java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label17_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:42:12,581 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:42:12,585 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:42:12,602 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:42:12,602 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:42:12,603 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:42:12,605 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:42:12,607 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:42:12,608 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:42:12,609 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:42:12,610 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:42:12,611 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:42:12,612 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:42:12,613 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:42:12,614 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:42:12,615 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:42:12,616 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:42:12,618 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:42:12,620 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:42:12,622 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:42:12,623 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:42:12,624 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:42:12,627 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 14:42:12,636 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 14:42:12,660 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:42:12,660 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:42:12,661 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:42:12,662 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:42:12,662 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:42:12,662 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:42:12,663 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:42:12,663 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:42:12,663 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:42:12,663 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:42:12,663 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:42:12,664 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:42:12,664 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:42:12,664 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:42:12,664 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:42:12,664 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:42:12,665 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:42:12,665 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:42:12,665 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:42:12,665 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:42:12,665 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:42:12,666 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:42:12,666 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:42:12,666 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:42:12,666 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:42:12,666 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:42:12,667 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:42:12,667 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:42:12,709 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:42:12,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:42:12,728 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:42:12,729 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:42:12,730 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:42:12,731 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label17_false-unreach-call.c [2018-10-24 14:42:12,790 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/07f7124c1/024b65dd29ed47fe9043672db4611025/FLAG9aa331586 [2018-10-24 14:42:13,666 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:42:13,667 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label17_false-unreach-call.c [2018-10-24 14:42:13,710 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/07f7124c1/024b65dd29ed47fe9043672db4611025/FLAG9aa331586 [2018-10-24 14:42:13,725 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/07f7124c1/024b65dd29ed47fe9043672db4611025 [2018-10-24 14:42:13,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:42:13,739 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:42:13,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:42:13,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:42:13,746 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:42:13,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:42:13" (1/1) ... [2018-10-24 14:42:13,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3461d56f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:42:13, skipping insertion in model container [2018-10-24 14:42:13,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:42:13" (1/1) ... [2018-10-24 14:42:13,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:42:14,028 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:42:16,079 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:42:16,084 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:42:17,191 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:42:17,254 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:42:17,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:42:17 WrapperNode [2018-10-24 14:42:17,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:42:17,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:42:17,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:42:17,257 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:42:17,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:42:17" (1/1) ... [2018-10-24 14:42:17,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:42:17" (1/1) ... [2018-10-24 14:42:18,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:42:18,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:42:18,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:42:18,478 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:42:18,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:42:17" (1/1) ... [2018-10-24 14:42:18,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:42:17" (1/1) ... [2018-10-24 14:42:18,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:42:17" (1/1) ... [2018-10-24 14:42:18,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:42:17" (1/1) ... [2018-10-24 14:42:18,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:42:17" (1/1) ... [2018-10-24 14:42:19,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:42:17" (1/1) ... [2018-10-24 14:42:19,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:42:17" (1/1) ... [2018-10-24 14:42:19,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:42:19,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:42:19,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:42:19,298 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:42:19,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:42:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:42:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:42:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:42:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:42:36,284 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:42:36,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:42:36 BoogieIcfgContainer [2018-10-24 14:42:36,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:42:36,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:42:36,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:42:36,290 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:42:36,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:42:13" (1/3) ... [2018-10-24 14:42:36,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492f8e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:42:36, skipping insertion in model container [2018-10-24 14:42:36,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:42:17" (2/3) ... [2018-10-24 14:42:36,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492f8e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:42:36, skipping insertion in model container [2018-10-24 14:42:36,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:42:36" (3/3) ... [2018-10-24 14:42:36,295 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label17_false-unreach-call.c [2018-10-24 14:42:36,305 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:42:36,317 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:42:36,335 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:42:36,386 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:42:36,387 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:42:36,387 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:42:36,387 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:42:36,388 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:42:36,388 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:42:36,388 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:42:36,388 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:42:36,388 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:42:36,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 14:42:36,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-24 14:42:36,447 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:42:36,448 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:42:36,451 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:42:36,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:42:36,457 INFO L82 PathProgramCache]: Analyzing trace with hash -159296518, now seen corresponding path program 1 times [2018-10-24 14:42:36,458 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:42:36,459 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:42:36,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:42:36,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:42:36,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:42:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:42:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:42:36,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:42:36,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:42:36,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:42:36,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:42:36,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:42:36,815 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 14:42:58,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:42:58,659 INFO L93 Difference]: Finished difference Result 6323 states and 12077 transitions. [2018-10-24 14:42:58,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:42:58,662 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-10-24 14:42:58,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:42:58,720 INFO L225 Difference]: With dead ends: 6323 [2018-10-24 14:42:58,721 INFO L226 Difference]: Without dead ends: 4567 [2018-10-24 14:42:58,732 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:42:58,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4567 states. [2018-10-24 14:42:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4567 to 4565. [2018-10-24 14:42:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4565 states. [2018-10-24 14:42:58,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4565 states to 4565 states and 7747 transitions. [2018-10-24 14:42:58,958 INFO L78 Accepts]: Start accepts. Automaton has 4565 states and 7747 transitions. Word has length 11 [2018-10-24 14:42:58,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:42:58,959 INFO L481 AbstractCegarLoop]: Abstraction has 4565 states and 7747 transitions. [2018-10-24 14:42:58,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:42:58,959 INFO L276 IsEmpty]: Start isEmpty. Operand 4565 states and 7747 transitions. [2018-10-24 14:42:58,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-24 14:42:58,963 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:42:58,964 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] [2018-10-24 14:42:58,964 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:42:58,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:42:58,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1872032019, now seen corresponding path program 1 times [2018-10-24 14:42:58,965 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:42:58,965 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:42:58,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:42:58,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:42:58,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:42:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:42:59,506 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:42:59,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:42:59,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:42:59,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:42:59,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:42:59,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:42:59,513 INFO L87 Difference]: Start difference. First operand 4565 states and 7747 transitions. Second operand 5 states. [2018-10-24 14:43:21,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:43:21,182 INFO L93 Difference]: Finished difference Result 10504 states and 17448 transitions. [2018-10-24 14:43:21,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:43:21,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 86 [2018-10-24 14:43:21,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:43:21,214 INFO L225 Difference]: With dead ends: 10504 [2018-10-24 14:43:21,215 INFO L226 Difference]: Without dead ends: 5941 [2018-10-24 14:43:21,221 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:43:21,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5941 states. [2018-10-24 14:43:21,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5941 to 5937. [2018-10-24 14:43:21,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5937 states. [2018-10-24 14:43:21,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5937 states to 5937 states and 8927 transitions. [2018-10-24 14:43:21,331 INFO L78 Accepts]: Start accepts. Automaton has 5937 states and 8927 transitions. Word has length 86 [2018-10-24 14:43:21,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:43:21,332 INFO L481 AbstractCegarLoop]: Abstraction has 5937 states and 8927 transitions. [2018-10-24 14:43:21,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:43:21,332 INFO L276 IsEmpty]: Start isEmpty. Operand 5937 states and 8927 transitions. [2018-10-24 14:43:21,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-24 14:43:21,335 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:43:21,336 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] [2018-10-24 14:43:21,336 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:43:21,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:43:21,337 INFO L82 PathProgramCache]: Analyzing trace with hash 335857981, now seen corresponding path program 1 times [2018-10-24 14:43:21,337 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:43:21,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:43:21,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:43:21,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:43:21,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:43:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:43:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:43:21,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:43:21,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:43:21,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:43:21,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:43:21,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:43:21,679 INFO L87 Difference]: Start difference. First operand 5937 states and 8927 transitions. Second operand 4 states. [2018-10-24 14:43:46,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:43:46,648 INFO L93 Difference]: Finished difference Result 23018 states and 34752 transitions. [2018-10-24 14:43:46,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:43:46,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2018-10-24 14:43:46,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:43:46,729 INFO L225 Difference]: With dead ends: 23018 [2018-10-24 14:43:46,729 INFO L226 Difference]: Without dead ends: 17083 [2018-10-24 14:43:46,741 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:43:46,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17083 states. [2018-10-24 14:43:46,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17083 to 11395. [2018-10-24 14:43:46,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11395 states. [2018-10-24 14:43:46,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11395 states to 11395 states and 16647 transitions. [2018-10-24 14:43:46,976 INFO L78 Accepts]: Start accepts. Automaton has 11395 states and 16647 transitions. Word has length 89 [2018-10-24 14:43:46,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:43:46,977 INFO L481 AbstractCegarLoop]: Abstraction has 11395 states and 16647 transitions. [2018-10-24 14:43:46,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:43:46,977 INFO L276 IsEmpty]: Start isEmpty. Operand 11395 states and 16647 transitions. [2018-10-24 14:43:46,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-24 14:43:46,980 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:43:46,980 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] [2018-10-24 14:43:46,980 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:43:46,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:43:46,980 INFO L82 PathProgramCache]: Analyzing trace with hash -204938979, now seen corresponding path program 1 times [2018-10-24 14:43:46,981 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:43:46,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:43:46,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:43:46,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:43:46,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:43:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:43:47,274 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:43:47,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:43:47,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:43:47,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:43:47,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:43:47,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:43:47,276 INFO L87 Difference]: Start difference. First operand 11395 states and 16647 transitions. Second operand 4 states. [2018-10-24 14:44:08,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:44:08,790 INFO L93 Difference]: Finished difference Result 44916 states and 65753 transitions. [2018-10-24 14:44:08,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:44:08,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2018-10-24 14:44:08,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:44:08,862 INFO L225 Difference]: With dead ends: 44916 [2018-10-24 14:44:08,862 INFO L226 Difference]: Without dead ends: 33523 [2018-10-24 14:44:08,886 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:44:09,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33523 states. [2018-10-24 14:44:09,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33523 to 33512. [2018-10-24 14:44:09,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33512 states. [2018-10-24 14:44:09,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33512 states to 33512 states and 42816 transitions. [2018-10-24 14:44:09,537 INFO L78 Accepts]: Start accepts. Automaton has 33512 states and 42816 transitions. Word has length 109 [2018-10-24 14:44:09,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:44:09,537 INFO L481 AbstractCegarLoop]: Abstraction has 33512 states and 42816 transitions. [2018-10-24 14:44:09,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:44:09,538 INFO L276 IsEmpty]: Start isEmpty. Operand 33512 states and 42816 transitions. [2018-10-24 14:44:09,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-24 14:44:09,540 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:44:09,540 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] [2018-10-24 14:44:09,541 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:44:09,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:44:09,543 INFO L82 PathProgramCache]: Analyzing trace with hash 409216838, now seen corresponding path program 1 times [2018-10-24 14:44:09,544 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:44:09,544 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:44:09,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:09,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:44:09,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:44:10,426 WARN L179 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-24 14:44:11,101 WARN L179 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-24 14:44:11,157 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:44:11,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:44:11,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:44:11,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:44:11,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:44:11,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:44:11,159 INFO L87 Difference]: Start difference. First operand 33512 states and 42816 transitions. Second operand 6 states. [2018-10-24 14:44:41,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:44:41,297 INFO L93 Difference]: Finished difference Result 105359 states and 132966 transitions. [2018-10-24 14:44:41,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:44:41,297 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-10-24 14:44:41,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:44:41,397 INFO L225 Difference]: With dead ends: 105359 [2018-10-24 14:44:41,397 INFO L226 Difference]: Without dead ends: 71849 [2018-10-24 14:44:41,435 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:44:41,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71849 states. [2018-10-24 14:44:42,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71849 to 70407. [2018-10-24 14:44:42,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70407 states. [2018-10-24 14:44:42,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70407 states to 70407 states and 87504 transitions. [2018-10-24 14:44:42,247 INFO L78 Accepts]: Start accepts. Automaton has 70407 states and 87504 transitions. Word has length 116 [2018-10-24 14:44:42,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:44:42,248 INFO L481 AbstractCegarLoop]: Abstraction has 70407 states and 87504 transitions. [2018-10-24 14:44:42,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:44:42,248 INFO L276 IsEmpty]: Start isEmpty. Operand 70407 states and 87504 transitions. [2018-10-24 14:44:42,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-10-24 14:44:42,250 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:44:42,251 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] [2018-10-24 14:44:42,251 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:44:42,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:44:42,251 INFO L82 PathProgramCache]: Analyzing trace with hash 108218592, now seen corresponding path program 1 times [2018-10-24 14:44:42,252 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:44:42,252 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:44:42,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:42,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:44:42,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:44:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-24 14:44:42,655 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:44:42,655 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:44:42,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:44:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:44:42,766 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:44:42,958 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:44:42,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:44:42,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 14:44:42,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:44:42,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:44:42,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:44:42,994 INFO L87 Difference]: Start difference. First operand 70407 states and 87504 transitions. Second operand 5 states. [2018-10-24 14:45:16,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:45:16,852 INFO L93 Difference]: Finished difference Result 292617 states and 365616 transitions. [2018-10-24 14:45:16,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:45:16,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 247 [2018-10-24 14:45:16,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:45:17,307 INFO L225 Difference]: With dead ends: 292617 [2018-10-24 14:45:17,308 INFO L226 Difference]: Without dead ends: 222212 [2018-10-24 14:45:17,400 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:45:17,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222212 states. [2018-10-24 14:45:20,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222212 to 172862. [2018-10-24 14:45:20,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172862 states. [2018-10-24 14:45:20,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172862 states to 172862 states and 204798 transitions. [2018-10-24 14:45:20,435 INFO L78 Accepts]: Start accepts. Automaton has 172862 states and 204798 transitions. Word has length 247 [2018-10-24 14:45:20,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:45:20,436 INFO L481 AbstractCegarLoop]: Abstraction has 172862 states and 204798 transitions. [2018-10-24 14:45:20,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:45:20,436 INFO L276 IsEmpty]: Start isEmpty. Operand 172862 states and 204798 transitions. [2018-10-24 14:45:20,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 941 [2018-10-24 14:45:20,475 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:45:20,476 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] [2018-10-24 14:45:20,476 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:45:20,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:45:20,477 INFO L82 PathProgramCache]: Analyzing trace with hash -836443827, now seen corresponding path program 1 times [2018-10-24 14:45:20,477 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:45:20,477 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:45:20,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:20,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:45:20,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:45:21,483 WARN L179 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-24 14:45:23,560 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 352 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-10-24 14:45:23,560 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:45:23,560 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:45:23,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:45:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:45:23,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:45:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-10-24 14:45:24,411 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:45:24,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 14:45:24,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:45:24,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:45:24,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:45:24,414 INFO L87 Difference]: Start difference. First operand 172862 states and 204798 transitions. Second operand 5 states. [2018-10-24 14:45:45,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:45:45,746 INFO L93 Difference]: Finished difference Result 359385 states and 423842 transitions. [2018-10-24 14:45:45,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:45:45,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 940 [2018-10-24 14:45:45,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:45:45,986 INFO L225 Difference]: With dead ends: 359385 [2018-10-24 14:45:45,986 INFO L226 Difference]: Without dead ends: 182424 [2018-10-24 14:45:46,087 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 949 GetRequests, 940 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:45:46,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182424 states. [2018-10-24 14:45:47,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182424 to 181056. [2018-10-24 14:45:47,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181056 states. [2018-10-24 14:45:47,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181056 states to 181056 states and 201314 transitions. [2018-10-24 14:45:47,805 INFO L78 Accepts]: Start accepts. Automaton has 181056 states and 201314 transitions. Word has length 940 [2018-10-24 14:45:47,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:45:47,805 INFO L481 AbstractCegarLoop]: Abstraction has 181056 states and 201314 transitions. [2018-10-24 14:45:47,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:45:47,805 INFO L276 IsEmpty]: Start isEmpty. Operand 181056 states and 201314 transitions. [2018-10-24 14:45:47,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1000 [2018-10-24 14:45:47,853 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:45:47,854 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] [2018-10-24 14:45:47,855 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:45:47,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:45:47,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1582650216, now seen corresponding path program 1 times [2018-10-24 14:45:47,855 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:45:47,855 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:45:47,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:47,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:45:47,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:45:50,443 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2018-10-24 14:45:50,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:45:50,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:45:50,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:45:50,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:45:50,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:45:50,445 INFO L87 Difference]: Start difference. First operand 181056 states and 201314 transitions. Second operand 3 states. [2018-10-24 14:46:01,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:46:01,617 INFO L93 Difference]: Finished difference Result 433204 states and 479806 transitions. [2018-10-24 14:46:01,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:46:01,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 999 [2018-10-24 14:46:01,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:46:01,973 INFO L225 Difference]: With dead ends: 433204 [2018-10-24 14:46:01,973 INFO L226 Difference]: Without dead ends: 252150 [2018-10-24 14:46:02,105 INFO L605 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 [2018-10-24 14:46:02,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252150 states. [2018-10-24 14:46:05,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252150 to 246615. [2018-10-24 14:46:05,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246615 states. Received shutdown request... [2018-10-24 14:46:07,213 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:46:07,218 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:46:07,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:46:07 BoogieIcfgContainer [2018-10-24 14:46:07,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:46:07,219 INFO L168 Benchmark]: Toolchain (without parser) took 233481.43 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -262.5 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-10-24 14:46:07,220 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-10-24 14:46:07,221 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3515.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 978.6 MB in the end (delta: 404.3 MB). Peak memory consumption was 404.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:46:07,222 INFO L168 Benchmark]: Boogie Procedure Inliner took 1221.31 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 851.4 MB). Free memory was 978.6 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 106.5 MB. Max. memory is 7.1 GB. [2018-10-24 14:46:07,223 INFO L168 Benchmark]: Boogie Preprocessor took 819.06 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: 102.3 MB). Peak memory consumption was 102.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:46:07,225 INFO L168 Benchmark]: RCFGBuilder took 16988.24 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 278.4 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 509.4 MB). Peak memory consumption was 787.8 MB. Max. memory is 7.1 GB. [2018-10-24 14:46:07,226 INFO L168 Benchmark]: TraceAbstraction took 210931.67 ms. Allocated memory was 2.6 GB in the beginning and 3.5 GB in the end (delta: 886.0 MB). Free memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: -147.4 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 14:46:07,231 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 3515.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 978.6 MB in the end (delta: 404.3 MB). Peak memory consumption was 404.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1221.31 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 851.4 MB). Free memory was 978.6 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 106.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 819.06 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: 102.3 MB). Peak memory consumption was 102.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16988.24 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 278.4 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 509.4 MB). Peak memory consumption was 787.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210931.67 ms. Allocated memory was 2.6 GB in the beginning and 3.5 GB in the end (delta: 886.0 MB). Free memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: -147.4 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 46]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 46). Cancelled while ReachableStatesComputation was computing reachable states (67355 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 210.8s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 188.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7870 SDtfs, 35038 SDslu, 3139 SDs, 0 SdLazy, 76754 SolverSat, 17880 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 159.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1226 GetRequests, 1194 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=181056occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 11.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 57865 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 3784 NumberOfCodeBlocks, 3784 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3774 ConstructedInterpolants, 0 QuantifiedInterpolants, 7632720 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1374 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 1601/1610 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown