java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label17_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 19:41:32,372 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 19:41:32,374 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 19:41:32,393 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 19:41:32,393 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 19:41:32,395 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 19:41:32,396 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 19:41:32,398 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 19:41:32,399 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 19:41:32,400 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 19:41:32,401 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 19:41:32,401 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 19:41:32,402 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 19:41:32,403 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 19:41:32,405 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 19:41:32,405 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 19:41:32,406 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 19:41:32,408 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 19:41:32,410 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 19:41:32,412 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 19:41:32,413 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 19:41:32,414 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 19:41:32,417 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 19:41:32,417 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 19:41:32,417 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 19:41:32,418 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 19:41:32,419 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 19:41:32,420 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 19:41:32,421 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 19:41:32,422 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 19:41:32,422 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 19:41:32,423 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 19:41:32,425 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 19:41:32,440 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 19:41:32,441 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 19:41:32,441 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 19:41:32,442 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 19:41:32,442 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 19:41:32,443 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 19:41:32,443 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 19:41:32,443 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 19:41:32,443 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 19:41:32,443 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 19:41:32,444 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 19:41:32,444 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 19:41:32,444 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 19:41:32,444 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 19:41:32,444 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 19:41:32,445 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 19:41:32,445 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 19:41:32,445 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 19:41:32,445 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 19:41:32,445 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:41:32,446 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 19:41:32,446 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 19:41:32,446 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 19:41:32,446 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 19:41:32,446 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 19:41:32,446 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 19:41:32,447 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 19:41:32,447 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 19:41:32,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 19:41:32,535 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 19:41:32,539 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 19:41:32,540 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 19:41:32,541 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 19:41:32,542 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label17_false-unreach-call.c [2018-11-06 19:41:32,617 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce4d6cc4a/4495a9945e1a49d7837e0e0a4d57ea54/FLAG639dbef5d [2018-11-06 19:41:33,655 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 19:41:33,656 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label17_false-unreach-call.c [2018-11-06 19:41:33,698 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce4d6cc4a/4495a9945e1a49d7837e0e0a4d57ea54/FLAG639dbef5d [2018-11-06 19:41:33,714 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce4d6cc4a/4495a9945e1a49d7837e0e0a4d57ea54 [2018-11-06 19:41:33,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 19:41:33,728 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 19:41:33,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 19:41:33,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 19:41:33,733 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 19:41:33,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:41:33" (1/1) ... [2018-11-06 19:41:33,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac76325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:41:33, skipping insertion in model container [2018-11-06 19:41:33,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:41:33" (1/1) ... [2018-11-06 19:41:33,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 19:41:33,997 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 19:41:36,102 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:41:36,107 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 19:41:37,068 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:41:37,122 INFO L193 MainTranslator]: Completed translation [2018-11-06 19:41:37,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:41:37 WrapperNode [2018-11-06 19:41:37,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 19:41:37,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 19:41:37,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 19:41:37,125 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 19:41:37,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:41:37" (1/1) ... [2018-11-06 19:41:37,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:41:37" (1/1) ... [2018-11-06 19:41:38,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 19:41:38,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 19:41:38,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 19:41:38,330 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 19:41:38,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:41:37" (1/1) ... [2018-11-06 19:41:38,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:41:37" (1/1) ... [2018-11-06 19:41:38,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:41:37" (1/1) ... [2018-11-06 19:41:38,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:41:37" (1/1) ... [2018-11-06 19:41:38,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:41:37" (1/1) ... [2018-11-06 19:41:38,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:41:37" (1/1) ... [2018-11-06 19:41:39,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:41:37" (1/1) ... [2018-11-06 19:41:39,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 19:41:39,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 19:41:39,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 19:41:39,297 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 19:41:39,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:41:37" (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 19:41:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 19:41:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 19:41:39,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 19:41:56,862 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 19:41:56,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:41:56 BoogieIcfgContainer [2018-11-06 19:41:56,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 19:41:56,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 19:41:56,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 19:41:56,867 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 19:41:56,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:41:33" (1/3) ... [2018-11-06 19:41:57,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da0d806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:41:57, skipping insertion in model container [2018-11-06 19:41:57,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:41:37" (2/3) ... [2018-11-06 19:41:57,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da0d806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:41:57, skipping insertion in model container [2018-11-06 19:41:57,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:41:56" (3/3) ... [2018-11-06 19:41:57,141 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label17_false-unreach-call.c [2018-11-06 19:41:57,157 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 19:41:57,168 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 19:41:57,185 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 19:41:57,242 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 19:41:57,243 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 19:41:57,243 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 19:41:57,243 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 19:41:57,243 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 19:41:57,243 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 19:41:57,243 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 19:41:57,244 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 19:41:57,244 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 19:41:57,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-11-06 19:41:57,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-06 19:41:57,317 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:41:57,318 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:41:57,320 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:41:57,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:41:57,328 INFO L82 PathProgramCache]: Analyzing trace with hash -159296518, now seen corresponding path program 1 times [2018-11-06 19:41:57,330 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:41:57,331 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:41:57,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:41:57,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:41:57,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:41:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:41:57,643 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 19:41:57,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:41:57,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:41:57,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:41:57,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:41:57,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:41:57,672 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-11-06 19:42:16,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:42:16,312 INFO L93 Difference]: Finished difference Result 6323 states and 12077 transitions. [2018-11-06 19:42:16,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:42:16,315 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-06 19:42:16,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:42:16,375 INFO L225 Difference]: With dead ends: 6323 [2018-11-06 19:42:16,375 INFO L226 Difference]: Without dead ends: 4567 [2018-11-06 19:42:16,387 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 19:42:16,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4567 states. [2018-11-06 19:42:16,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4567 to 4565. [2018-11-06 19:42:16,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4565 states. [2018-11-06 19:42:16,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4565 states to 4565 states and 7747 transitions. [2018-11-06 19:42:16,607 INFO L78 Accepts]: Start accepts. Automaton has 4565 states and 7747 transitions. Word has length 11 [2018-11-06 19:42:16,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:42:16,607 INFO L480 AbstractCegarLoop]: Abstraction has 4565 states and 7747 transitions. [2018-11-06 19:42:16,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:42:16,607 INFO L276 IsEmpty]: Start isEmpty. Operand 4565 states and 7747 transitions. [2018-11-06 19:42:16,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-11-06 19:42:16,612 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:42:16,613 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 19:42:16,613 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:42:16,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:42:16,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1872032019, now seen corresponding path program 1 times [2018-11-06 19:42:16,615 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:42:16,615 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:42:16,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:42:16,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:42:16,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:42:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:42:17,013 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:42:17,013 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:42:17,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:42:17,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:42:17,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:42:17,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:42:17,016 INFO L87 Difference]: Start difference. First operand 4565 states and 7747 transitions. Second operand 5 states. [2018-11-06 19:42:33,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:42:33,095 INFO L93 Difference]: Finished difference Result 10504 states and 17448 transitions. [2018-11-06 19:42:33,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:42:33,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 86 [2018-11-06 19:42:33,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:42:33,128 INFO L225 Difference]: With dead ends: 10504 [2018-11-06 19:42:33,128 INFO L226 Difference]: Without dead ends: 5941 [2018-11-06 19:42:33,136 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:42:33,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5941 states. [2018-11-06 19:42:33,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5941 to 5937. [2018-11-06 19:42:33,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5937 states. [2018-11-06 19:42:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5937 states to 5937 states and 8927 transitions. [2018-11-06 19:42:33,266 INFO L78 Accepts]: Start accepts. Automaton has 5937 states and 8927 transitions. Word has length 86 [2018-11-06 19:42:33,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:42:33,267 INFO L480 AbstractCegarLoop]: Abstraction has 5937 states and 8927 transitions. [2018-11-06 19:42:33,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:42:33,267 INFO L276 IsEmpty]: Start isEmpty. Operand 5937 states and 8927 transitions. [2018-11-06 19:42:33,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-11-06 19:42:33,271 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:42:33,271 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 19:42:33,271 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:42:33,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:42:33,272 INFO L82 PathProgramCache]: Analyzing trace with hash 335857981, now seen corresponding path program 1 times [2018-11-06 19:42:33,272 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:42:33,272 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:42:33,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:42:33,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:42:33,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:42:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:42:33,601 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:42:33,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:42:33,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:42:33,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:42:33,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:42:33,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:42:33,603 INFO L87 Difference]: Start difference. First operand 5937 states and 8927 transitions. Second operand 4 states. [2018-11-06 19:42:52,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:42:52,009 INFO L93 Difference]: Finished difference Result 23018 states and 34752 transitions. [2018-11-06 19:42:52,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:42:52,012 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2018-11-06 19:42:52,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:42:52,099 INFO L225 Difference]: With dead ends: 23018 [2018-11-06 19:42:52,099 INFO L226 Difference]: Without dead ends: 17083 [2018-11-06 19:42:52,117 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 19:42:52,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17083 states. [2018-11-06 19:42:52,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17083 to 11395. [2018-11-06 19:42:52,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11395 states. [2018-11-06 19:42:52,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11395 states to 11395 states and 16647 transitions. [2018-11-06 19:42:52,389 INFO L78 Accepts]: Start accepts. Automaton has 11395 states and 16647 transitions. Word has length 89 [2018-11-06 19:42:52,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:42:52,390 INFO L480 AbstractCegarLoop]: Abstraction has 11395 states and 16647 transitions. [2018-11-06 19:42:52,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:42:52,390 INFO L276 IsEmpty]: Start isEmpty. Operand 11395 states and 16647 transitions. [2018-11-06 19:42:52,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-06 19:42:52,393 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:42:52,393 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 19:42:52,394 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:42:52,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:42:52,397 INFO L82 PathProgramCache]: Analyzing trace with hash -204938979, now seen corresponding path program 1 times [2018-11-06 19:42:52,397 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:42:52,397 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:42:52,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:42:52,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:42:52,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:42:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:42:52,756 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:42:52,756 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:42:52,756 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:42:52,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:42:52,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:42:52,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:42:52,759 INFO L87 Difference]: Start difference. First operand 11395 states and 16647 transitions. Second operand 4 states. [2018-11-06 19:43:09,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:43:09,151 INFO L93 Difference]: Finished difference Result 44916 states and 65753 transitions. [2018-11-06 19:43:09,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:43:09,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2018-11-06 19:43:09,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:43:09,229 INFO L225 Difference]: With dead ends: 44916 [2018-11-06 19:43:09,229 INFO L226 Difference]: Without dead ends: 33523 [2018-11-06 19:43:09,252 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 19:43:09,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33523 states. [2018-11-06 19:43:09,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33523 to 33512. [2018-11-06 19:43:09,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33512 states. [2018-11-06 19:43:09,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33512 states to 33512 states and 42816 transitions. [2018-11-06 19:43:09,983 INFO L78 Accepts]: Start accepts. Automaton has 33512 states and 42816 transitions. Word has length 109 [2018-11-06 19:43:09,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:43:09,984 INFO L480 AbstractCegarLoop]: Abstraction has 33512 states and 42816 transitions. [2018-11-06 19:43:09,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:43:09,984 INFO L276 IsEmpty]: Start isEmpty. Operand 33512 states and 42816 transitions. [2018-11-06 19:43:09,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-11-06 19:43:09,989 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:43:09,989 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 19:43:09,989 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:43:09,993 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:43:09,993 INFO L82 PathProgramCache]: Analyzing trace with hash 409216838, now seen corresponding path program 1 times [2018-11-06 19:43:09,994 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:43:09,994 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:43:09,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:43:09,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:43:09,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:43:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:43:10,370 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-06 19:43:10,920 WARN L179 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-11-06 19:43:11,653 WARN L179 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-11-06 19:43:11,726 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:43:11,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:43:11,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 19:43:11,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 19:43:11,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 19:43:11,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:43:11,728 INFO L87 Difference]: Start difference. First operand 33512 states and 42816 transitions. Second operand 6 states. [2018-11-06 19:43:38,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:43:38,475 INFO L93 Difference]: Finished difference Result 105359 states and 132966 transitions. [2018-11-06 19:43:38,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 19:43:38,476 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-11-06 19:43:38,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:43:38,629 INFO L225 Difference]: With dead ends: 105359 [2018-11-06 19:43:38,629 INFO L226 Difference]: Without dead ends: 71849 [2018-11-06 19:43:38,675 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-11-06 19:43:38,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71849 states. [2018-11-06 19:43:39,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71849 to 70407. [2018-11-06 19:43:39,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70407 states. [2018-11-06 19:43:39,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70407 states to 70407 states and 87504 transitions. [2018-11-06 19:43:39,871 INFO L78 Accepts]: Start accepts. Automaton has 70407 states and 87504 transitions. Word has length 116 [2018-11-06 19:43:39,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:43:39,872 INFO L480 AbstractCegarLoop]: Abstraction has 70407 states and 87504 transitions. [2018-11-06 19:43:39,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 19:43:39,872 INFO L276 IsEmpty]: Start isEmpty. Operand 70407 states and 87504 transitions. [2018-11-06 19:43:39,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-11-06 19:43:39,875 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:43:39,875 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 19:43:39,876 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:43:39,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:43:39,876 INFO L82 PathProgramCache]: Analyzing trace with hash 108218592, now seen corresponding path program 1 times [2018-11-06 19:43:39,876 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:43:39,876 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:43:39,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:43:39,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:43:39,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:43:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:43:40,206 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-06 19:43:40,206 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:43:40,206 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 19:43:40,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:43:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:43:40,344 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:43:40,455 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:43:40,485 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:43:40,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-11-06 19:43:40,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:43:40,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:43:40,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:43:40,489 INFO L87 Difference]: Start difference. First operand 70407 states and 87504 transitions. Second operand 5 states. [2018-11-06 19:44:04,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:44:04,657 INFO L93 Difference]: Finished difference Result 292617 states and 365616 transitions. [2018-11-06 19:44:04,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:44:04,658 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 247 [2018-11-06 19:44:04,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:44:05,040 INFO L225 Difference]: With dead ends: 292617 [2018-11-06 19:44:05,041 INFO L226 Difference]: Without dead ends: 222212 [2018-11-06 19:44:05,125 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:44:05,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222212 states. [2018-11-06 19:44:08,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222212 to 172862. [2018-11-06 19:44:08,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172862 states. [2018-11-06 19:44:08,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172862 states to 172862 states and 204798 transitions. [2018-11-06 19:44:08,612 INFO L78 Accepts]: Start accepts. Automaton has 172862 states and 204798 transitions. Word has length 247 [2018-11-06 19:44:08,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:44:08,613 INFO L480 AbstractCegarLoop]: Abstraction has 172862 states and 204798 transitions. [2018-11-06 19:44:08,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:44:08,614 INFO L276 IsEmpty]: Start isEmpty. Operand 172862 states and 204798 transitions. [2018-11-06 19:44:08,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 941 [2018-11-06 19:44:08,656 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:44:08,657 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:44:08,658 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:44:08,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:44:08,658 INFO L82 PathProgramCache]: Analyzing trace with hash -836443827, now seen corresponding path program 1 times [2018-11-06 19:44:08,659 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:44:08,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:44:08,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:44:08,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:44:08,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:44:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:44:09,856 WARN L179 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-11-06 19:44:10,547 WARN L179 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-11-06 19:44:12,699 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 352 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-11-06 19:44:12,699 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:44:12,699 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 19:44:12,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:44:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:44:12,970 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:44:13,458 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-11-06 19:44:13,479 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:44:13,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 19:44:13,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:44:13,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:44:13,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:44:13,482 INFO L87 Difference]: Start difference. First operand 172862 states and 204798 transitions. Second operand 5 states. [2018-11-06 19:44:32,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:44:32,557 INFO L93 Difference]: Finished difference Result 359385 states and 423842 transitions. [2018-11-06 19:44:32,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 19:44:32,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 940 [2018-11-06 19:44:32,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:44:32,773 INFO L225 Difference]: With dead ends: 359385 [2018-11-06 19:44:32,773 INFO L226 Difference]: Without dead ends: 182424 [2018-11-06 19:44:32,858 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 949 GetRequests, 940 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:44:33,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182424 states. [2018-11-06 19:44:34,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182424 to 181056. [2018-11-06 19:44:34,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181056 states. [2018-11-06 19:44:34,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181056 states to 181056 states and 201314 transitions. [2018-11-06 19:44:34,634 INFO L78 Accepts]: Start accepts. Automaton has 181056 states and 201314 transitions. Word has length 940 [2018-11-06 19:44:34,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:44:34,634 INFO L480 AbstractCegarLoop]: Abstraction has 181056 states and 201314 transitions. [2018-11-06 19:44:34,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:44:34,635 INFO L276 IsEmpty]: Start isEmpty. Operand 181056 states and 201314 transitions. [2018-11-06 19:44:34,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1000 [2018-11-06 19:44:34,676 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:44:34,677 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:44:34,677 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:44:34,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:44:34,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1582650216, now seen corresponding path program 1 times [2018-11-06 19:44:34,678 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:44:34,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:44:34,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:44:34,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:44:34,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:44:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:44:37,391 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2018-11-06 19:44:37,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:44:37,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:44:37,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:44:37,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:44:37,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:44:37,393 INFO L87 Difference]: Start difference. First operand 181056 states and 201314 transitions. Second operand 3 states. [2018-11-06 19:44:47,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:44:47,452 INFO L93 Difference]: Finished difference Result 433204 states and 479806 transitions. [2018-11-06 19:44:47,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:44:47,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 999 [2018-11-06 19:44:47,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:44:47,774 INFO L225 Difference]: With dead ends: 433204 [2018-11-06 19:44:47,774 INFO L226 Difference]: Without dead ends: 252150 [2018-11-06 19:44:47,883 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 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 19:44:48,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252150 states. [2018-11-06 19:44:51,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252150 to 246615. [2018-11-06 19:44:51,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246615 states. [2018-11-06 19:44:51,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246615 states to 246615 states and 271192 transitions. [2018-11-06 19:44:51,375 INFO L78 Accepts]: Start accepts. Automaton has 246615 states and 271192 transitions. Word has length 999 [2018-11-06 19:44:51,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:44:51,376 INFO L480 AbstractCegarLoop]: Abstraction has 246615 states and 271192 transitions. [2018-11-06 19:44:51,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:44:51,376 INFO L276 IsEmpty]: Start isEmpty. Operand 246615 states and 271192 transitions. [2018-11-06 19:44:51,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2018-11-06 19:44:51,403 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:44:51,404 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:44:51,404 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:44:51,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:44:51,404 INFO L82 PathProgramCache]: Analyzing trace with hash 688065808, now seen corresponding path program 1 times [2018-11-06 19:44:51,405 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:44:51,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:44:51,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:44:51,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:44:51,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:44:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:44:53,669 INFO L134 CoverageAnalysis]: Checked inductivity of 854 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-11-06 19:44:53,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:44:53,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:44:53,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:44:53,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:44:53,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:44:53,671 INFO L87 Difference]: Start difference. First operand 246615 states and 271192 transitions. Second operand 4 states. [2018-11-06 19:45:05,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:45:05,526 INFO L93 Difference]: Finished difference Result 493221 states and 542376 transitions. [2018-11-06 19:45:05,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:45:05,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1059 [2018-11-06 19:45:05,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:45:05,864 INFO L225 Difference]: With dead ends: 493221 [2018-11-06 19:45:05,864 INFO L226 Difference]: Without dead ends: 246608 [2018-11-06 19:45:05,997 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 19:45:06,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246608 states. Received shutdown request... [2018-11-06 19:45:13,434 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 19:45:13,439 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 19:45:13,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:45:13 BoogieIcfgContainer [2018-11-06 19:45:13,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 19:45:13,441 INFO L168 Benchmark]: Toolchain (without parser) took 219714.09 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 3.8 GB in the end (delta: -2.4 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-11-06 19:45:13,442 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 19:45:13,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3395.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-11-06 19:45:13,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 1205.01 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 853.0 MB). Free memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2018-11-06 19:45:13,444 INFO L168 Benchmark]: Boogie Preprocessor took 966.22 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 101.9 MB). Peak memory consumption was 101.9 MB. Max. memory is 7.1 GB. [2018-11-06 19:45:13,445 INFO L168 Benchmark]: RCFGBuilder took 17566.44 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 292.6 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 499.4 MB). Peak memory consumption was 792.0 MB. Max. memory is 7.1 GB. [2018-11-06 19:45:13,446 INFO L168 Benchmark]: TraceAbstraction took 196575.90 ms. Allocated memory was 2.7 GB in the beginning and 4.7 GB in the end (delta: 2.0 GB). Free memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: -2.2 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-06 19:45:13,458 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3395.03 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1205.01 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 853.0 MB). Free memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 966.22 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 101.9 MB). Peak memory consumption was 101.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17566.44 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 292.6 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 499.4 MB). Peak memory consumption was 792.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 196575.90 ms. Allocated memory was 2.7 GB in the beginning and 4.7 GB in the end (delta: 2.0 GB). Free memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: -2.2 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 46]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 46). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 196.2s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 163.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9913 SDtfs, 39247 SDslu, 3415 SDs, 0 SdLazy, 82540 SolverSat, 18987 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 129.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1231 GetRequests, 1196 SyntacticMatches, 10 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=246615occurred in iteration=8, 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: 18.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 63400 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 4843 NumberOfCodeBlocks, 4843 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 4832 ConstructedInterpolants, 0 QuantifiedInterpolants, 9557222 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1374 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 2455/2464 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown