finished difference Result 157320 states and 192508 transitions. [2018-11-06 19:04:55,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:04:55,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 303 [2018-11-06 19:04:55,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:04:55,868 INFO L225 Difference]: With dead ends: 157320 [2018-11-06 19:04:55,868 INFO L226 Difference]: Without dead ends: 97085 [2018-11-06 19:04:55,918 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:04:55,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97085 states. [2018-11-06 19:04:56,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97085 to 97085. [2018-11-06 19:04:56,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97085 states. [2018-11-06 19:04:57,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97085 states to 97085 states and 117470 transitions. [2018-11-06 19:04:57,087 INFO L78 Accepts]: Start accepts. Automaton has 97085 states and 117470 transitions. Word has length 303 [2018-11-06 19:04:57,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:04:57,087 INFO L480 AbstractCegarLoop]: Abstraction has 97085 states and 117470 transitions. [2018-11-06 19:04:57,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:04:57,088 INFO L276 IsEmpty]: Start isEmpty. Operand 97085 states and 117470 transitions. [2018-11-06 19:04:57,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2018-11-06 19:04:57,114 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:04:57,118 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-06 19:04:57,118 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:04:57,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:04:57,119 INFO L82 PathProgramCache]: Analyzing trace with hash -540361336, now seen corresponding path program 1 times [2018-11-06 19:04:57,119 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:04:57,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:04:57,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:57,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:04:57,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:04:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:04:57,532 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 543 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-11-06 19:04:57,532 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:04:57,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:04:57,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:04:57,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:04:57,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:04:57,534 INFO L87 Difference]: Start difference. First operand 97085 states and 117470 transitions. Second operand 4 states. [2018-11-06 19:05:05,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:05:05,042 INFO L93 Difference]: Finished difference Result 232520 states and 280788 transitions. [2018-11-06 19:05:05,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:05:05,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 465 [2018-11-06 19:05:05,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:05:05,192 INFO L225 Difference]: With dead ends: 232520 [2018-11-06 19:05:05,193 INFO L226 Difference]: Without dead ends: 136189 [2018-11-06 19:05:05,254 INFO L604 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 [2018-11-06 19:05:05,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136189 states. [2018-11-06 19:05:06,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136189 to 132429. [2018-11-06 19:05:06,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132429 states. [2018-11-06 19:05:06,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132429 states to 132429 states and 152177 transitions. [2018-11-06 19:05:06,556 INFO L78 Accepts]: Start accepts. Automaton has 132429 states and 152177 transitions. Word has length 465 [2018-11-06 19:05:06,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:05:06,556 INFO L480 AbstractCegarLoop]: Abstraction has 132429 states and 152177 transitions. [2018-11-06 19:05:06,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:05:06,557 INFO L276 IsEmpty]: Start isEmpty. Operand 132429 states and 152177 transitions. [2018-11-06 19:05:06,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2018-11-06 19:05:06,583 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:05:06,584 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2018-11-06 19:05:06,584 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:05:06,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:05:06,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1975746954, now seen corresponding path program 1 times [2018-11-06 19:05:06,585 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:05:06,585 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:05:06,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:06,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:06,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:07,017 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 576 proven. 5 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-11-06 19:05:07,017 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:05:07,017 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 19:05:07,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:07,152 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:05:07,984 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 392 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2018-11-06 19:05:08,005 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:05:08,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 19:05:08,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:05:08,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:05:08,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:05:08,007 INFO L87 Difference]: Start difference. First operand 132429 states and 152177 transitions. Second operand 5 states. [2018-11-06 19:05:17,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:05:17,069 INFO L93 Difference]: Finished difference Result 268616 states and 308335 transitions. [2018-11-06 19:05:17,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:05:17,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 488 [2018-11-06 19:05:17,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:05:17,230 INFO L225 Difference]: With dead ends: 268616 [2018-11-06 19:05:17,231 INFO L226 Difference]: Without dead ends: 136941 [2018-11-06 19:05:17,303 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 489 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:05:17,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136941 states. [2018-11-06 19:05:18,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136941 to 133181. [2018-11-06 19:05:18,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133181 states. [2018-11-06 19:05:19,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133181 states to 133181 states and 148884 transitions. [2018-11-06 19:05:19,092 INFO L78 Accepts]: Start accepts. Automaton has 133181 states and 148884 transitions. Word has length 488 [2018-11-06 19:05:19,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:05:19,093 INFO L480 AbstractCegarLoop]: Abstraction has 133181 states and 148884 transitions. [2018-11-06 19:05:19,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:05:19,093 INFO L276 IsEmpty]: Start isEmpty. Operand 133181 states and 148884 transitions. [2018-11-06 19:05:19,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2018-11-06 19:05:19,115 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:05:19,115 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:05:19,116 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:05:19,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:05:19,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1308409374, now seen corresponding path program 1 times [2018-11-06 19:05:19,116 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:05:19,116 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:05:19,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:19,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:19,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:19,816 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 501 proven. 15 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-11-06 19:05:19,816 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:05:19,816 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 19:05:19,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:19,964 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:05:20,250 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 501 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2018-11-06 19:05:20,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:05:20,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 19:05:20,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:05:20,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:05:20,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:05:20,284 INFO L87 Difference]: Start difference. First operand 133181 states and 148884 transitions. Second operand 5 states. [2018-11-06 19:05:27,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:05:27,778 INFO L93 Difference]: Finished difference Result 305464 states and 340799 transitions. [2018-11-06 19:05:27,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:05:27,779 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 496 [2018-11-06 19:05:27,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:05:27,982 INFO L225 Difference]: With dead ends: 305464 [2018-11-06 19:05:27,983 INFO L226 Difference]: Without dead ends: 172284 [2018-11-06 19:05:28,054 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 496 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:05:28,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172284 states. [2018-11-06 19:05:29,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172284 to 164006. [2018-11-06 19:05:29,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164006 states. [2018-11-06 19:05:29,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164006 states to 164006 states and 176030 transitions. [2018-11-06 19:05:29,623 INFO L78 Accepts]: Start accepts. Automaton has 164006 states and 176030 transitions. Word has length 496 [2018-11-06 19:05:29,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:05:29,624 INFO L480 AbstractCegarLoop]: Abstraction has 164006 states and 176030 transitions. [2018-11-06 19:05:29,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:05:29,624 INFO L276 IsEmpty]: Start isEmpty. Operand 164006 states and 176030 transitions. [2018-11-06 19:05:29,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2018-11-06 19:05:29,649 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:05:29,649 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:05:29,650 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:05:29,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:05:29,650 INFO L82 PathProgramCache]: Analyzing trace with hash -915367121, now seen corresponding path program 1 times [2018-11-06 19:05:29,650 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:05:29,651 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:05:29,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:29,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:29,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:30,803 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 785 trivial. 0 not checked. [2018-11-06 19:05:30,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:05:30,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:05:30,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:05:30,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:05:30,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:05:30,804 INFO L87 Difference]: Start difference. First operand 164006 states and 176030 transitions. Second operand 3 states. [2018-11-06 19:05:35,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:05:35,724 INFO L93 Difference]: Finished difference Result 363353 states and 390802 transitions. [2018-11-06 19:05:35,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:05:35,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 606 [2018-11-06 19:05:35,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:05:35,956 INFO L225 Difference]: With dead ends: 363353 [2018-11-06 19:05:35,956 INFO L226 Difference]: Without dead ends: 200101 [2018-11-06 19:05:36,050 INFO L604 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 [2018-11-06 19:05:36,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200101 states. [2018-11-06 19:05:38,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200101 to 198597. [2018-11-06 19:05:38,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198597 states. [2018-11-06 19:05:38,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198597 states to 198597 states and 212197 transitions. [2018-11-06 19:05:38,600 INFO L78 Accepts]: Start accepts. Automaton has 198597 states and 212197 transitions. Word has length 606 [2018-11-06 19:05:38,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:05:38,600 INFO L480 AbstractCegarLoop]: Abstraction has 198597 states and 212197 transitions. [2018-11-06 19:05:38,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:05:38,601 INFO L276 IsEmpty]: Start isEmpty. Operand 198597 states and 212197 transitions. [2018-11-06 19:05:38,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 846 [2018-11-06 19:05:38,654 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:05:38,655 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 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] [2018-11-06 19:05:38,655 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:05:38,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:05:38,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1239426530, now seen corresponding path program 1 times [2018-11-06 19:05:38,656 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:05:38,656 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:05:38,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:38,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:38,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:39,317 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2018-11-06 19:05:39,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:05:39,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:05:39,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:05:39,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:05:39,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:05:39,318 INFO L87 Difference]: Start difference. First operand 198597 states and 212197 transitions. Second operand 3 states. [2018-11-06 19:05:44,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:05:44,562 INFO L93 Difference]: Finished difference Result 389663 states and 416491 transitions. [2018-11-06 19:05:44,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:05:44,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 845 [2018-11-06 19:05:44,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:05:44,784 INFO L225 Difference]: With dead ends: 389663 [2018-11-06 19:05:44,785 INFO L226 Difference]: Without dead ends: 191820 [2018-11-06 19:05:44,885 INFO L604 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 [2018-11-06 19:05:45,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191820 states. [2018-11-06 19:05:47,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191820 to 189564. [2018-11-06 19:05:47,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189564 states. [2018-11-06 19:05:47,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189564 states to 189564 states and 199320 transitions. [2018-11-06 19:05:47,729 INFO L78 Accepts]: Start accepts. Automaton has 189564 states and 199320 transitions. Word has length 845 [2018-11-06 19:05:47,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:05:47,730 INFO L480 AbstractCegarLoop]: Abstraction has 189564 states and 199320 transitions. [2018-11-06 19:05:47,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:05:47,730 INFO L276 IsEmpty]: Start isEmpty. Operand 189564 states and 199320 transitions. [2018-11-06 19:05:47,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 993 [2018-11-06 19:05:47,812 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:05:47,813 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:05:47,814 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:05:47,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:05:47,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1484498579, now seen corresponding path program 1 times [2018-11-06 19:05:47,814 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:05:47,814 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:05:47,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:47,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:47,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:05:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:48,717 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-06 19:05:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 591 proven. 196 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-11-06 19:05:50,678 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:05:50,678 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 19:05:50,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:05:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:05:50,931 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:05:52,430 WARN L179 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 17 [2018-11-06 19:05:53,712 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 591 proven. 196 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-11-06 19:05:53,735 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:05:53,736 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2018-11-06 19:05:53,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-06 19:05:53,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-06 19:05:53,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-06 19:05:53,738 INFO L87 Difference]: Start difference. First operand 189564 states and 199320 transitions. Second operand 11 states. [2018-11-06 19:06:28,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:06:28,579 INFO L93 Difference]: Finished difference Result 459611 states and 483099 transitions. [2018-11-06 19:06:28,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-06 19:06:28,582 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 992 [2018-11-06 19:06:28,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:06:28,881 INFO L225 Difference]: With dead ends: 459611 [2018-11-06 19:06:28,881 INFO L226 Difference]: Without dead ends: 270801 [2018-11-06 19:06:28,967 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1020 GetRequests, 1000 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2018-11-06 19:06:29,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270801 states. [2018-11-06 19:06:31,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270801 to 221157. [2018-11-06 19:06:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221157 states. [2018-11-06 19:06:31,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221157 states to 221157 states and 231090 transitions. [2018-11-06 19:06:31,652 INFO L78 Accepts]: Start accepts. Automaton has 221157 states and 231090 transitions. Word has length 992 [2018-11-06 19:06:31,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:06:31,652 INFO L480 AbstractCegarLoop]: Abstraction has 221157 states and 231090 transitions. [2018-11-06 19:06:31,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-06 19:06:31,653 INFO L276 IsEmpty]: Start isEmpty. Operand 221157 states and 231090 transitions. [2018-11-06 19:06:31,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 997 [2018-11-06 19:06:31,709 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:06:31,710 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:06:31,710 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:06:31,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:06:31,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1707178874, now seen corresponding path program 1 times [2018-11-06 19:06:31,711 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:06:31,711 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:06:31,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:06:31,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:06:31,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:06:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:06:33,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 1078 proven. 6 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-11-06 19:06:33,447 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:06:33,447 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:06:33,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:06:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:06:33,696 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:06:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 1006 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2018-11-06 19:06:38,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:06:38,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2018-11-06 19:06:38,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 19:06:38,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 19:06:38,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-06 19:06:38,381 INFO L87 Difference]: Start difference. First operand 221157 states and 231090 transitions. Second operand 8 states. [2018-11-06 19:06:51,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:06:51,705 INFO L93 Difference]: Finished difference Result 438202 states and 458037 transitions. [2018-11-06 19:06:51,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-06 19:06:51,706 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 996 [2018-11-06 19:06:51,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:06:51,990 INFO L225 Difference]: With dead ends: 438202 [2018-11-06 19:06:51,990 INFO L226 Difference]: Without dead ends: 217799 [2018-11-06 19:06:52,083 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1007 GetRequests, 998 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2018-11-06 19:06:52,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217799 states. [2018-11-06 19:06:53,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217799 to 209107. [2018-11-06 19:06:53,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209107 states. [2018-11-06 19:06:54,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209107 states to 209107 states and 216689 transitions. [2018-11-06 19:06:54,039 INFO L78 Accepts]: Start accepts. Automaton has 209107 states and 216689 transitions. Word has length 996 [2018-11-06 19:06:54,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:06:54,039 INFO L480 AbstractCegarLoop]: Abstraction has 209107 states and 216689 transitions. [2018-11-06 19:06:54,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 19:06:54,040 INFO L276 IsEmpty]: Start isEmpty. Operand 209107 states and 216689 transitions. [2018-11-06 19:06:55,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1102 [2018-11-06 19:06:55,071 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:06:55,072 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 19:06:55,072 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:06:55,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:06:55,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1997874300, now seen corresponding path program 1 times [2018-11-06 19:06:55,073 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:06:55,073 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:06:55,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:06:55,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:06:55,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:06:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:06:56,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 830 proven. 12 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2018-11-06 19:06:56,891 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:06:56,891 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:06:56,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:06:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:06:57,157 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:06:57,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 826 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2018-11-06 19:06:57,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:06:57,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2018-11-06 19:06:57,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 19:06:57,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 19:06:57,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-06 19:06:57,883 INFO L87 Difference]: Start difference. First operand 209107 states and 216689 transitions. Second operand 8 states. Received shutdown request... [2018-11-06 19:07:02,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:07:02,882 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 19:07:02,888 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 19:07:02,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:07:02 BoogieIcfgContainer [2018-11-06 19:07:02,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 19:07:02,889 INFO L168 Benchmark]: Toolchain (without parser) took 221952.60 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -787.7 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-11-06 19:07:02,891 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 19:07:02,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2283.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-11-06 19:07:02,892 INFO L168 Benchmark]: Boogie Procedure Inliner took 670.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 777.5 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -979.0 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. [2018-11-06 19:07:02,893 INFO L168 Benchmark]: Boogie Preprocessor took 334.22 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 56.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-11-06 19:07:02,894 INFO L168 Benchmark]: RCFGBuilder took 8572.12 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 246.9 MB). Free memory was 2.1 GB in the beginning and 2.3 GB in the end (delta: -230.1 MB). Peak memory consumption was 643.4 MB. Max. memory is 7.1 GB. [2018-11-06 19:07:02,895 INFO L168 Benchmark]: TraceAbstraction took 210087.47 ms. Allocated memory was 2.5 GB in the beginning and 4.7 GB in the end (delta: 2.1 GB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 164.5 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-11-06 19:07:02,900 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2283.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 670.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 777.5 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -979.0 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 334.22 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 56.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8572.12 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 246.9 MB). Free memory was 2.1 GB in the beginning and 2.3 GB in the end (delta: -230.1 MB). Peak memory consumption was 643.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210087.47 ms. Allocated memory was 2.5 GB in the beginning and 4.7 GB in the end (delta: 2.1 GB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 164.5 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 81). Cancelled while BasicCegarLoop was constructing difference of abstraction (209107states) and FLOYD_HOARE automaton (currently 5 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (47798 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 210.0s OverallTime, 14 OverallIterations, 6 TraceHistogramMax, 164.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7930 SDtfs, 58318 SDslu, 1583 SDs, 0 SdLazy, 94238 SolverSat, 21263 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 125.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4669 GetRequests, 4580 SyntacticMatches, 16 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221157occurred in iteration=12, 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: 17.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 87700 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 17.5s InterpolantComputationTime, 11714 NumberOfCodeBlocks, 11714 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 11693 ConstructedInterpolants, 24 QuantifiedInterpolants, 22362169 SizeOfPredicates, 6 NumberOfNonLiveVariables, 5565 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 21 InterpolantComputations, 12 PerfectInterpolantSequences, 12376/12986 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown