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/Problem17_label15_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 21:40:24,503 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 21:40:24,506 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 21:40:24,522 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 21:40:24,522 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 21:40:24,524 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 21:40:24,526 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 21:40:24,529 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 21:40:24,539 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 21:40:24,540 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 21:40:24,541 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 21:40:24,541 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 21:40:24,544 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 21:40:24,545 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 21:40:24,547 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 21:40:24,548 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 21:40:24,548 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 21:40:24,550 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 21:40:24,552 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 21:40:24,554 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 21:40:24,555 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 21:40:24,556 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 21:40:24,558 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 21:40:24,559 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 21:40:24,559 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 21:40:24,560 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 21:40:24,561 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 21:40:24,562 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 21:40:24,563 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 21:40:24,564 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 21:40:24,564 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 21:40:24,565 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 21:40:24,567 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 21:40:24,585 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 21:40:24,585 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 21:40:24,587 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 21:40:24,587 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 21:40:24,588 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 21:40:24,588 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 21:40:24,588 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 21:40:24,588 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 21:40:24,588 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 21:40:24,590 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 21:40:24,590 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 21:40:24,590 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 21:40:24,590 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 21:40:24,590 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 21:40:24,591 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 21:40:24,591 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 21:40:24,591 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 21:40:24,591 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 21:40:24,592 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 21:40:24,592 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 21:40:24,592 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 21:40:24,592 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 21:40:24,592 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 21:40:24,593 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 21:40:24,594 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 21:40:24,594 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 21:40:24,594 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 21:40:24,595 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 21:40:24,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 21:40:24,665 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 21:40:24,670 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 21:40:24,672 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 21:40:24,672 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 21:40:24,673 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label15_true-unreach-call.c [2018-11-06 21:40:24,751 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15244a9f3/86db3b08cfe74b4cabb069da37048231/FLAG2684a3071 [2018-11-06 21:40:25,534 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 21:40:25,536 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label15_true-unreach-call.c [2018-11-06 21:40:25,567 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15244a9f3/86db3b08cfe74b4cabb069da37048231/FLAG2684a3071 [2018-11-06 21:40:25,583 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15244a9f3/86db3b08cfe74b4cabb069da37048231 [2018-11-06 21:40:25,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 21:40:25,596 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 21:40:25,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 21:40:25,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 21:40:25,601 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 21:40:25,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:40:25" (1/1) ... [2018-11-06 21:40:25,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c60cb25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:40:25, skipping insertion in model container [2018-11-06 21:40:25,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:40:25" (1/1) ... [2018-11-06 21:40:25,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 21:40:25,747 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 21:40:26,879 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 21:40:26,885 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 21:40:27,358 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 21:40:27,383 INFO L193 MainTranslator]: Completed translation [2018-11-06 21:40:27,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:40:27 WrapperNode [2018-11-06 21:40:27,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 21:40:27,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 21:40:27,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 21:40:27,386 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 21:40:27,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:40:27" (1/1) ... [2018-11-06 21:40:27,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:40:27" (1/1) ... [2018-11-06 21:40:27,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 21:40:27,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 21:40:27,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 21:40:27,929 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 21:40:27,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:40:27" (1/1) ... [2018-11-06 21:40:27,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:40:27" (1/1) ... [2018-11-06 21:40:27,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:40:27" (1/1) ... [2018-11-06 21:40:27,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:40:27" (1/1) ... [2018-11-06 21:40:28,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:40:27" (1/1) ... [2018-11-06 21:40:28,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:40:27" (1/1) ... [2018-11-06 21:40:28,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:40:27" (1/1) ... [2018-11-06 21:40:28,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 21:40:28,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 21:40:28,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 21:40:28,250 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 21:40:28,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:40:27" (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 21:40:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 21:40:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 21:40:28,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 21:40:37,684 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 21:40:37,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:40:37 BoogieIcfgContainer [2018-11-06 21:40:37,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 21:40:37,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 21:40:37,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 21:40:37,690 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 21:40:37,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:40:25" (1/3) ... [2018-11-06 21:40:37,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128dbac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:40:37, skipping insertion in model container [2018-11-06 21:40:37,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:40:27" (2/3) ... [2018-11-06 21:40:37,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128dbac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:40:37, skipping insertion in model container [2018-11-06 21:40:37,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:40:37" (3/3) ... [2018-11-06 21:40:37,694 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label15_true-unreach-call.c [2018-11-06 21:40:37,704 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 21:40:37,714 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 21:40:37,731 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 21:40:37,772 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 21:40:37,773 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 21:40:37,773 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 21:40:37,773 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 21:40:37,774 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 21:40:37,774 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 21:40:37,774 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 21:40:37,774 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 21:40:37,774 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 21:40:37,807 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-11-06 21:40:37,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-06 21:40:37,820 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:40:37,822 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, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:40:37,825 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:40:37,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:40:37,832 INFO L82 PathProgramCache]: Analyzing trace with hash 680225122, now seen corresponding path program 1 times [2018-11-06 21:40:37,834 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:40:37,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:40:37,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:40:37,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:40:37,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:40:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:40:38,350 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 21:40:38,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:40:38,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:40:38,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:40:38,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:40:38,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:40:38,380 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-11-06 21:40:47,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:40:47,490 INFO L93 Difference]: Finished difference Result 2102 states and 3914 transitions. [2018-11-06 21:40:47,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:40:47,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2018-11-06 21:40:47,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:40:47,530 INFO L225 Difference]: With dead ends: 2102 [2018-11-06 21:40:47,531 INFO L226 Difference]: Without dead ends: 1504 [2018-11-06 21:40:47,538 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 21:40:47,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2018-11-06 21:40:47,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1491. [2018-11-06 21:40:47,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2018-11-06 21:40:47,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2416 transitions. [2018-11-06 21:40:47,716 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2416 transitions. Word has length 37 [2018-11-06 21:40:47,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:40:47,716 INFO L480 AbstractCegarLoop]: Abstraction has 1491 states and 2416 transitions. [2018-11-06 21:40:47,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:40:47,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2416 transitions. [2018-11-06 21:40:47,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-06 21:40:47,722 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:40:47,723 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, 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] [2018-11-06 21:40:47,723 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:40:47,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:40:47,724 INFO L82 PathProgramCache]: Analyzing trace with hash 469984361, now seen corresponding path program 1 times [2018-11-06 21:40:47,724 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:40:47,724 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:40:47,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:40:47,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:40:47,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:40:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:40:47,980 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:40:47,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:40:47,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:40:47,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:40:47,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:40:47,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:40:47,983 INFO L87 Difference]: Start difference. First operand 1491 states and 2416 transitions. Second operand 4 states. [2018-11-06 21:40:55,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:40:55,030 INFO L93 Difference]: Finished difference Result 4268 states and 6993 transitions. [2018-11-06 21:40:55,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 21:40:55,031 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2018-11-06 21:40:55,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:40:55,047 INFO L225 Difference]: With dead ends: 4268 [2018-11-06 21:40:55,047 INFO L226 Difference]: Without dead ends: 2779 [2018-11-06 21:40:55,051 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 21:40:55,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2018-11-06 21:40:55,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2779. [2018-11-06 21:40:55,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2779 states. [2018-11-06 21:40:55,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 3841 transitions. [2018-11-06 21:40:55,109 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 3841 transitions. Word has length 105 [2018-11-06 21:40:55,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:40:55,110 INFO L480 AbstractCegarLoop]: Abstraction has 2779 states and 3841 transitions. [2018-11-06 21:40:55,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:40:55,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 3841 transitions. [2018-11-06 21:40:55,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-11-06 21:40:55,114 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:40:55,115 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:40:55,115 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:40:55,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:40:55,115 INFO L82 PathProgramCache]: Analyzing trace with hash -445607114, now seen corresponding path program 1 times [2018-11-06 21:40:55,115 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:40:55,116 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:40:55,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:40:55,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:40:55,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:40:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:40:55,390 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:40:55,390 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:40:55,390 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:40:55,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:40:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:40:55,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:40:55,649 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:40:55,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:40:55,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 21:40:55,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 21:40:55,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 21:40:55,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-06 21:40:55,686 INFO L87 Difference]: Start difference. First operand 2779 states and 3841 transitions. Second operand 6 states. [2018-11-06 21:41:08,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:41:08,578 INFO L93 Difference]: Finished difference Result 13733 states and 18932 transitions. [2018-11-06 21:41:08,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 21:41:08,588 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-11-06 21:41:08,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:41:08,629 INFO L225 Difference]: With dead ends: 13733 [2018-11-06 21:41:08,629 INFO L226 Difference]: Without dead ends: 8351 [2018-11-06 21:41:08,637 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-06 21:41:08,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8351 states. [2018-11-06 21:41:08,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8351 to 7060. [2018-11-06 21:41:08,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7060 states. [2018-11-06 21:41:08,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7060 states to 7060 states and 8761 transitions. [2018-11-06 21:41:08,772 INFO L78 Accepts]: Start accepts. Automaton has 7060 states and 8761 transitions. Word has length 108 [2018-11-06 21:41:08,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:41:08,773 INFO L480 AbstractCegarLoop]: Abstraction has 7060 states and 8761 transitions. [2018-11-06 21:41:08,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 21:41:08,773 INFO L276 IsEmpty]: Start isEmpty. Operand 7060 states and 8761 transitions. [2018-11-06 21:41:08,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-11-06 21:41:08,777 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:41:08,778 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 21:41:08,778 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:41:08,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:41:08,778 INFO L82 PathProgramCache]: Analyzing trace with hash 2115030227, now seen corresponding path program 1 times [2018-11-06 21:41:08,778 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:41:08,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:41:08,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:41:08,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:41:08,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:41:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:41:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:41:09,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:41:09,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:41:09,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 21:41:09,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 21:41:09,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:41:09,022 INFO L87 Difference]: Start difference. First operand 7060 states and 8761 transitions. Second operand 3 states. [2018-11-06 21:41:12,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:41:12,499 INFO L93 Difference]: Finished difference Result 17103 states and 21856 transitions. [2018-11-06 21:41:12,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 21:41:12,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2018-11-06 21:41:12,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:41:12,545 INFO L225 Difference]: With dead ends: 17103 [2018-11-06 21:41:12,545 INFO L226 Difference]: Without dead ends: 10472 [2018-11-06 21:41:12,556 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:41:12,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10472 states. [2018-11-06 21:41:12,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10472 to 10472. [2018-11-06 21:41:12,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10472 states. [2018-11-06 21:41:12,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10472 states to 10472 states and 12687 transitions. [2018-11-06 21:41:12,750 INFO L78 Accepts]: Start accepts. Automaton has 10472 states and 12687 transitions. Word has length 187 [2018-11-06 21:41:12,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:41:12,751 INFO L480 AbstractCegarLoop]: Abstraction has 10472 states and 12687 transitions. [2018-11-06 21:41:12,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 21:41:12,751 INFO L276 IsEmpty]: Start isEmpty. Operand 10472 states and 12687 transitions. [2018-11-06 21:41:12,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2018-11-06 21:41:12,761 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:41:12,761 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:41:12,762 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:41:12,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:41:12,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1359024060, now seen corresponding path program 1 times [2018-11-06 21:41:12,762 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:41:12,762 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:41:12,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:41:12,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:41:12,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:41:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:41:13,694 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 251 proven. 83 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-11-06 21:41:13,695 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:41:13,695 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:41:13,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:41:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:41:13,819 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:41:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 251 proven. 83 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-11-06 21:41:14,183 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 21:41:14,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-11-06 21:41:14,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 21:41:14,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 21:41:14,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-06 21:41:14,186 INFO L87 Difference]: Start difference. First operand 10472 states and 12687 transitions. Second operand 7 states. [2018-11-06 21:41:30,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:41:30,650 INFO L93 Difference]: Finished difference Result 33375 states and 40551 transitions. [2018-11-06 21:41:30,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 21:41:30,651 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 354 [2018-11-06 21:41:30,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:41:30,705 INFO L225 Difference]: With dead ends: 33375 [2018-11-06 21:41:30,706 INFO L226 Difference]: Without dead ends: 21139 [2018-11-06 21:41:30,720 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-11-06 21:41:30,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21139 states. [2018-11-06 21:41:30,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21139 to 17244. [2018-11-06 21:41:30,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17244 states. [2018-11-06 21:41:30,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17244 states to 17244 states and 19941 transitions. [2018-11-06 21:41:30,978 INFO L78 Accepts]: Start accepts. Automaton has 17244 states and 19941 transitions. Word has length 354 [2018-11-06 21:41:30,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:41:30,978 INFO L480 AbstractCegarLoop]: Abstraction has 17244 states and 19941 transitions. [2018-11-06 21:41:30,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 21:41:30,979 INFO L276 IsEmpty]: Start isEmpty. Operand 17244 states and 19941 transitions. [2018-11-06 21:41:30,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2018-11-06 21:41:30,987 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:41:30,988 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, 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, 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] [2018-11-06 21:41:30,988 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:41:30,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:41:30,988 INFO L82 PathProgramCache]: Analyzing trace with hash 2059194911, now seen corresponding path program 1 times [2018-11-06 21:41:30,988 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:41:30,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:41:30,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:41:30,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:41:30,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:41:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:41:32,029 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 104 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:41:32,030 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:41:32,030 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:41:32,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:41:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:41:32,164 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:41:33,085 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 258 proven. 83 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-11-06 21:41:33,119 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 21:41:33,120 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2018-11-06 21:41:33,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 21:41:33,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 21:41:33,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-06 21:41:33,125 INFO L87 Difference]: Start difference. First operand 17244 states and 19941 transitions. Second operand 7 states. [2018-11-06 21:41:45,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:41:45,744 INFO L93 Difference]: Finished difference Result 47282 states and 54047 transitions. [2018-11-06 21:41:45,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-06 21:41:45,745 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 361 [2018-11-06 21:41:45,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:41:45,802 INFO L225 Difference]: With dead ends: 47282 [2018-11-06 21:41:45,802 INFO L226 Difference]: Without dead ends: 29599 [2018-11-06 21:41:45,828 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 359 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-06 21:41:45,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29599 states. [2018-11-06 21:41:46,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29599 to 23596. [2018-11-06 21:41:46,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23596 states. [2018-11-06 21:41:46,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23596 states to 23596 states and 26193 transitions. [2018-11-06 21:41:46,190 INFO L78 Accepts]: Start accepts. Automaton has 23596 states and 26193 transitions. Word has length 361 [2018-11-06 21:41:46,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:41:46,191 INFO L480 AbstractCegarLoop]: Abstraction has 23596 states and 26193 transitions. [2018-11-06 21:41:46,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 21:41:46,191 INFO L276 IsEmpty]: Start isEmpty. Operand 23596 states and 26193 transitions. [2018-11-06 21:41:46,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2018-11-06 21:41:46,208 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:41:46,208 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:41:46,209 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:41:46,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:41:46,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1653139911, now seen corresponding path program 1 times [2018-11-06 21:41:46,209 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:41:46,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:41:46,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:41:46,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:41:46,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:41:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:41:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2018-11-06 21:41:46,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:41:46,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:41:46,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:41:46,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:41:46,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:41:46,970 INFO L87 Difference]: Start difference. First operand 23596 states and 26193 transitions. Second operand 4 states. [2018-11-06 21:41:57,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:41:57,379 INFO L93 Difference]: Finished difference Result 53596 states and 60432 transitions. [2018-11-06 21:41:57,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:41:57,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 483 [2018-11-06 21:41:57,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:41:57,436 INFO L225 Difference]: With dead ends: 53596 [2018-11-06 21:41:57,437 INFO L226 Difference]: Without dead ends: 32974 [2018-11-06 21:41:57,466 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 21:41:57,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32974 states. [2018-11-06 21:41:57,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32974 to 31688. [2018-11-06 21:41:57,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31688 states. [2018-11-06 21:41:57,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31688 states to 31688 states and 34765 transitions. [2018-11-06 21:41:57,797 INFO L78 Accepts]: Start accepts. Automaton has 31688 states and 34765 transitions. Word has length 483 [2018-11-06 21:41:57,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:41:57,797 INFO L480 AbstractCegarLoop]: Abstraction has 31688 states and 34765 transitions. [2018-11-06 21:41:57,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:41:57,798 INFO L276 IsEmpty]: Start isEmpty. Operand 31688 states and 34765 transitions. [2018-11-06 21:41:57,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2018-11-06 21:41:57,817 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:41:57,817 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:41:57,818 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:41:57,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:41:57,818 INFO L82 PathProgramCache]: Analyzing trace with hash -564707112, now seen corresponding path program 1 times [2018-11-06 21:41:57,818 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:41:57,818 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:41:57,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:41:57,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:41:57,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:41:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:41:58,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 541 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-11-06 21:41:58,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:41:58,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:41:58,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 21:41:58,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 21:41:58,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:41:58,360 INFO L87 Difference]: Start difference. First operand 31688 states and 34765 transitions. Second operand 3 states. [2018-11-06 21:42:00,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:42:00,938 INFO L93 Difference]: Finished difference Result 70622 states and 77532 transitions. [2018-11-06 21:42:00,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 21:42:00,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 539 [2018-11-06 21:42:00,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:42:01,012 INFO L225 Difference]: With dead ends: 70622 [2018-11-06 21:42:01,013 INFO L226 Difference]: Without dead ends: 39788 [2018-11-06 21:42:01,037 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:42:01,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39788 states. [2018-11-06 21:42:01,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39788 to 38505. [2018-11-06 21:42:01,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38505 states. [2018-11-06 21:42:01,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38505 states to 38505 states and 41775 transitions. [2018-11-06 21:42:01,486 INFO L78 Accepts]: Start accepts. Automaton has 38505 states and 41775 transitions. Word has length 539 [2018-11-06 21:42:01,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:42:01,487 INFO L480 AbstractCegarLoop]: Abstraction has 38505 states and 41775 transitions. [2018-11-06 21:42:01,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 21:42:01,487 INFO L276 IsEmpty]: Start isEmpty. Operand 38505 states and 41775 transitions. [2018-11-06 21:42:01,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2018-11-06 21:42:01,512 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:42:01,512 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:42:01,513 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:42:01,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:42:01,513 INFO L82 PathProgramCache]: Analyzing trace with hash -953741318, now seen corresponding path program 1 times [2018-11-06 21:42:01,513 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:42:01,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:42:01,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:42:01,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:42:01,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:42:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:42:02,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 541 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-11-06 21:42:02,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:42:02,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 21:42:02,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 21:42:02,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 21:42:02,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:42:02,142 INFO L87 Difference]: Start difference. First operand 38505 states and 41775 transitions. Second operand 5 states. [2018-11-06 21:42:10,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:42:10,893 INFO L93 Difference]: Finished difference Result 88534 states and 96307 transitions. [2018-11-06 21:42:10,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 21:42:10,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 567 [2018-11-06 21:42:10,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:42:10,949 INFO L225 Difference]: With dead ends: 88534 [2018-11-06 21:42:10,950 INFO L226 Difference]: Without dead ends: 54299 [2018-11-06 21:42:10,966 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:42:11,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54299 states. [2018-11-06 21:42:11,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54299 to 50037. [2018-11-06 21:42:11,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50037 states. [2018-11-06 21:42:11,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50037 states to 50037 states and 54009 transitions. [2018-11-06 21:42:11,482 INFO L78 Accepts]: Start accepts. Automaton has 50037 states and 54009 transitions. Word has length 567 [2018-11-06 21:42:11,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:42:11,483 INFO L480 AbstractCegarLoop]: Abstraction has 50037 states and 54009 transitions. [2018-11-06 21:42:11,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 21:42:11,483 INFO L276 IsEmpty]: Start isEmpty. Operand 50037 states and 54009 transitions. [2018-11-06 21:42:11,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2018-11-06 21:42:11,499 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:42:11,500 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:42:11,500 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:42:11,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:42:11,500 INFO L82 PathProgramCache]: Analyzing trace with hash 523501321, now seen corresponding path program 1 times [2018-11-06 21:42:11,501 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:42:11,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:42:11,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:42:11,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:42:11,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:42:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:42:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 539 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2018-11-06 21:42:12,018 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:42:12,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 21:42:12,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 21:42:12,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 21:42:12,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:42:12,020 INFO L87 Difference]: Start difference. First operand 50037 states and 54009 transitions. Second operand 3 states. [2018-11-06 21:42:13,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:42:13,962 INFO L93 Difference]: Finished difference Result 98785 states and 106695 transitions. [2018-11-06 21:42:13,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 21:42:13,963 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 574 [2018-11-06 21:42:13,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:42:14,035 INFO L225 Difference]: With dead ends: 98785 [2018-11-06 21:42:14,035 INFO L226 Difference]: Without dead ends: 49601 [2018-11-06 21:42:14,065 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:42:14,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49601 states. [2018-11-06 21:42:14,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49601 to 49170. [2018-11-06 21:42:14,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49170 states. [2018-11-06 21:42:14,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49170 states to 49170 states and 53080 transitions. [2018-11-06 21:42:14,505 INFO L78 Accepts]: Start accepts. Automaton has 49170 states and 53080 transitions. Word has length 574 [2018-11-06 21:42:14,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:42:14,506 INFO L480 AbstractCegarLoop]: Abstraction has 49170 states and 53080 transitions. [2018-11-06 21:42:14,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 21:42:14,506 INFO L276 IsEmpty]: Start isEmpty. Operand 49170 states and 53080 transitions. [2018-11-06 21:42:14,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2018-11-06 21:42:14,521 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:42:14,522 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:42:14,522 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:42:14,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:42:14,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1499392919, now seen corresponding path program 1 times [2018-11-06 21:42:14,523 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:42:14,523 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:42:14,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:42:14,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:42:14,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:42:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:42:15,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2018-11-06 21:42:15,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:42:15,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 21:42:15,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 21:42:15,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 21:42:15,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:42:15,747 INFO L87 Difference]: Start difference. First operand 49170 states and 53080 transitions. Second operand 5 states. [2018-11-06 21:42:23,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:42:23,397 INFO L93 Difference]: Finished difference Result 111559 states and 120399 transitions. [2018-11-06 21:42:23,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 21:42:23,398 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 602 [2018-11-06 21:42:23,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:42:23,470 INFO L225 Difference]: With dead ends: 111559 [2018-11-06 21:42:23,470 INFO L226 Difference]: Without dead ends: 67934 [2018-11-06 21:42:23,500 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-06 21:42:23,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67934 states. [2018-11-06 21:42:23,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67934 to 51725. [2018-11-06 21:42:23,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51725 states. [2018-11-06 21:42:24,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51725 states to 51725 states and 55814 transitions. [2018-11-06 21:42:24,014 INFO L78 Accepts]: Start accepts. Automaton has 51725 states and 55814 transitions. Word has length 602 [2018-11-06 21:42:24,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:42:24,014 INFO L480 AbstractCegarLoop]: Abstraction has 51725 states and 55814 transitions. [2018-11-06 21:42:24,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 21:42:24,015 INFO L276 IsEmpty]: Start isEmpty. Operand 51725 states and 55814 transitions. [2018-11-06 21:42:24,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2018-11-06 21:42:24,026 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:42:24,027 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:42:24,027 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:42:24,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:42:24,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1617078907, now seen corresponding path program 1 times [2018-11-06 21:42:24,027 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:42:24,028 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:42:24,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:42:24,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:42:24,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:42:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:42:25,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 635 proven. 248 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2018-11-06 21:42:25,146 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:42:25,146 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:42:25,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:42:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:42:25,333 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:42:25,581 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 13 [2018-11-06 21:42:44,244 WARN L179 SmtUtils]: Spent 16.26 s on a formula simplification. DAG size of input: 194 DAG size of output: 102 [2018-11-06 21:42:45,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2018-11-06 21:42:45,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:42:45,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2018-11-06 21:42:45,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-06 21:42:45,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-06 21:42:45,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=50, Unknown=1, NotChecked=0, Total=72 [2018-11-06 21:42:45,650 INFO L87 Difference]: Start difference. First operand 51725 states and 55814 transitions. Second operand 9 states. Received shutdown request... [2018-11-06 21:44:32,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 21:44:32,895 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 21:44:32,902 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 21:44:32,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:44:32 BoogieIcfgContainer [2018-11-06 21:44:32,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 21:44:32,903 INFO L168 Benchmark]: Toolchain (without parser) took 247308.39 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 186.0 MB. Max. memory is 7.1 GB. [2018-11-06 21:44:32,904 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. [2018-11-06 21:44:32,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1788.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-06 21:44:32,906 INFO L168 Benchmark]: Boogie Procedure Inliner took 541.89 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -876.3 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2018-11-06 21:44:32,907 INFO L168 Benchmark]: Boogie Preprocessor took 321.01 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 41.7 MB). Peak memory consumption was 41.7 MB. Max. memory is 7.1 GB. [2018-11-06 21:44:32,908 INFO L168 Benchmark]: RCFGBuilder took 9435.83 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 487.1 MB). Peak memory consumption was 487.1 MB. Max. memory is 7.1 GB. [2018-11-06 21:44:32,909 INFO L168 Benchmark]: TraceAbstraction took 235215.94 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.6 GB in the beginning and 3.7 GB in the end (delta: -2.1 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 21:44:32,914 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 1788.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 541.89 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -876.3 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 321.01 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 41.7 MB). Peak memory consumption was 41.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9435.83 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 487.1 MB). Peak memory consumption was 487.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235215.94 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.6 GB in the beginning and 3.7 GB in the end (delta: -2.1 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 116). Cancelled while BasicCegarLoop was constructing difference of abstraction (51725states) and FLOYD_HOARE automaton (currently 3 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (55 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 235.1s OverallTime, 12 OverallIterations, 6 TraceHistogramMax, 201.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4210 SDtfs, 14297 SDslu, 2453 SDs, 0 SdLazy, 38729 SolverSat, 5638 SolverUnsat, 59 SolverUnknown, 0 SolverNotchecked, 185.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1487 GetRequests, 1442 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 23.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51725occurred in iteration=11, 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: 3.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 34673 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 26.0s InterpolantComputationTime, 5964 NumberOfCodeBlocks, 5964 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 5948 ConstructedInterpolants, 343 QuantifiedInterpolants, 14166664 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1894 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 7856/8659 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown