java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label31_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 02:52:15,843 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 02:52:15,846 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 02:52:15,861 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 02:52:15,861 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 02:52:15,862 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 02:52:15,864 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 02:52:15,865 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 02:52:15,867 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 02:52:15,868 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 02:52:15,869 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 02:52:15,869 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 02:52:15,870 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 02:52:15,871 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 02:52:15,874 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 02:52:15,875 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 02:52:15,876 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 02:52:15,878 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 02:52:15,883 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 02:52:15,884 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 02:52:15,885 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 02:52:15,887 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 02:52:15,889 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 02:52:15,889 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 02:52:15,889 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 02:52:15,890 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 02:52:15,891 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 02:52:15,892 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 02:52:15,893 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 02:52:15,894 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 02:52:15,894 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 02:52:15,894 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-24 02:52:15,898 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 [2018-07-24 02:52:15,918 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 02:52:15,918 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 02:52:15,919 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 02:52:15,920 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 02:52:15,921 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 02:52:15,921 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 02:52:15,921 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 02:52:15,921 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 02:52:15,922 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 02:52:15,922 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 02:52:15,922 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 02:52:15,922 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 02:52:15,923 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 02:52:15,923 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 02:52:15,924 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 02:52:15,924 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 02:52:15,924 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 02:52:15,925 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 02:52:15,925 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 02:52:15,926 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 02:52:15,926 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 02:52:15,926 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 02:52:15,926 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 02:52:15,926 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 02:52:15,927 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 02:52:15,927 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 02:52:15,927 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 02:52:15,927 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 02:52:15,994 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 02:52:16,007 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 02:52:16,011 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 02:52:16,014 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 02:52:16,015 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 02:52:16,016 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label31_true-unreach-call.c [2018-07-24 02:52:16,381 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a35dd565d/97fda3e331fb4fa9a274a1d5ade5054f/FLAG2e7eca3b7 [2018-07-24 02:52:16,889 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 02:52:16,890 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label31_true-unreach-call.c [2018-07-24 02:52:16,931 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a35dd565d/97fda3e331fb4fa9a274a1d5ade5054f/FLAG2e7eca3b7 [2018-07-24 02:52:16,953 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a35dd565d/97fda3e331fb4fa9a274a1d5ade5054f [2018-07-24 02:52:16,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 02:52:16,968 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 02:52:16,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 02:52:16,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 02:52:16,978 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 02:52:16,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:52:16" (1/1) ... [2018-07-24 02:52:16,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d9fee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:16, skipping insertion in model container [2018-07-24 02:52:16,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:52:16" (1/1) ... [2018-07-24 02:52:17,394 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 02:52:18,461 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 02:52:18,480 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 02:52:19,327 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 02:52:19,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:19 WrapperNode [2018-07-24 02:52:19,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 02:52:19,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 02:52:19,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 02:52:19,644 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 02:52:19,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:19" (1/1) ... [2018-07-24 02:52:19,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:19" (1/1) ... [2018-07-24 02:52:20,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 02:52:20,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 02:52:20,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 02:52:20,555 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 02:52:21,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:19" (1/1) ... [2018-07-24 02:52:21,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:19" (1/1) ... [2018-07-24 02:52:21,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:19" (1/1) ... [2018-07-24 02:52:21,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:19" (1/1) ... [2018-07-24 02:52:21,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:19" (1/1) ... [2018-07-24 02:52:22,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:19" (1/1) ... [2018-07-24 02:52:22,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:19" (1/1) ... [2018-07-24 02:52:22,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 02:52:22,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 02:52:22,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 02:52:22,159 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 02:52:22,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:19" (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 [2018-07-24 02:52:22,227 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 02:52:22,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 02:52:22,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 02:52:36,640 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 02:52:36,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:52:36 BoogieIcfgContainer [2018-07-24 02:52:36,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 02:52:36,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 02:52:36,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 02:52:36,646 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 02:52:36,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:52:16" (1/3) ... [2018-07-24 02:52:36,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1915d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:52:36, skipping insertion in model container [2018-07-24 02:52:36,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:52:19" (2/3) ... [2018-07-24 02:52:36,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1915d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:52:36, skipping insertion in model container [2018-07-24 02:52:36,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:52:36" (3/3) ... [2018-07-24 02:52:36,650 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label31_true-unreach-call.c [2018-07-24 02:52:36,659 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 02:52:36,669 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 02:52:36,733 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 02:52:36,734 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 02:52:36,734 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 02:52:36,735 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 02:52:36,735 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 02:52:36,735 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 02:52:36,735 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 02:52:36,735 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 02:52:36,735 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 02:52:36,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-07-24 02:52:36,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-07-24 02:52:36,780 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:52:36,781 INFO L353 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, 1, 1, 1, 1] [2018-07-24 02:52:36,782 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:52:36,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1074275470, now seen corresponding path program 1 times [2018-07-24 02:52:36,789 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:52:36,790 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:52:36,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:52:36,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:52:36,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:52:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:52:37,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:52:37,257 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:52:37,257 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:52:37,262 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:52:37,278 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:52:37,278 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:52:37,281 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-07-24 02:52:56,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:52:56,876 INFO L93 Difference]: Finished difference Result 3993 states and 7498 transitions. [2018-07-24 02:52:56,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:52:56,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2018-07-24 02:52:56,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:52:56,923 INFO L225 Difference]: With dead ends: 3993 [2018-07-24 02:52:56,924 INFO L226 Difference]: Without dead ends: 2887 [2018-07-24 02:52:56,935 INFO L573 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 [2018-07-24 02:52:56,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2018-07-24 02:52:57,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 1937. [2018-07-24 02:52:57,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1937 states. [2018-07-24 02:52:57,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 3551 transitions. [2018-07-24 02:52:57,103 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 3551 transitions. Word has length 41 [2018-07-24 02:52:57,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:52:57,104 INFO L471 AbstractCegarLoop]: Abstraction has 1937 states and 3551 transitions. [2018-07-24 02:52:57,104 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:52:57,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 3551 transitions. [2018-07-24 02:52:57,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-07-24 02:52:57,109 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:52:57,110 INFO L353 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, 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] [2018-07-24 02:52:57,110 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:52:57,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1737438858, now seen corresponding path program 1 times [2018-07-24 02:52:57,111 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:52:57,111 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:52:57,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:52:57,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:52:57,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:52:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:52:57,440 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:52:57,441 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:52:57,441 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:52:57,443 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:52:57,443 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:52:57,443 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:52:57,444 INFO L87 Difference]: Start difference. First operand 1937 states and 3551 transitions. Second operand 4 states. [2018-07-24 02:53:12,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:53:12,457 INFO L93 Difference]: Finished difference Result 7122 states and 13346 transitions. [2018-07-24 02:53:12,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:53:12,458 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2018-07-24 02:53:12,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:53:12,487 INFO L225 Difference]: With dead ends: 7122 [2018-07-24 02:53:12,487 INFO L226 Difference]: Without dead ends: 5187 [2018-07-24 02:53:12,493 INFO L573 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 [2018-07-24 02:53:12,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5187 states. [2018-07-24 02:53:12,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5187 to 3555. [2018-07-24 02:53:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3555 states. [2018-07-24 02:53:12,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3555 states to 3555 states and 6249 transitions. [2018-07-24 02:53:12,575 INFO L78 Accepts]: Start accepts. Automaton has 3555 states and 6249 transitions. Word has length 110 [2018-07-24 02:53:12,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:53:12,576 INFO L471 AbstractCegarLoop]: Abstraction has 3555 states and 6249 transitions. [2018-07-24 02:53:12,576 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:53:12,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3555 states and 6249 transitions. [2018-07-24 02:53:12,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-07-24 02:53:12,580 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:53:12,580 INFO L353 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, 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] [2018-07-24 02:53:12,580 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:53:12,580 INFO L82 PathProgramCache]: Analyzing trace with hash -2072624303, now seen corresponding path program 1 times [2018-07-24 02:53:12,581 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:53:12,581 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:53:12,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:53:12,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:53:12,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:53:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:53:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:53:13,190 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:53:13,190 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:53:13,191 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:53:13,191 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:53:13,191 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:53:13,192 INFO L87 Difference]: Start difference. First operand 3555 states and 6249 transitions. Second operand 5 states. [2018-07-24 02:53:27,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:53:27,727 INFO L93 Difference]: Finished difference Result 11845 states and 20837 transitions. [2018-07-24 02:53:27,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 02:53:27,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2018-07-24 02:53:27,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:53:27,768 INFO L225 Difference]: With dead ends: 11845 [2018-07-24 02:53:27,768 INFO L226 Difference]: Without dead ends: 8292 [2018-07-24 02:53:27,775 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-24 02:53:27,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8292 states. [2018-07-24 02:53:27,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8292 to 8290. [2018-07-24 02:53:27,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8290 states. [2018-07-24 02:53:27,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8290 states to 8290 states and 12666 transitions. [2018-07-24 02:53:27,935 INFO L78 Accepts]: Start accepts. Automaton has 8290 states and 12666 transitions. Word has length 123 [2018-07-24 02:53:27,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:53:27,936 INFO L471 AbstractCegarLoop]: Abstraction has 8290 states and 12666 transitions. [2018-07-24 02:53:27,936 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 02:53:27,936 INFO L276 IsEmpty]: Start isEmpty. Operand 8290 states and 12666 transitions. [2018-07-24 02:53:27,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-07-24 02:53:27,940 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:53:27,940 INFO L353 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, 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] [2018-07-24 02:53:27,941 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:53:27,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1666609818, now seen corresponding path program 1 times [2018-07-24 02:53:27,941 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:53:27,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:53:27,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:53:27,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:53:27,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:53:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:53:28,096 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:53:28,096 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:53:28,097 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:53:28,097 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 02:53:28,098 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 02:53:28,098 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:53:28,098 INFO L87 Difference]: Start difference. First operand 8290 states and 12666 transitions. Second operand 3 states. [2018-07-24 02:53:34,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:53:34,974 INFO L93 Difference]: Finished difference Result 16565 states and 25604 transitions. [2018-07-24 02:53:34,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 02:53:34,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2018-07-24 02:53:34,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:53:35,009 INFO L225 Difference]: With dead ends: 16565 [2018-07-24 02:53:35,009 INFO L226 Difference]: Without dead ends: 9065 [2018-07-24 02:53:35,021 INFO L573 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 [2018-07-24 02:53:35,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9065 states. [2018-07-24 02:53:35,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9065 to 9063. [2018-07-24 02:53:35,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9063 states. [2018-07-24 02:53:35,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9063 states to 9063 states and 11885 transitions. [2018-07-24 02:53:35,211 INFO L78 Accepts]: Start accepts. Automaton has 9063 states and 11885 transitions. Word has length 167 [2018-07-24 02:53:35,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:53:35,212 INFO L471 AbstractCegarLoop]: Abstraction has 9063 states and 11885 transitions. [2018-07-24 02:53:35,212 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 02:53:35,213 INFO L276 IsEmpty]: Start isEmpty. Operand 9063 states and 11885 transitions. [2018-07-24 02:53:35,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-07-24 02:53:35,218 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:53:35,218 INFO L353 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:53:35,218 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:53:35,219 INFO L82 PathProgramCache]: Analyzing trace with hash 522095501, now seen corresponding path program 1 times [2018-07-24 02:53:35,219 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:53:35,219 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:53:35,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:53:35,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:53:35,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:53:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:53:35,782 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 77 proven. 4 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-07-24 02:53:35,783 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:53:35,783 INFO L221 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 [2018-07-24 02:53:35,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:53:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:53:35,914 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:53:35,988 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:53:36,021 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:53:36,021 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-24 02:53:36,022 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:53:36,023 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:53:36,023 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:53:36,023 INFO L87 Difference]: Start difference. First operand 9063 states and 11885 transitions. Second operand 4 states. [2018-07-24 02:53:47,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:53:47,176 INFO L93 Difference]: Finished difference Result 29202 states and 39054 transitions. [2018-07-24 02:53:47,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:53:47,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 233 [2018-07-24 02:53:47,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:53:47,215 INFO L225 Difference]: With dead ends: 29202 [2018-07-24 02:53:47,215 INFO L226 Difference]: Without dead ends: 20929 [2018-07-24 02:53:47,228 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:53:47,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20929 states. [2018-07-24 02:53:47,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20929 to 15371. [2018-07-24 02:53:47,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15371 states. [2018-07-24 02:53:47,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15371 states to 15371 states and 19301 transitions. [2018-07-24 02:53:47,470 INFO L78 Accepts]: Start accepts. Automaton has 15371 states and 19301 transitions. Word has length 233 [2018-07-24 02:53:47,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:53:47,470 INFO L471 AbstractCegarLoop]: Abstraction has 15371 states and 19301 transitions. [2018-07-24 02:53:47,470 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:53:47,470 INFO L276 IsEmpty]: Start isEmpty. Operand 15371 states and 19301 transitions. [2018-07-24 02:53:47,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-07-24 02:53:47,478 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:53:47,478 INFO L353 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:53:47,478 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:53:47,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1438696710, now seen corresponding path program 1 times [2018-07-24 02:53:47,479 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:53:47,479 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:53:47,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:53:47,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:53:47,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:53:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:53:47,895 WARN L169 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-07-24 02:53:47,980 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:53:47,980 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:53:47,981 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:53:47,981 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:53:47,981 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:53:47,981 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:53:47,982 INFO L87 Difference]: Start difference. First operand 15371 states and 19301 transitions. Second operand 4 states. [2018-07-24 02:53:58,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:53:58,584 INFO L93 Difference]: Finished difference Result 48074 states and 61255 transitions. [2018-07-24 02:53:58,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:53:58,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 284 [2018-07-24 02:53:58,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:53:58,635 INFO L225 Difference]: With dead ends: 48074 [2018-07-24 02:53:58,635 INFO L226 Difference]: Without dead ends: 28701 [2018-07-24 02:53:58,654 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:53:58,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28701 states. [2018-07-24 02:53:58,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28701 to 24758. [2018-07-24 02:53:58,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24758 states. [2018-07-24 02:53:58,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24758 states to 24758 states and 29103 transitions. [2018-07-24 02:53:58,952 INFO L78 Accepts]: Start accepts. Automaton has 24758 states and 29103 transitions. Word has length 284 [2018-07-24 02:53:58,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:53:58,953 INFO L471 AbstractCegarLoop]: Abstraction has 24758 states and 29103 transitions. [2018-07-24 02:53:58,953 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:53:58,953 INFO L276 IsEmpty]: Start isEmpty. Operand 24758 states and 29103 transitions. [2018-07-24 02:53:58,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2018-07-24 02:53:58,959 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:53:58,960 INFO L353 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, 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, 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] [2018-07-24 02:53:58,960 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:53:58,960 INFO L82 PathProgramCache]: Analyzing trace with hash -802390206, now seen corresponding path program 1 times [2018-07-24 02:53:58,960 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:53:58,960 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:53:58,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:53:58,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:53:58,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:53:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:53:59,381 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-07-24 02:53:59,382 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:53:59,382 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:53:59,382 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:53:59,382 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:53:59,383 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:53:59,383 INFO L87 Difference]: Start difference. First operand 24758 states and 29103 transitions. Second operand 4 states. [2018-07-24 02:54:09,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:54:09,387 INFO L93 Difference]: Finished difference Result 88159 states and 104259 transitions. [2018-07-24 02:54:09,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:54:09,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 307 [2018-07-24 02:54:09,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:54:09,485 INFO L225 Difference]: With dead ends: 88159 [2018-07-24 02:54:09,485 INFO L226 Difference]: Without dead ends: 63399 [2018-07-24 02:54:09,518 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:54:09,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63399 states. [2018-07-24 02:54:10,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63399 to 61791. [2018-07-24 02:54:10,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61791 states. [2018-07-24 02:54:10,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61791 states to 61791 states and 70177 transitions. [2018-07-24 02:54:10,583 INFO L78 Accepts]: Start accepts. Automaton has 61791 states and 70177 transitions. Word has length 307 [2018-07-24 02:54:10,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:54:10,584 INFO L471 AbstractCegarLoop]: Abstraction has 61791 states and 70177 transitions. [2018-07-24 02:54:10,584 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:54:10,584 INFO L276 IsEmpty]: Start isEmpty. Operand 61791 states and 70177 transitions. [2018-07-24 02:54:10,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2018-07-24 02:54:10,601 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:54:10,601 INFO L353 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, 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, 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] [2018-07-24 02:54:10,602 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:54:10,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1099456065, now seen corresponding path program 1 times [2018-07-24 02:54:10,602 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:54:10,602 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:54:10,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:54:10,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:54:10,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:54:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:54:10,984 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-07-24 02:54:10,984 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:54:10,984 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:54:10,985 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:54:10,985 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:54:10,985 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:54:10,986 INFO L87 Difference]: Start difference. First operand 61791 states and 70177 transitions. Second operand 5 states. [2018-07-24 02:54:31,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:54:31,606 INFO L93 Difference]: Finished difference Result 195542 states and 221587 transitions. [2018-07-24 02:54:31,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 02:54:31,606 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 322 [2018-07-24 02:54:31,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:54:31,747 INFO L225 Difference]: With dead ends: 195542 [2018-07-24 02:54:31,748 INFO L226 Difference]: Without dead ends: 134541 [2018-07-24 02:54:31,805 INFO L573 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 [2018-07-24 02:54:31,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134541 states. [2018-07-24 02:54:33,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134541 to 126480. [2018-07-24 02:54:33,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126480 states. [2018-07-24 02:54:33,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126480 states to 126480 states and 141278 transitions. [2018-07-24 02:54:33,635 INFO L78 Accepts]: Start accepts. Automaton has 126480 states and 141278 transitions. Word has length 322 [2018-07-24 02:54:33,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:54:33,636 INFO L471 AbstractCegarLoop]: Abstraction has 126480 states and 141278 transitions. [2018-07-24 02:54:33,636 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 02:54:33,636 INFO L276 IsEmpty]: Start isEmpty. Operand 126480 states and 141278 transitions. [2018-07-24 02:54:33,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2018-07-24 02:54:33,646 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:54:33,647 INFO L353 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:54:33,647 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:54:33,647 INFO L82 PathProgramCache]: Analyzing trace with hash 158609359, now seen corresponding path program 1 times [2018-07-24 02:54:33,648 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:54:33,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:54:33,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:54:33,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:54:33,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:54:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:54:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2018-07-24 02:54:34,041 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:54:34,042 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:54:34,042 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 02:54:34,042 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 02:54:34,042 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:54:34,043 INFO L87 Difference]: Start difference. First operand 126480 states and 141278 transitions. Second operand 3 states. [2018-07-24 02:54:41,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:54:41,160 INFO L93 Difference]: Finished difference Result 251382 states and 280706 transitions. [2018-07-24 02:54:41,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 02:54:41,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 397 [2018-07-24 02:54:41,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:54:41,279 INFO L225 Difference]: With dead ends: 251382 [2018-07-24 02:54:41,279 INFO L226 Difference]: Without dead ends: 125692 [2018-07-24 02:54:41,340 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:54:41,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125692 states. [2018-07-24 02:54:43,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125692 to 125690. [2018-07-24 02:54:43,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125690 states. [2018-07-24 02:54:43,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125690 states to 125690 states and 136506 transitions. [2018-07-24 02:54:43,491 INFO L78 Accepts]: Start accepts. Automaton has 125690 states and 136506 transitions. Word has length 397 [2018-07-24 02:54:43,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:54:43,491 INFO L471 AbstractCegarLoop]: Abstraction has 125690 states and 136506 transitions. [2018-07-24 02:54:43,492 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 02:54:43,492 INFO L276 IsEmpty]: Start isEmpty. Operand 125690 states and 136506 transitions. [2018-07-24 02:54:43,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2018-07-24 02:54:43,506 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:54:43,507 INFO L353 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, 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 02:54:43,507 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:54:43,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1425509918, now seen corresponding path program 1 times [2018-07-24 02:54:43,507 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:54:43,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:54:43,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:54:43,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:54:43,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:54:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:54:44,104 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2018-07-24 02:54:44,104 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:54:44,104 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:54:44,105 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:54:44,105 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:54:44,105 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:54:44,106 INFO L87 Difference]: Start difference. First operand 125690 states and 136506 transitions. Second operand 4 states. [2018-07-24 02:54:58,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:54:58,167 INFO L93 Difference]: Finished difference Result 319187 states and 347337 transitions. [2018-07-24 02:54:58,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:54:58,167 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 476 [2018-07-24 02:54:58,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:54:59,541 INFO L225 Difference]: With dead ends: 319187 [2018-07-24 02:54:59,541 INFO L226 Difference]: Without dead ends: 194287 [2018-07-24 02:54:59,593 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:54:59,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194287 states. [2018-07-24 02:55:00,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194287 to 188732. [2018-07-24 02:55:00,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188732 states. [2018-07-24 02:55:01,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188732 states to 188732 states and 202175 transitions. [2018-07-24 02:55:01,039 INFO L78 Accepts]: Start accepts. Automaton has 188732 states and 202175 transitions. Word has length 476 [2018-07-24 02:55:01,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:55:01,040 INFO L471 AbstractCegarLoop]: Abstraction has 188732 states and 202175 transitions. [2018-07-24 02:55:01,040 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:55:01,041 INFO L276 IsEmpty]: Start isEmpty. Operand 188732 states and 202175 transitions. [2018-07-24 02:55:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1041 [2018-07-24 02:55:01,209 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:55:01,210 INFO L353 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, 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, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:55:01,211 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:55:01,211 INFO L82 PathProgramCache]: Analyzing trace with hash 940748859, now seen corresponding path program 1 times [2018-07-24 02:55:01,211 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:55:01,211 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:55:01,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:55:01,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:55:01,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:55:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:55:02,444 WARN L169 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-07-24 02:55:02,936 WARN L169 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 16 [2018-07-24 02:55:03,472 WARN L169 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2018-07-24 02:55:11,208 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 355 proven. 116 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-07-24 02:55:11,209 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:55:11,209 INFO L221 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 [2018-07-24 02:55:11,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:55:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:55:11,580 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:55:13,118 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 471 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-07-24 02:55:13,139 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:55:13,140 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2018-07-24 02:55:13,141 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 02:55:13,141 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 02:55:13,142 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-24 02:55:13,142 INFO L87 Difference]: Start difference. First operand 188732 states and 202175 transitions. Second operand 11 states. [2018-07-24 02:55:36,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:55:36,142 INFO L93 Difference]: Finished difference Result 395336 states and 423452 transitions. [2018-07-24 02:55:36,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 02:55:36,143 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1040 [2018-07-24 02:55:36,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:55:36,385 INFO L225 Difference]: With dead ends: 395336 [2018-07-24 02:55:36,385 INFO L226 Difference]: Without dead ends: 207390 [2018-07-24 02:55:36,468 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1060 GetRequests, 1043 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2018-07-24 02:55:36,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207390 states. [2018-07-24 02:55:38,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207390 to 205743. [2018-07-24 02:55:38,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205743 states. [2018-07-24 02:55:38,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205743 states to 205743 states and 219211 transitions. [2018-07-24 02:55:38,839 INFO L78 Accepts]: Start accepts. Automaton has 205743 states and 219211 transitions. Word has length 1040 [2018-07-24 02:55:38,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:55:38,841 INFO L471 AbstractCegarLoop]: Abstraction has 205743 states and 219211 transitions. [2018-07-24 02:55:38,841 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 02:55:38,842 INFO L276 IsEmpty]: Start isEmpty. Operand 205743 states and 219211 transitions. [2018-07-24 02:55:39,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1319 [2018-07-24 02:55:39,024 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:55:39,026 INFO L353 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, 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, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 02:55:39,026 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:55:39,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1322165282, now seen corresponding path program 1 times [2018-07-24 02:55:39,027 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:55:39,027 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:55:39,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:55:39,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:55:39,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:55:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:55:43,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1377 backedges. 457 proven. 329 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2018-07-24 02:55:43,592 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:55:43,592 INFO L221 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 [2018-07-24 02:55:43,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:55:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:55:44,058 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:55:46,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1377 backedges. 786 proven. 0 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2018-07-24 02:55:46,092 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:55:46,093 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-07-24 02:55:46,096 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 02:55:46,096 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 02:55:46,096 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-07-24 02:55:46,097 INFO L87 Difference]: Start difference. First operand 205743 states and 219211 transitions. Second operand 8 states. Received shutdown request... [2018-07-24 02:56:10,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 02:56:10,223 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 02:56:10,228 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 02:56:10,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:56:10 BoogieIcfgContainer [2018-07-24 02:56:10,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 02:56:10,229 INFO L168 Benchmark]: Toolchain (without parser) took 233261.86 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.9 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-07-24 02:56:10,230 INFO L168 Benchmark]: CDTParser took 0.25 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. [2018-07-24 02:56:10,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2673.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-07-24 02:56:10,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 911.01 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 274.2 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -547.8 MB). Peak memory consumption was 217.2 MB. Max. memory is 7.1 GB. [2018-07-24 02:56:10,232 INFO L168 Benchmark]: Boogie Preprocessor took 1603.91 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 675.3 MB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -627.2 MB). Peak memory consumption was 136.2 MB. Max. memory is 7.1 GB. [2018-07-24 02:56:10,233 INFO L168 Benchmark]: RCFGBuilder took 14482.32 ms. Allocated memory was 2.5 GB in the beginning and 2.9 GB in the end (delta: 451.4 MB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -442.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 02:56:10,234 INFO L168 Benchmark]: TraceAbstraction took 213586.04 ms. Allocated memory was 2.9 GB in the beginning and 4.4 GB in the end (delta: 1.5 GB). Free memory was 2.7 GB in the beginning and 2.6 GB in the end (delta: 70.6 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-07-24 02:56:10,240 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 2673.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 911.01 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 274.2 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -547.8 MB). Peak memory consumption was 217.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1603.91 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 675.3 MB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -627.2 MB). Peak memory consumption was 136.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14482.32 ms. Allocated memory was 2.5 GB in the beginning and 2.9 GB in the end (delta: 451.4 MB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -442.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 213586.04 ms. Allocated memory was 2.9 GB in the beginning and 4.4 GB in the end (delta: 1.5 GB). Free memory was 2.7 GB in the beginning and 2.6 GB in the end (delta: 70.6 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 132]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 132). Cancelled while BasicCegarLoop was constructing difference of abstraction (205743states) and interpolant automaton (currently 9 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (139786 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 213.5s OverallTime, 12 OverallIterations, 6 TraceHistogramMax, 179.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8778 SDtfs, 32738 SDslu, 3527 SDs, 0 SdLazy, 73866 SolverSat, 14049 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 150.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2679 GetRequests, 2612 SyntacticMatches, 19 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=205743occurred 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: 9.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 28960 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 7409 NumberOfCodeBlocks, 7409 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 7394 ConstructedInterpolants, 0 QuantifiedInterpolants, 38784907 SizeOfPredicates, 3 NumberOfNonLiveVariables, 3049 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 6555/7004 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label31_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_02-56-10-258.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label31_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_02-56-10-258.csv Completed graceful shutdown