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_label22_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 19:42:34,536 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 19:42:34,538 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 19:42:34,550 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 19:42:34,550 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 19:42:34,551 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 19:42:34,553 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 19:42:34,555 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 19:42:34,557 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 19:42:34,557 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 19:42:34,558 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 19:42:34,559 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 19:42:34,559 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 19:42:34,560 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 19:42:34,562 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 19:42:34,562 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 19:42:34,563 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 19:42:34,565 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 19:42:34,567 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 19:42:34,569 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 19:42:34,570 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 19:42:34,571 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 19:42:34,574 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 19:42:34,574 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 19:42:34,574 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 19:42:34,575 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 19:42:34,576 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 19:42:34,577 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 19:42:34,578 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 19:42:34,579 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 19:42:34,580 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 19:42:34,580 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 19:42:34,583 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 19:42:34,598 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 19:42:34,598 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 19:42:34,599 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 19:42:34,599 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 19:42:34,600 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 19:42:34,600 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 19:42:34,600 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 19:42:34,600 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 19:42:34,600 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 19:42:34,601 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 19:42:34,601 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 19:42:34,601 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 19:42:34,601 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 19:42:34,601 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 19:42:34,602 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 19:42:34,602 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 19:42:34,602 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 19:42:34,602 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 19:42:34,602 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 19:42:34,603 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:42:34,603 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 19:42:34,603 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 19:42:34,603 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 19:42:34,603 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 19:42:34,604 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 19:42:34,604 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 19:42:34,604 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 19:42:34,604 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 19:42:34,664 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 19:42:34,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 19:42:34,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 19:42:34,685 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 19:42:34,685 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 19:42:34,686 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label22_false-unreach-call.c [2018-11-06 19:42:34,749 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7808307a7/c8099c5df75c4497b4757f498aed93f6/FLAGa9d8af964 [2018-11-06 19:42:35,691 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 19:42:35,692 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label22_false-unreach-call.c [2018-11-06 19:42:35,744 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7808307a7/c8099c5df75c4497b4757f498aed93f6/FLAGa9d8af964 [2018-11-06 19:42:35,761 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7808307a7/c8099c5df75c4497b4757f498aed93f6 [2018-11-06 19:42:35,773 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 19:42:35,774 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 19:42:35,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 19:42:35,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 19:42:35,780 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 19:42:35,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:42:35" (1/1) ... [2018-11-06 19:42:35,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@687246ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:42:35, skipping insertion in model container [2018-11-06 19:42:35,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:42:35" (1/1) ... [2018-11-06 19:42:35,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 19:42:36,038 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 19:42:38,100 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:42:38,110 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 19:42:39,177 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:42:39,244 INFO L193 MainTranslator]: Completed translation [2018-11-06 19:42:39,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:42:39 WrapperNode [2018-11-06 19:42:39,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 19:42:39,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 19:42:39,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 19:42:39,248 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 19:42:39,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:42:39" (1/1) ... [2018-11-06 19:42:39,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:42:39" (1/1) ... [2018-11-06 19:42:40,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 19:42:40,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 19:42:40,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 19:42:40,421 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 19:42:40,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:42:39" (1/1) ... [2018-11-06 19:42:40,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:42:39" (1/1) ... [2018-11-06 19:42:40,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:42:39" (1/1) ... [2018-11-06 19:42:40,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:42:39" (1/1) ... [2018-11-06 19:42:40,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:42:39" (1/1) ... [2018-11-06 19:42:40,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:42:39" (1/1) ... [2018-11-06 19:42:40,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:42:39" (1/1) ... [2018-11-06 19:42:41,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 19:42:41,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 19:42:41,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 19:42:41,083 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 19:42:41,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:42:39" (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 19:42:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 19:42:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 19:42:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 19:42:57,463 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 19:42:57,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:42:57 BoogieIcfgContainer [2018-11-06 19:42:57,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 19:42:57,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 19:42:57,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 19:42:57,469 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 19:42:57,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:42:35" (1/3) ... [2018-11-06 19:42:57,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295f2e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:42:57, skipping insertion in model container [2018-11-06 19:42:57,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:42:39" (2/3) ... [2018-11-06 19:42:57,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295f2e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:42:57, skipping insertion in model container [2018-11-06 19:42:57,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:42:57" (3/3) ... [2018-11-06 19:42:57,473 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label22_false-unreach-call.c [2018-11-06 19:42:57,483 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 19:42:57,494 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 19:42:57,511 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 19:42:57,559 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 19:42:57,560 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 19:42:57,560 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 19:42:57,560 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 19:42:57,560 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 19:42:57,560 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 19:42:57,560 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 19:42:57,561 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 19:42:57,561 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 19:42:57,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-11-06 19:42:57,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-06 19:42:57,621 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:42:57,622 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:42:57,625 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:42:57,631 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:42:57,632 INFO L82 PathProgramCache]: Analyzing trace with hash 808956810, now seen corresponding path program 1 times [2018-11-06 19:42:57,634 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:42:57,634 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:42:57,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:42:57,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:42:57,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:42:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:42:58,105 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 19:42:58,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:42:58,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:42:58,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:42:58,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:42:58,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:42:58,141 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-11-06 19:43:17,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:43:17,645 INFO L93 Difference]: Finished difference Result 6326 states and 12085 transitions. [2018-11-06 19:43:17,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:43:17,647 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-06 19:43:17,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:43:17,713 INFO L225 Difference]: With dead ends: 6326 [2018-11-06 19:43:17,713 INFO L226 Difference]: Without dead ends: 4570 [2018-11-06 19:43:17,722 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:43:17,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2018-11-06 19:43:17,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 4564. [2018-11-06 19:43:17,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4564 states. [2018-11-06 19:43:17,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 7499 transitions. [2018-11-06 19:43:17,936 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 7499 transitions. Word has length 30 [2018-11-06 19:43:17,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:43:17,936 INFO L480 AbstractCegarLoop]: Abstraction has 4564 states and 7499 transitions. [2018-11-06 19:43:17,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:43:17,937 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 7499 transitions. [2018-11-06 19:43:17,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-06 19:43:17,946 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:43:17,946 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:43:17,946 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:43:17,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:43:17,947 INFO L82 PathProgramCache]: Analyzing trace with hash 2106615927, now seen corresponding path program 1 times [2018-11-06 19:43:17,947 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:43:17,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:43:17,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:43:17,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:43:17,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:43:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:43:18,298 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:43:18,298 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:43:18,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:43:18,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:43:18,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:43:18,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:43:18,301 INFO L87 Difference]: Start difference. First operand 4564 states and 7499 transitions. Second operand 4 states. [2018-11-06 19:43:38,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:43:38,802 INFO L93 Difference]: Finished difference Result 17552 states and 29056 transitions. [2018-11-06 19:43:38,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:43:38,803 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 134 [2018-11-06 19:43:38,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:43:38,869 INFO L225 Difference]: With dead ends: 17552 [2018-11-06 19:43:38,869 INFO L226 Difference]: Without dead ends: 12990 [2018-11-06 19:43:38,879 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:43:38,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12990 states. [2018-11-06 19:43:39,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12990 to 8666. [2018-11-06 19:43:39,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8666 states. [2018-11-06 19:43:39,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8666 states to 8666 states and 13862 transitions. [2018-11-06 19:43:39,087 INFO L78 Accepts]: Start accepts. Automaton has 8666 states and 13862 transitions. Word has length 134 [2018-11-06 19:43:39,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:43:39,088 INFO L480 AbstractCegarLoop]: Abstraction has 8666 states and 13862 transitions. [2018-11-06 19:43:39,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:43:39,088 INFO L276 IsEmpty]: Start isEmpty. Operand 8666 states and 13862 transitions. [2018-11-06 19:43:39,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-06 19:43:39,091 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:43:39,091 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:43:39,091 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:43:39,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:43:39,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1024214355, now seen corresponding path program 1 times [2018-11-06 19:43:39,092 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:43:39,092 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:43:39,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:43:39,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:43:39,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:43:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:43:39,417 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:43:39,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:43:39,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:43:39,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:43:39,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:43:39,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:43:39,419 INFO L87 Difference]: Start difference. First operand 8666 states and 13862 transitions. Second operand 4 states. [2018-11-06 19:43:58,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:43:58,493 INFO L93 Difference]: Finished difference Result 33845 states and 54415 transitions. [2018-11-06 19:43:58,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:43:58,495 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2018-11-06 19:43:58,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:43:58,569 INFO L225 Difference]: With dead ends: 33845 [2018-11-06 19:43:58,570 INFO L226 Difference]: Without dead ends: 25181 [2018-11-06 19:43:58,583 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 19:43:58,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25181 states. [2018-11-06 19:43:58,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25181 to 25141. [2018-11-06 19:43:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25141 states. [2018-11-06 19:43:58,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25141 states to 25141 states and 35891 transitions. [2018-11-06 19:43:58,987 INFO L78 Accepts]: Start accepts. Automaton has 25141 states and 35891 transitions. Word has length 138 [2018-11-06 19:43:58,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:43:58,988 INFO L480 AbstractCegarLoop]: Abstraction has 25141 states and 35891 transitions. [2018-11-06 19:43:58,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:43:58,988 INFO L276 IsEmpty]: Start isEmpty. Operand 25141 states and 35891 transitions. [2018-11-06 19:43:58,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-11-06 19:43:58,993 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:43:58,993 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:43:58,993 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:43:58,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:43:58,998 INFO L82 PathProgramCache]: Analyzing trace with hash -2023606249, now seen corresponding path program 1 times [2018-11-06 19:43:58,999 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:43:58,999 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:43:59,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:43:59,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:43:59,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:43:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:43:59,383 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:43:59,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:43:59,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:43:59,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:43:59,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:43:59,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:43:59,385 INFO L87 Difference]: Start difference. First operand 25141 states and 35891 transitions. Second operand 4 states. [2018-11-06 19:44:15,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:44:15,173 INFO L93 Difference]: Finished difference Result 98401 states and 140793 transitions. [2018-11-06 19:44:15,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:44:15,174 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 161 [2018-11-06 19:44:15,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:44:15,306 INFO L225 Difference]: With dead ends: 98401 [2018-11-06 19:44:15,306 INFO L226 Difference]: Without dead ends: 73262 [2018-11-06 19:44:15,341 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 19:44:15,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73262 states. [2018-11-06 19:44:16,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73262 to 73242. [2018-11-06 19:44:16,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73242 states. [2018-11-06 19:44:16,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73242 states to 73242 states and 91791 transitions. [2018-11-06 19:44:16,371 INFO L78 Accepts]: Start accepts. Automaton has 73242 states and 91791 transitions. Word has length 161 [2018-11-06 19:44:16,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:44:16,371 INFO L480 AbstractCegarLoop]: Abstraction has 73242 states and 91791 transitions. [2018-11-06 19:44:16,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:44:16,371 INFO L276 IsEmpty]: Start isEmpty. Operand 73242 states and 91791 transitions. [2018-11-06 19:44:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2018-11-06 19:44:16,385 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:44:16,385 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:44:16,386 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:44:16,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:44:16,386 INFO L82 PathProgramCache]: Analyzing trace with hash -599899335, now seen corresponding path program 1 times [2018-11-06 19:44:16,386 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:44:16,386 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:44:16,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:44:16,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:44:16,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:44:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:44:16,926 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-06 19:44:17,458 WARN L179 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-11-06 19:44:18,303 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-11-06 19:44:18,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:44:18,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-06 19:44:18,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 19:44:18,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 19:44:18,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-06 19:44:18,305 INFO L87 Difference]: Start difference. First operand 73242 states and 91791 transitions. Second operand 7 states. [2018-11-06 19:44:57,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:44:57,229 INFO L93 Difference]: Finished difference Result 172450 states and 210821 transitions. [2018-11-06 19:44:57,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 19:44:57,232 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 485 [2018-11-06 19:44:57,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:44:57,365 INFO L225 Difference]: With dead ends: 172450 [2018-11-06 19:44:57,365 INFO L226 Difference]: Without dead ends: 99210 [2018-11-06 19:44:57,409 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-11-06 19:44:57,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99210 states. [2018-11-06 19:44:58,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99210 to 95106. [2018-11-06 19:44:58,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95106 states. [2018-11-06 19:44:58,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95106 states to 95106 states and 114312 transitions. [2018-11-06 19:44:58,455 INFO L78 Accepts]: Start accepts. Automaton has 95106 states and 114312 transitions. Word has length 485 [2018-11-06 19:44:58,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:44:58,456 INFO L480 AbstractCegarLoop]: Abstraction has 95106 states and 114312 transitions. [2018-11-06 19:44:58,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 19:44:58,457 INFO L276 IsEmpty]: Start isEmpty. Operand 95106 states and 114312 transitions. [2018-11-06 19:44:58,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2018-11-06 19:44:58,467 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:44:58,468 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:44:58,468 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:44:58,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:44:58,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1758713633, now seen corresponding path program 1 times [2018-11-06 19:44:58,469 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:44:58,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:44:58,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:44:58,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:44:58,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:44:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:44:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-06 19:44:58,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:44:58,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:44:59,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:44:59,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:44:59,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:44:59,001 INFO L87 Difference]: Start difference. First operand 95106 states and 114312 transitions. Second operand 4 states. [2018-11-06 19:45:13,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:45:13,794 INFO L93 Difference]: Finished difference Result 238032 states and 291025 transitions. [2018-11-06 19:45:13,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:45:13,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 513 [2018-11-06 19:45:13,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:45:14,002 INFO L225 Difference]: With dead ends: 238032 [2018-11-06 19:45:14,003 INFO L226 Difference]: Without dead ends: 142928 [2018-11-06 19:45:14,076 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:45:14,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142928 states. [2018-11-06 19:45:15,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142928 to 142917. [2018-11-06 19:45:15,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142917 states. [2018-11-06 19:45:16,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142917 states to 142917 states and 167346 transitions. [2018-11-06 19:45:16,455 INFO L78 Accepts]: Start accepts. Automaton has 142917 states and 167346 transitions. Word has length 513 [2018-11-06 19:45:16,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:45:16,455 INFO L480 AbstractCegarLoop]: Abstraction has 142917 states and 167346 transitions. [2018-11-06 19:45:16,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:45:16,456 INFO L276 IsEmpty]: Start isEmpty. Operand 142917 states and 167346 transitions. [2018-11-06 19:45:16,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 886 [2018-11-06 19:45:16,489 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:45:16,490 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:45:16,490 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:45:16,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:45:16,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1473549646, now seen corresponding path program 1 times [2018-11-06 19:45:16,492 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:45:16,493 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:45:16,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:45:16,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:45:16,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:45:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:45:17,637 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-11-06 19:45:17,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:45:17,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:45:17,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:45:17,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:45:17,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:45:17,640 INFO L87 Difference]: Start difference. First operand 142917 states and 167346 transitions. Second operand 4 states. [2018-11-06 19:45:32,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:45:32,472 INFO L93 Difference]: Finished difference Result 285835 states and 334699 transitions. [2018-11-06 19:45:32,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:45:32,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 885 [2018-11-06 19:45:32,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:45:32,682 INFO L225 Difference]: With dead ends: 285835 [2018-11-06 19:45:32,682 INFO L226 Difference]: Without dead ends: 142920 [2018-11-06 19:45:32,764 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:45:32,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142920 states. [2018-11-06 19:45:33,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142920 to 131981. [2018-11-06 19:45:33,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131981 states. [2018-11-06 19:45:33,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131981 states to 131981 states and 147274 transitions. [2018-11-06 19:45:33,892 INFO L78 Accepts]: Start accepts. Automaton has 131981 states and 147274 transitions. Word has length 885 [2018-11-06 19:45:33,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:45:33,893 INFO L480 AbstractCegarLoop]: Abstraction has 131981 states and 147274 transitions. [2018-11-06 19:45:33,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:45:33,893 INFO L276 IsEmpty]: Start isEmpty. Operand 131981 states and 147274 transitions. [2018-11-06 19:45:33,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2018-11-06 19:45:33,908 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:45:33,909 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:45:33,910 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:45:33,910 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:45:33,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1654264730, now seen corresponding path program 1 times [2018-11-06 19:45:33,910 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:45:33,910 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:45:33,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:45:33,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:45:33,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:45:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:45:36,044 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2018-11-06 19:45:36,044 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:45:36,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:45:36,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:45:36,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:45:36,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:45:36,046 INFO L87 Difference]: Start difference. First operand 131981 states and 147274 transitions. Second operand 4 states. [2018-11-06 19:45:54,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:45:54,511 INFO L93 Difference]: Finished difference Result 432118 states and 482503 transitions. [2018-11-06 19:45:54,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:45:54,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 903 [2018-11-06 19:45:54,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:45:54,880 INFO L225 Difference]: With dead ends: 432118 [2018-11-06 19:45:54,881 INFO L226 Difference]: Without dead ends: 289207 [2018-11-06 19:45:54,970 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:45:55,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289207 states. [2018-11-06 19:45:58,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289207 to 280860. [2018-11-06 19:45:58,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280860 states. [2018-11-06 19:45:59,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280860 states to 280860 states and 307619 transitions. [2018-11-06 19:45:59,093 INFO L78 Accepts]: Start accepts. Automaton has 280860 states and 307619 transitions. Word has length 903 [2018-11-06 19:45:59,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:45:59,094 INFO L480 AbstractCegarLoop]: Abstraction has 280860 states and 307619 transitions. [2018-11-06 19:45:59,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:45:59,094 INFO L276 IsEmpty]: Start isEmpty. Operand 280860 states and 307619 transitions. [2018-11-06 19:45:59,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1071 [2018-11-06 19:45:59,115 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:45:59,116 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:45:59,116 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:45:59,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:45:59,117 INFO L82 PathProgramCache]: Analyzing trace with hash -683705303, now seen corresponding path program 1 times [2018-11-06 19:45:59,117 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:45:59,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:45:59,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:45:59,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:45:59,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:45:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:46:01,644 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 812 trivial. 0 not checked. [2018-11-06 19:46:01,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:46:01,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:46:01,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:46:01,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:46:01,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:46:01,646 INFO L87 Difference]: Start difference. First operand 280860 states and 307619 transitions. Second operand 4 states. Received shutdown request... [2018-11-06 19:46:22,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:46:22,714 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 19:46:22,721 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 19:46:22,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:46:22 BoogieIcfgContainer [2018-11-06 19:46:22,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 19:46:22,723 INFO L168 Benchmark]: Toolchain (without parser) took 226949.53 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 883.6 MB. Max. memory is 7.1 GB. [2018-11-06 19:46:22,724 INFO L168 Benchmark]: CDTParser took 0.23 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 19:46:22,725 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3470.33 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: 401.7 MB). Peak memory consumption was 401.7 MB. Max. memory is 7.1 GB. [2018-11-06 19:46:22,725 INFO L168 Benchmark]: Boogie Procedure Inliner took 1173.01 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 867.7 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2018-11-06 19:46:22,726 INFO L168 Benchmark]: Boogie Preprocessor took 661.49 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 110.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 7.1 GB. [2018-11-06 19:46:22,727 INFO L168 Benchmark]: RCFGBuilder took 16381.96 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 294.1 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -396.0 MB). Peak memory consumption was 820.3 MB. Max. memory is 7.1 GB. [2018-11-06 19:46:22,728 INFO L168 Benchmark]: TraceAbstraction took 205256.53 ms. Allocated memory was 2.7 GB in the beginning and 4.3 GB in the end (delta: 1.6 GB). Free memory was 2.4 GB in the beginning and 3.3 GB in the end (delta: -883.4 MB). Peak memory consumption was 757.6 MB. Max. memory is 7.1 GB. [2018-11-06 19:46:22,733 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3470.33 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: 401.7 MB). Peak memory consumption was 401.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1173.01 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 867.7 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 661.49 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 110.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16381.96 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 294.1 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -396.0 MB). Peak memory consumption was 820.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205256.53 ms. Allocated memory was 2.7 GB in the beginning and 4.3 GB in the end (delta: 1.6 GB). Free memory was 2.4 GB in the beginning and 3.3 GB in the end (delta: -883.4 MB). Peak memory consumption was 757.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 103). Cancelled while BasicCegarLoop was constructing difference of abstraction (280860states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (414546 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 205.1s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 184.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10210 SDtfs, 34136 SDslu, 4097 SDs, 0 SdLazy, 92445 SolverSat, 20014 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 150.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 6 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=280860occurred 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: 10.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 27791 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 4319 NumberOfCodeBlocks, 4319 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 4310 ConstructedInterpolants, 0 QuantifiedInterpolants, 5146898 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 2886/2886 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown