java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label21_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:43:14,720 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:43:14,722 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:43:14,733 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:43:14,734 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:43:14,735 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:43:14,736 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:43:14,738 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:43:14,739 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:43:14,740 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:43:14,741 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:43:14,741 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:43:14,742 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:43:14,743 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:43:14,744 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:43:14,745 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:43:14,746 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:43:14,748 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:43:14,750 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:43:14,752 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:43:14,753 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:43:14,754 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:43:14,757 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 14:43:14,766 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 14:43:14,782 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:43:14,782 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:43:14,783 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:43:14,784 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:43:14,784 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:43:14,784 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:43:14,785 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:43:14,785 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:43:14,785 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:43:14,785 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:43:14,785 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:43:14,786 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:43:14,786 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:43:14,786 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:43:14,786 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:43:14,787 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:43:14,787 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:43:14,787 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:43:14,787 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:43:14,787 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:43:14,788 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:43:14,788 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:43:14,788 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:43:14,788 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:43:14,789 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:43:14,789 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:43:14,789 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:43:14,789 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:43:14,833 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:43:14,851 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:43:14,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:43:14,858 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:43:14,859 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:43:14,859 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label21_false-unreach-call.c [2018-10-24 14:43:14,919 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e63b0bfd4/3c617461f59040daa70490b987e7161d/FLAG07a8fd685 [2018-10-24 14:43:15,823 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:43:15,824 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label21_false-unreach-call.c [2018-10-24 14:43:15,867 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e63b0bfd4/3c617461f59040daa70490b987e7161d/FLAG07a8fd685 [2018-10-24 14:43:15,882 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e63b0bfd4/3c617461f59040daa70490b987e7161d [2018-10-24 14:43:15,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:43:15,898 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:43:15,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:43:15,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:43:15,908 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:43:15,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:43:15" (1/1) ... [2018-10-24 14:43:15,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46764b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:43:15, skipping insertion in model container [2018-10-24 14:43:15,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:43:15" (1/1) ... [2018-10-24 14:43:15,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:43:16,196 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:43:18,126 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:43:18,133 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:43:19,243 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:43:19,307 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:43:19,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:43:19 WrapperNode [2018-10-24 14:43:19,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:43:19,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:43:19,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:43:19,309 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:43:19,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:43:19" (1/1) ... [2018-10-24 14:43:19,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:43:19" (1/1) ... [2018-10-24 14:43:20,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:43:20,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:43:20,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:43:20,510 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:43:20,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:43:19" (1/1) ... [2018-10-24 14:43:20,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:43:19" (1/1) ... [2018-10-24 14:43:20,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:43:19" (1/1) ... [2018-10-24 14:43:20,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:43:19" (1/1) ... [2018-10-24 14:43:20,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:43:19" (1/1) ... [2018-10-24 14:43:20,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:43:19" (1/1) ... [2018-10-24 14:43:21,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:43:19" (1/1) ... [2018-10-24 14:43:21,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:43:21,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:43:21,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:43:21,183 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:43:21,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:43:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:43:21,258 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:43:21,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:43:21,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:43:39,706 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:43:39,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:43:39 BoogieIcfgContainer [2018-10-24 14:43:39,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:43:39,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:43:39,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:43:39,712 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:43:39,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:43:15" (1/3) ... [2018-10-24 14:43:39,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3b2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:43:39, skipping insertion in model container [2018-10-24 14:43:39,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:43:19" (2/3) ... [2018-10-24 14:43:39,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3b2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:43:39, skipping insertion in model container [2018-10-24 14:43:39,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:43:39" (3/3) ... [2018-10-24 14:43:39,718 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label21_false-unreach-call.c [2018-10-24 14:43:39,729 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:43:39,741 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:43:39,760 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:43:39,818 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:43:39,819 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:43:39,819 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:43:39,819 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:43:39,819 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:43:39,819 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:43:39,820 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:43:39,820 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:43:39,820 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:43:39,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 14:43:39,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-24 14:43:39,878 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:43:39,879 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:43:39,882 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:43:39,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:43:39,889 INFO L82 PathProgramCache]: Analyzing trace with hash 666618706, now seen corresponding path program 1 times [2018-10-24 14:43:39,892 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:43:39,892 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:43:39,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:43:39,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:43:39,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:43:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:43:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:43:40,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:43:40,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:43:40,133 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:43:40,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:43:40,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:43:40,153 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 3 states. [2018-10-24 14:44:02,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:44:02,439 INFO L93 Difference]: Finished difference Result 4922 states and 9316 transitions. [2018-10-24 14:44:02,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:44:02,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-10-24 14:44:02,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:44:02,488 INFO L225 Difference]: With dead ends: 4922 [2018-10-24 14:44:02,488 INFO L226 Difference]: Without dead ends: 3169 [2018-10-24 14:44:02,500 INFO L605 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 [2018-10-24 14:44:02,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2018-10-24 14:44:02,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 3168. [2018-10-24 14:44:02,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3168 states. [2018-10-24 14:44:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 5255 transitions. [2018-10-24 14:44:02,683 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 5255 transitions. Word has length 16 [2018-10-24 14:44:02,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:44:02,683 INFO L481 AbstractCegarLoop]: Abstraction has 3168 states and 5255 transitions. [2018-10-24 14:44:02,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:44:02,683 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 5255 transitions. [2018-10-24 14:44:02,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-24 14:44:02,687 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:44:02,687 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:44:02,687 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:44:02,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:44:02,688 INFO L82 PathProgramCache]: Analyzing trace with hash -388749078, now seen corresponding path program 1 times [2018-10-24 14:44:02,688 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:44:02,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:44:02,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:02,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:44:02,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:44:03,113 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:44:03,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:44:03,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:44:03,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:44:03,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:44:03,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:44:03,117 INFO L87 Difference]: Start difference. First operand 3168 states and 5255 transitions. Second operand 4 states. [2018-10-24 14:44:32,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:44:32,316 INFO L93 Difference]: Finished difference Result 12008 states and 20113 transitions. [2018-10-24 14:44:32,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:44:32,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 86 [2018-10-24 14:44:32,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:44:32,363 INFO L225 Difference]: With dead ends: 12008 [2018-10-24 14:44:32,363 INFO L226 Difference]: Without dead ends: 8842 [2018-10-24 14:44:32,369 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:44:32,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8842 states. [2018-10-24 14:44:32,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8842 to 5903. [2018-10-24 14:44:32,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5903 states. [2018-10-24 14:44:32,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5903 states to 5903 states and 9592 transitions. [2018-10-24 14:44:32,505 INFO L78 Accepts]: Start accepts. Automaton has 5903 states and 9592 transitions. Word has length 86 [2018-10-24 14:44:32,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:44:32,506 INFO L481 AbstractCegarLoop]: Abstraction has 5903 states and 9592 transitions. [2018-10-24 14:44:32,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:44:32,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5903 states and 9592 transitions. [2018-10-24 14:44:32,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-10-24 14:44:32,509 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:44:32,509 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:44:32,509 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:44:32,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:44:32,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1312265824, now seen corresponding path program 1 times [2018-10-24 14:44:32,510 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:44:32,510 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:44:32,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:32,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:44:32,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:44:32,717 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:44:32,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:44:32,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:44:32,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:44:32,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:44:32,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:44:32,718 INFO L87 Difference]: Start difference. First operand 5903 states and 9592 transitions. Second operand 5 states. [2018-10-24 14:44:49,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:44:49,231 INFO L93 Difference]: Finished difference Result 14545 states and 23014 transitions. [2018-10-24 14:44:49,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:44:49,234 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2018-10-24 14:44:49,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:44:49,279 INFO L225 Difference]: With dead ends: 14545 [2018-10-24 14:44:49,279 INFO L226 Difference]: Without dead ends: 8644 [2018-10-24 14:44:49,287 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:44:49,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8644 states. [2018-10-24 14:44:49,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8644 to 8640. [2018-10-24 14:44:49,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8640 states. [2018-10-24 14:44:49,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8640 states to 8640 states and 12390 transitions. [2018-10-24 14:44:49,461 INFO L78 Accepts]: Start accepts. Automaton has 8640 states and 12390 transitions. Word has length 91 [2018-10-24 14:44:49,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:44:49,461 INFO L481 AbstractCegarLoop]: Abstraction has 8640 states and 12390 transitions. [2018-10-24 14:44:49,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:44:49,462 INFO L276 IsEmpty]: Start isEmpty. Operand 8640 states and 12390 transitions. [2018-10-24 14:44:49,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-24 14:44:49,464 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:44:49,465 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:44:49,467 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:44:49,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:44:49,467 INFO L82 PathProgramCache]: Analyzing trace with hash -235810371, now seen corresponding path program 1 times [2018-10-24 14:44:49,467 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:44:49,467 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:44:49,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:49,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:44:49,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:44:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:44:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:44:49,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:44:49,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:44:49,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:44:49,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:44:49,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:44:49,815 INFO L87 Difference]: Start difference. First operand 8640 states and 12390 transitions. Second operand 4 states. [2018-10-24 14:45:11,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:45:11,353 INFO L93 Difference]: Finished difference Result 33782 states and 48567 transitions. [2018-10-24 14:45:11,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:45:11,354 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2018-10-24 14:45:11,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:45:11,428 INFO L225 Difference]: With dead ends: 33782 [2018-10-24 14:45:11,428 INFO L226 Difference]: Without dead ends: 25144 [2018-10-24 14:45:11,445 INFO L605 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 [2018-10-24 14:45:11,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25144 states. [2018-10-24 14:45:11,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25144 to 16851. [2018-10-24 14:45:11,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16851 states. [2018-10-24 14:45:11,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16851 states to 16851 states and 21746 transitions. [2018-10-24 14:45:11,793 INFO L78 Accepts]: Start accepts. Automaton has 16851 states and 21746 transitions. Word has length 108 [2018-10-24 14:45:11,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:45:11,793 INFO L481 AbstractCegarLoop]: Abstraction has 16851 states and 21746 transitions. [2018-10-24 14:45:11,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:45:11,794 INFO L276 IsEmpty]: Start isEmpty. Operand 16851 states and 21746 transitions. [2018-10-24 14:45:11,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-24 14:45:11,797 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:45:11,797 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:45:11,804 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:45:11,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:45:11,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1541472050, now seen corresponding path program 1 times [2018-10-24 14:45:11,805 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:45:11,805 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:45:11,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:11,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:45:11,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:45:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:45:12,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:45:12,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:45:12,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:45:12,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:45:12,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:45:12,153 INFO L87 Difference]: Start difference. First operand 16851 states and 21746 transitions. Second operand 4 states. [2018-10-24 14:45:33,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:45:33,150 INFO L93 Difference]: Finished difference Result 64022 states and 83146 transitions. [2018-10-24 14:45:33,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:45:33,151 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2018-10-24 14:45:33,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:45:33,234 INFO L225 Difference]: With dead ends: 64022 [2018-10-24 14:45:33,234 INFO L226 Difference]: Without dead ends: 47173 [2018-10-24 14:45:33,269 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:45:33,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47173 states. [2018-10-24 14:45:34,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47173 to 47161. [2018-10-24 14:45:34,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47161 states. [2018-10-24 14:45:34,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47161 states to 47161 states and 55554 transitions. [2018-10-24 14:45:34,092 INFO L78 Accepts]: Start accepts. Automaton has 47161 states and 55554 transitions. Word has length 114 [2018-10-24 14:45:34,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:45:34,093 INFO L481 AbstractCegarLoop]: Abstraction has 47161 states and 55554 transitions. [2018-10-24 14:45:34,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:45:34,093 INFO L276 IsEmpty]: Start isEmpty. Operand 47161 states and 55554 transitions. [2018-10-24 14:45:34,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-10-24 14:45:34,099 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:45:34,099 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:45:34,100 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:45:34,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:45:34,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1219595665, now seen corresponding path program 1 times [2018-10-24 14:45:34,104 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:45:34,104 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:45:34,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:34,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:45:34,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:45:34,514 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:45:34,515 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:45:34,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:45:34,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:45:34,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:45:34,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:45:34,517 INFO L87 Difference]: Start difference. First operand 47161 states and 55554 transitions. Second operand 4 states. [2018-10-24 14:45:52,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:45:52,250 INFO L93 Difference]: Finished difference Result 125772 states and 151183 transitions. [2018-10-24 14:45:52,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:45:52,251 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 224 [2018-10-24 14:45:52,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:45:52,390 INFO L225 Difference]: With dead ends: 125772 [2018-10-24 14:45:52,390 INFO L226 Difference]: Without dead ends: 78613 [2018-10-24 14:45:52,440 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:45:52,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78613 states. [2018-10-24 14:45:53,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78613 to 78602. [2018-10-24 14:45:53,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78602 states. [2018-10-24 14:45:53,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78602 states to 78602 states and 91268 transitions. [2018-10-24 14:45:53,458 INFO L78 Accepts]: Start accepts. Automaton has 78602 states and 91268 transitions. Word has length 224 [2018-10-24 14:45:53,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:45:53,459 INFO L481 AbstractCegarLoop]: Abstraction has 78602 states and 91268 transitions. [2018-10-24 14:45:53,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:45:53,459 INFO L276 IsEmpty]: Start isEmpty. Operand 78602 states and 91268 transitions. [2018-10-24 14:45:53,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2018-10-24 14:45:53,478 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:45:53,479 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:45:53,479 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:45:53,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:45:53,480 INFO L82 PathProgramCache]: Analyzing trace with hash -2076658619, now seen corresponding path program 1 times [2018-10-24 14:45:53,480 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:45:53,480 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:45:53,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:53,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:45:53,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:45:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:45:54,434 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-10-24 14:45:54,982 WARN L179 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 21 [2018-10-24 14:45:55,665 WARN L179 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 26 [2018-10-24 14:45:58,036 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-10-24 14:45:58,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:45:58,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 14:45:58,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 14:45:58,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 14:45:58,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:45:58,039 INFO L87 Difference]: Start difference. First operand 78602 states and 91268 transitions. Second operand 8 states. [2018-10-24 14:46:22,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:46:22,570 INFO L93 Difference]: Finished difference Result 216496 states and 252249 transitions. [2018-10-24 14:46:22,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-24 14:46:22,575 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 684 [2018-10-24 14:46:22,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:46:22,766 INFO L225 Difference]: With dead ends: 216496 [2018-10-24 14:46:22,767 INFO L226 Difference]: Without dead ends: 137896 [2018-10-24 14:46:22,830 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2018-10-24 14:46:22,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137896 states. [2018-10-24 14:46:23,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137896 to 79968. [2018-10-24 14:46:23,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79968 states. [2018-10-24 14:46:24,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79968 states to 79968 states and 92640 transitions. [2018-10-24 14:46:24,068 INFO L78 Accepts]: Start accepts. Automaton has 79968 states and 92640 transitions. Word has length 684 [2018-10-24 14:46:24,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:46:24,069 INFO L481 AbstractCegarLoop]: Abstraction has 79968 states and 92640 transitions. [2018-10-24 14:46:24,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 14:46:24,069 INFO L276 IsEmpty]: Start isEmpty. Operand 79968 states and 92640 transitions. [2018-10-24 14:46:24,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 804 [2018-10-24 14:46:24,093 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:46:24,094 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:46:24,094 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:46:24,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:46:24,095 INFO L82 PathProgramCache]: Analyzing trace with hash -319261357, now seen corresponding path program 1 times [2018-10-24 14:46:24,095 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:46:24,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:46:24,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:24,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:46:24,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:46:25,570 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-10-24 14:46:25,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:46:25,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:46:25,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:46:25,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:46:25,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:46:25,573 INFO L87 Difference]: Start difference. First operand 79968 states and 92640 transitions. Second operand 5 states. [2018-10-24 14:46:56,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:46:56,082 INFO L93 Difference]: Finished difference Result 292612 states and 343848 transitions. [2018-10-24 14:46:56,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:46:56,082 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 803 [2018-10-24 14:46:56,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:46:56,303 INFO L225 Difference]: With dead ends: 292612 [2018-10-24 14:46:56,304 INFO L226 Difference]: Without dead ends: 214012 [2018-10-24 14:46:56,361 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:46:56,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214012 states. [2018-10-24 14:46:58,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214012 to 159202. [2018-10-24 14:46:58,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159202 states. [2018-10-24 14:46:58,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159202 states to 159202 states and 184599 transitions. [2018-10-24 14:46:58,738 INFO L78 Accepts]: Start accepts. Automaton has 159202 states and 184599 transitions. Word has length 803 [2018-10-24 14:46:58,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:46:58,739 INFO L481 AbstractCegarLoop]: Abstraction has 159202 states and 184599 transitions. [2018-10-24 14:46:58,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:46:58,739 INFO L276 IsEmpty]: Start isEmpty. Operand 159202 states and 184599 transitions. [2018-10-24 14:46:58,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 899 [2018-10-24 14:46:58,750 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:46:58,751 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:46:58,751 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:46:58,751 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:46:58,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1301963741, now seen corresponding path program 1 times [2018-10-24 14:46:58,752 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:46:58,752 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:46:58,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:58,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:46:58,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:46:59,584 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2018-10-24 14:46:59,584 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:46:59,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:46:59,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:46:59,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:46:59,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:46:59,586 INFO L87 Difference]: Start difference. First operand 159202 states and 184599 transitions. Second operand 4 states. Received shutdown request... [2018-10-24 14:47:13,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:47:13,283 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:47:13,289 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:47:13,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:47:13 BoogieIcfgContainer [2018-10-24 14:47:13,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:47:13,290 INFO L168 Benchmark]: Toolchain (without parser) took 237393.68 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -719.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-24 14:47:13,292 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-10-24 14:47:13,292 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3405.84 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: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. [2018-10-24 14:47:13,293 INFO L168 Benchmark]: Boogie Procedure Inliner took 1200.55 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 871.9 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:47:13,294 INFO L168 Benchmark]: Boogie Preprocessor took 672.52 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 103.6 MB). Peak memory consumption was 103.6 MB. Max. memory is 7.1 GB. [2018-10-24 14:47:13,295 INFO L168 Benchmark]: RCFGBuilder took 18525.37 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 285.2 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -383.1 MB). Peak memory consumption was 862.6 MB. Max. memory is 7.1 GB. [2018-10-24 14:47:13,296 INFO L168 Benchmark]: TraceAbstraction took 213580.97 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 993.5 MB). Free memory was 2.4 GB in the beginning and 2.1 GB in the end (delta: 310.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 14:47:13,301 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 3405.84 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: 391.9 MB). Peak memory consumption was 391.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1200.55 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 871.9 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 672.52 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 103.6 MB). Peak memory consumption was 103.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18525.37 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 285.2 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -383.1 MB). Peak memory consumption was 862.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213580.97 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 993.5 MB). Free memory was 2.4 GB in the beginning and 2.1 GB in the end (delta: 310.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 61). Cancelled while BasicCegarLoop was constructing difference of abstraction (159202states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (180541 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 213.4s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 198.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12443 SDtfs, 34652 SDslu, 8907 SDs, 0 SdLazy, 73319 SolverSat, 19716 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 171.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159202occurred 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: 6.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 123998 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 3024 NumberOfCodeBlocks, 3024 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 3015 ConstructedInterpolants, 0 QuantifiedInterpolants, 7099135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 1118/1118 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown