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_label21_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 00:37:00,785 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 00:37:00,787 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 00:37:00,799 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 00:37:00,799 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 00:37:00,800 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 00:37:00,802 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 00:37:00,804 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 00:37:00,806 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 00:37:00,807 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 00:37:00,808 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 00:37:00,808 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 00:37:00,809 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 00:37:00,810 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 00:37:00,811 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 00:37:00,812 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 00:37:00,813 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 00:37:00,815 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 00:37:00,818 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 00:37:00,820 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 00:37:00,821 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 00:37:00,822 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 00:37:00,825 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-24 00:37:00,835 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 00:37:00,850 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 00:37:00,851 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 00:37:00,852 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 00:37:00,852 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 00:37:00,853 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 00:37:00,853 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 00:37:00,853 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 00:37:00,854 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 00:37:00,854 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 00:37:00,854 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 00:37:00,854 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 00:37:00,855 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 00:37:00,855 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 00:37:00,855 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 00:37:00,855 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 00:37:00,856 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 00:37:00,856 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 00:37:00,856 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 00:37:00,856 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 00:37:00,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 00:37:00,857 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 00:37:00,857 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 00:37:00,857 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 00:37:00,857 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 00:37:00,858 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 00:37:00,858 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 00:37:00,858 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 00:37:00,858 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 00:37:00,926 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 00:37:00,945 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 00:37:00,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 00:37:00,956 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 00:37:00,956 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 00:37:00,957 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label21_false-unreach-call.c [2018-07-24 00:37:01,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac081cc99/2dfa858e573545059f2be1afc1d3d404/FLAGe371934ec [2018-07-24 00:37:01,840 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 00:37:01,841 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label21_false-unreach-call.c [2018-07-24 00:37:01,885 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac081cc99/2dfa858e573545059f2be1afc1d3d404/FLAGe371934ec [2018-07-24 00:37:01,908 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac081cc99/2dfa858e573545059f2be1afc1d3d404 [2018-07-24 00:37:01,921 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 00:37:01,923 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 00:37:01,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 00:37:01,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 00:37:01,932 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 00:37:01,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:37:01" (1/1) ... [2018-07-24 00:37:01,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dd28deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:01, skipping insertion in model container [2018-07-24 00:37:01,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:37:01" (1/1) ... [2018-07-24 00:37:02,366 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 00:37:03,678 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:37:03,701 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 00:37:04,450 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:37:04,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:04 WrapperNode [2018-07-24 00:37:04,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 00:37:04,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 00:37:04,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 00:37:04,769 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 00:37:04,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:04" (1/1) ... [2018-07-24 00:37:04,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:04" (1/1) ... [2018-07-24 00:37:05,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 00:37:05,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 00:37:05,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 00:37:05,667 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 00:37:06,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:04" (1/1) ... [2018-07-24 00:37:06,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:04" (1/1) ... [2018-07-24 00:37:06,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:04" (1/1) ... [2018-07-24 00:37:06,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:04" (1/1) ... [2018-07-24 00:37:07,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:04" (1/1) ... [2018-07-24 00:37:07,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:04" (1/1) ... [2018-07-24 00:37:07,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:04" (1/1) ... [2018-07-24 00:37:07,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 00:37:07,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 00:37:07,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 00:37:07,309 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 00:37:07,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:04" (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 00:37:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 00:37:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 00:37:07,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 00:37:22,917 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 00:37:22,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:37:22 BoogieIcfgContainer [2018-07-24 00:37:22,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 00:37:22,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 00:37:22,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 00:37:22,923 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 00:37:22,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:37:01" (1/3) ... [2018-07-24 00:37:22,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537c0a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:37:22, skipping insertion in model container [2018-07-24 00:37:22,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:04" (2/3) ... [2018-07-24 00:37:22,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537c0a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:37:22, skipping insertion in model container [2018-07-24 00:37:22,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:37:22" (3/3) ... [2018-07-24 00:37:22,930 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label21_false-unreach-call.c [2018-07-24 00:37:22,939 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 00:37:22,948 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 00:37:23,014 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 00:37:23,015 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 00:37:23,015 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 00:37:23,015 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 00:37:23,016 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 00:37:23,016 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 00:37:23,016 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 00:37:23,016 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 00:37:23,018 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 00:37:23,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-07-24 00:37:23,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-24 00:37:23,072 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:37:23,074 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] [2018-07-24 00:37:23,074 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:37:23,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1407492386, now seen corresponding path program 1 times [2018-07-24 00:37:23,081 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:37:23,081 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:37:23,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:23,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:37:23,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:37:23,470 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 00:37:23,480 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:37:23,481 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:37:23,488 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:37:23,503 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:37:23,504 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:37:23,507 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-07-24 00:37:39,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:37:39,222 INFO L93 Difference]: Finished difference Result 3896 states and 7286 transitions. [2018-07-24 00:37:39,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:37:39,224 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-07-24 00:37:39,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:37:39,267 INFO L225 Difference]: With dead ends: 3896 [2018-07-24 00:37:39,267 INFO L226 Difference]: Without dead ends: 2790 [2018-07-24 00:37:39,278 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 00:37:39,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2018-07-24 00:37:39,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 1945. [2018-07-24 00:37:39,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1945 states. [2018-07-24 00:37:39,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 3412 transitions. [2018-07-24 00:37:39,441 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 3412 transitions. Word has length 21 [2018-07-24 00:37:39,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:37:39,442 INFO L471 AbstractCegarLoop]: Abstraction has 1945 states and 3412 transitions. [2018-07-24 00:37:39,442 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:37:39,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 3412 transitions. [2018-07-24 00:37:39,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-24 00:37:39,448 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:37:39,448 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 00:37:39,449 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:37:39,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1679127623, now seen corresponding path program 1 times [2018-07-24 00:37:39,449 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:37:39,450 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:37:39,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:39,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:37:39,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:37:39,754 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:37:39,755 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:37:39,755 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:37:39,757 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:37:39,757 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:37:39,757 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:37:39,758 INFO L87 Difference]: Start difference. First operand 1945 states and 3412 transitions. Second operand 4 states. [2018-07-24 00:37:52,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:37:52,420 INFO L93 Difference]: Finished difference Result 5486 states and 9768 transitions. [2018-07-24 00:37:52,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:37:52,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 87 [2018-07-24 00:37:52,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:37:52,442 INFO L225 Difference]: With dead ends: 5486 [2018-07-24 00:37:52,443 INFO L226 Difference]: Without dead ends: 3543 [2018-07-24 00:37:52,447 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:37:52,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2018-07-24 00:37:52,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3542. [2018-07-24 00:37:52,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3542 states. [2018-07-24 00:37:52,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3542 states to 3542 states and 5575 transitions. [2018-07-24 00:37:52,528 INFO L78 Accepts]: Start accepts. Automaton has 3542 states and 5575 transitions. Word has length 87 [2018-07-24 00:37:52,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:37:52,529 INFO L471 AbstractCegarLoop]: Abstraction has 3542 states and 5575 transitions. [2018-07-24 00:37:52,529 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:37:52,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3542 states and 5575 transitions. [2018-07-24 00:37:52,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-07-24 00:37:52,532 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:37:52,533 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 00:37:52,533 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:37:52,533 INFO L82 PathProgramCache]: Analyzing trace with hash 853637182, now seen corresponding path program 1 times [2018-07-24 00:37:52,533 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:37:52,533 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:37:52,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:52,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:37:52,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:37:52,663 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:37:52,664 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:37:52,664 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:37:52,665 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:37:52,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:37:52,665 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:37:52,665 INFO L87 Difference]: Start difference. First operand 3542 states and 5575 transitions. Second operand 4 states. [2018-07-24 00:38:08,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:38:08,117 INFO L93 Difference]: Finished difference Result 13432 states and 21347 transitions. [2018-07-24 00:38:08,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:38:08,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2018-07-24 00:38:08,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:38:08,164 INFO L225 Difference]: With dead ends: 13432 [2018-07-24 00:38:08,164 INFO L226 Difference]: Without dead ends: 9892 [2018-07-24 00:38:08,171 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:38:08,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9892 states. [2018-07-24 00:38:08,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9892 to 9885. [2018-07-24 00:38:08,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9885 states. [2018-07-24 00:38:08,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9885 states to 9885 states and 14067 transitions. [2018-07-24 00:38:08,359 INFO L78 Accepts]: Start accepts. Automaton has 9885 states and 14067 transitions. Word has length 89 [2018-07-24 00:38:08,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:38:08,360 INFO L471 AbstractCegarLoop]: Abstraction has 9885 states and 14067 transitions. [2018-07-24 00:38:08,360 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:38:08,360 INFO L276 IsEmpty]: Start isEmpty. Operand 9885 states and 14067 transitions. [2018-07-24 00:38:08,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-24 00:38:08,364 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:38:08,364 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 00:38:08,364 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:38:08,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1543451020, now seen corresponding path program 1 times [2018-07-24 00:38:08,365 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:38:08,365 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:38:08,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:08,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:38:08,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:38:08,730 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 00:38:08,911 WARN L169 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-07-24 00:38:09,081 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:38:09,082 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:38:09,082 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 00:38:09,083 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 00:38:09,083 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 00:38:09,083 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:38:09,083 INFO L87 Difference]: Start difference. First operand 9885 states and 14067 transitions. Second operand 6 states. [2018-07-24 00:38:31,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:38:31,312 INFO L93 Difference]: Finished difference Result 39564 states and 55406 transitions. [2018-07-24 00:38:31,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 00:38:31,314 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-07-24 00:38:31,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:38:31,398 INFO L225 Difference]: With dead ends: 39564 [2018-07-24 00:38:31,398 INFO L226 Difference]: Without dead ends: 29681 [2018-07-24 00:38:31,412 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:38:31,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29681 states. [2018-07-24 00:38:31,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29681 to 28836. [2018-07-24 00:38:31,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28836 states. [2018-07-24 00:38:31,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28836 states to 28836 states and 35053 transitions. [2018-07-24 00:38:31,851 INFO L78 Accepts]: Start accepts. Automaton has 28836 states and 35053 transitions. Word has length 133 [2018-07-24 00:38:31,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:38:31,851 INFO L471 AbstractCegarLoop]: Abstraction has 28836 states and 35053 transitions. [2018-07-24 00:38:31,852 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 00:38:31,852 INFO L276 IsEmpty]: Start isEmpty. Operand 28836 states and 35053 transitions. [2018-07-24 00:38:31,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-24 00:38:31,855 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:38:31,856 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 00:38:31,857 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:38:31,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1632760234, now seen corresponding path program 1 times [2018-07-24 00:38:31,857 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:38:31,857 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:38:31,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:31,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:38:31,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:38:32,014 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:38:32,015 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:38:32,015 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:38:32,015 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:38:32,016 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:38:32,016 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:38:32,016 INFO L87 Difference]: Start difference. First operand 28836 states and 35053 transitions. Second operand 3 states. [2018-07-24 00:38:38,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:38:38,995 INFO L93 Difference]: Finished difference Result 78935 states and 96926 transitions. [2018-07-24 00:38:38,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:38:38,996 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2018-07-24 00:38:38,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:38:39,087 INFO L225 Difference]: With dead ends: 78935 [2018-07-24 00:38:39,087 INFO L226 Difference]: Without dead ends: 46136 [2018-07-24 00:38:39,127 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 00:38:39,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46136 states. [2018-07-24 00:38:39,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46136 to 42193. [2018-07-24 00:38:39,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42193 states. [2018-07-24 00:38:39,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42193 states to 42193 states and 50360 transitions. [2018-07-24 00:38:39,661 INFO L78 Accepts]: Start accepts. Automaton has 42193 states and 50360 transitions. Word has length 147 [2018-07-24 00:38:39,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:38:39,662 INFO L471 AbstractCegarLoop]: Abstraction has 42193 states and 50360 transitions. [2018-07-24 00:38:39,662 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:38:39,662 INFO L276 IsEmpty]: Start isEmpty. Operand 42193 states and 50360 transitions. [2018-07-24 00:38:39,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-07-24 00:38:39,666 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:38:39,666 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 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 00:38:39,667 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:38:39,667 INFO L82 PathProgramCache]: Analyzing trace with hash 194313023, now seen corresponding path program 1 times [2018-07-24 00:38:39,667 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:38:39,669 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:38:39,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:39,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:38:39,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:38:40,097 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-07-24 00:38:40,098 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:38:40,098 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:38:40,098 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:38:40,099 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:38:40,099 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:38:40,099 INFO L87 Difference]: Start difference. First operand 42193 states and 50360 transitions. Second operand 4 states. [2018-07-24 00:38:56,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:38:56,165 INFO L93 Difference]: Finished difference Result 124596 states and 152055 transitions. [2018-07-24 00:38:56,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:38:56,166 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 235 [2018-07-24 00:38:56,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:38:56,259 INFO L225 Difference]: With dead ends: 124596 [2018-07-24 00:38:56,260 INFO L226 Difference]: Without dead ends: 80822 [2018-07-24 00:38:56,308 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 00:38:56,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80822 states. [2018-07-24 00:38:57,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80822 to 80011. [2018-07-24 00:38:57,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80011 states. [2018-07-24 00:38:57,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80011 states to 80011 states and 93627 transitions. [2018-07-24 00:38:57,190 INFO L78 Accepts]: Start accepts. Automaton has 80011 states and 93627 transitions. Word has length 235 [2018-07-24 00:38:57,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:38:57,190 INFO L471 AbstractCegarLoop]: Abstraction has 80011 states and 93627 transitions. [2018-07-24 00:38:57,190 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:38:57,191 INFO L276 IsEmpty]: Start isEmpty. Operand 80011 states and 93627 transitions. [2018-07-24 00:38:57,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-07-24 00:38:57,199 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:38:57,199 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:38:57,199 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:38:57,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1947080896, now seen corresponding path program 1 times [2018-07-24 00:38:57,200 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:38:57,200 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:38:57,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:57,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:38:57,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:38:57,665 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-07-24 00:38:57,666 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:38:57,666 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:38:57,667 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 00:38:57,667 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 00:38:57,667 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:38:57,667 INFO L87 Difference]: Start difference. First operand 80011 states and 93627 transitions. Second operand 5 states. [2018-07-24 00:39:22,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:39:22,220 INFO L93 Difference]: Finished difference Result 261980 states and 308050 transitions. [2018-07-24 00:39:22,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 00:39:22,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 308 [2018-07-24 00:39:22,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:39:22,561 INFO L225 Difference]: With dead ends: 261980 [2018-07-24 00:39:22,562 INFO L226 Difference]: Without dead ends: 181971 [2018-07-24 00:39:22,638 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:39:22,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181971 states. [2018-07-24 00:39:25,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181971 to 169935. [2018-07-24 00:39:25,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169935 states. [2018-07-24 00:39:25,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169935 states to 169935 states and 196306 transitions. [2018-07-24 00:39:25,270 INFO L78 Accepts]: Start accepts. Automaton has 169935 states and 196306 transitions. Word has length 308 [2018-07-24 00:39:25,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:39:25,271 INFO L471 AbstractCegarLoop]: Abstraction has 169935 states and 196306 transitions. [2018-07-24 00:39:25,271 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 00:39:25,271 INFO L276 IsEmpty]: Start isEmpty. Operand 169935 states and 196306 transitions. [2018-07-24 00:39:25,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2018-07-24 00:39:25,293 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:39:25,293 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:39:25,294 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:39:25,294 INFO L82 PathProgramCache]: Analyzing trace with hash 507827361, now seen corresponding path program 1 times [2018-07-24 00:39:25,294 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:39:25,294 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:39:25,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:39:25,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:39:25,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:39:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:39:26,051 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 262 proven. 110 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-07-24 00:39:26,051 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:39:26,052 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 00:39:26,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:39:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:39:26,224 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:39:26,492 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-07-24 00:39:26,515 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:39:26,515 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-07-24 00:39:26,516 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 00:39:26,516 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 00:39:26,517 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-07-24 00:39:26,517 INFO L87 Difference]: Start difference. First operand 169935 states and 196306 transitions. Second operand 8 states. [2018-07-24 00:40:00,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:40:00,175 INFO L93 Difference]: Finished difference Result 397448 states and 458016 transitions. [2018-07-24 00:40:00,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-24 00:40:00,176 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 375 [2018-07-24 00:40:00,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:40:00,540 INFO L225 Difference]: With dead ends: 397448 [2018-07-24 00:40:00,540 INFO L226 Difference]: Without dead ends: 214877 [2018-07-24 00:40:00,640 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-07-24 00:40:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214877 states. [2018-07-24 00:40:04,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214877 to 201454. [2018-07-24 00:40:04,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201454 states. [2018-07-24 00:40:04,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201454 states to 201454 states and 218417 transitions. [2018-07-24 00:40:04,660 INFO L78 Accepts]: Start accepts. Automaton has 201454 states and 218417 transitions. Word has length 375 [2018-07-24 00:40:04,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:40:04,660 INFO L471 AbstractCegarLoop]: Abstraction has 201454 states and 218417 transitions. [2018-07-24 00:40:04,660 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 00:40:04,660 INFO L276 IsEmpty]: Start isEmpty. Operand 201454 states and 218417 transitions. [2018-07-24 00:40:04,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2018-07-24 00:40:04,679 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:40:04,680 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 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 00:40:04,680 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:40:04,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1318216046, now seen corresponding path program 1 times [2018-07-24 00:40:04,680 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:40:04,681 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:40:04,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:40:04,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:40:04,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:40:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:40:05,175 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-07-24 00:40:05,316 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 372 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-07-24 00:40:05,316 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:40:05,316 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:40:05,317 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:40:05,317 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:40:05,317 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:40:05,318 INFO L87 Difference]: Start difference. First operand 201454 states and 218417 transitions. Second operand 4 states. [2018-07-24 00:40:25,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:40:25,998 INFO L93 Difference]: Finished difference Result 445673 states and 484423 transitions. [2018-07-24 00:40:25,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:40:25,998 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 451 [2018-07-24 00:40:26,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:40:26,301 INFO L225 Difference]: With dead ends: 445673 [2018-07-24 00:40:26,301 INFO L226 Difference]: Without dead ends: 245009 [2018-07-24 00:40:26,426 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:40:26,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245009 states. [2018-07-24 00:40:28,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245009 to 236935. [2018-07-24 00:40:28,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236935 states. [2018-07-24 00:40:28,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236935 states to 236935 states and 257148 transitions. [2018-07-24 00:40:28,863 INFO L78 Accepts]: Start accepts. Automaton has 236935 states and 257148 transitions. Word has length 451 [2018-07-24 00:40:28,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:40:28,864 INFO L471 AbstractCegarLoop]: Abstraction has 236935 states and 257148 transitions. [2018-07-24 00:40:28,864 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:40:28,865 INFO L276 IsEmpty]: Start isEmpty. Operand 236935 states and 257148 transitions. [2018-07-24 00:40:28,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2018-07-24 00:40:28,883 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:40:28,884 INFO L353 BasicCegarLoop]: trace histogram [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, 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] [2018-07-24 00:40:28,884 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:40:28,885 INFO L82 PathProgramCache]: Analyzing trace with hash -873033612, now seen corresponding path program 1 times [2018-07-24 00:40:28,885 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:40:28,885 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:40:28,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:40:28,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:40:28,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:40:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:40:29,485 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 391 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-07-24 00:40:29,485 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:40:29,485 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:40:29,486 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:40:29,486 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:40:29,486 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:40:29,486 INFO L87 Difference]: Start difference. First operand 236935 states and 257148 transitions. Second operand 4 states. [2018-07-24 00:40:44,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:40:44,225 INFO L93 Difference]: Finished difference Result 473046 states and 514143 transitions. [2018-07-24 00:40:44,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:40:44,225 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 508 [2018-07-24 00:40:44,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:40:44,516 INFO L225 Difference]: With dead ends: 473046 [2018-07-24 00:40:44,517 INFO L226 Difference]: Without dead ends: 236901 [2018-07-24 00:40:44,596 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 3 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 00:40:44,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236901 states. [2018-07-24 00:40:47,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236901 to 221919. [2018-07-24 00:40:47,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221919 states. [2018-07-24 00:40:47,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221919 states to 221919 states and 235264 transitions. [2018-07-24 00:40:47,819 INFO L78 Accepts]: Start accepts. Automaton has 221919 states and 235264 transitions. Word has length 508 [2018-07-24 00:40:47,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:40:47,820 INFO L471 AbstractCegarLoop]: Abstraction has 221919 states and 235264 transitions. [2018-07-24 00:40:47,820 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:40:47,820 INFO L276 IsEmpty]: Start isEmpty. Operand 221919 states and 235264 transitions. [2018-07-24 00:40:47,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2018-07-24 00:40:47,833 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:40:47,833 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:40:47,834 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:40:47,834 INFO L82 PathProgramCache]: Analyzing trace with hash -662250607, now seen corresponding path program 1 times [2018-07-24 00:40:47,834 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:40:47,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:40:47,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:40:47,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:40:47,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:40:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:40:48,349 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-07-24 00:40:48,349 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:40:48,350 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:40:48,350 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:40:48,351 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:40:48,351 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:40:48,351 INFO L87 Difference]: Start difference. First operand 221919 states and 235264 transitions. Second operand 4 states. Received shutdown request... [2018-07-24 00:40:53,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:40:53,087 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 00:40:53,092 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 00:40:53,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:40:53 BoogieIcfgContainer [2018-07-24 00:40:53,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 00:40:53,094 INFO L168 Benchmark]: Toolchain (without parser) took 231172.20 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 1.9 GB in the end (delta: -468.4 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-07-24 00:40:53,095 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 00:40:53,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2844.22 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 00:40:53,096 INFO L168 Benchmark]: Boogie Procedure Inliner took 897.63 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 292.6 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -569.8 MB). Peak memory consumption was 212.9 MB. Max. memory is 7.1 GB. [2018-07-24 00:40:53,097 INFO L168 Benchmark]: Boogie Preprocessor took 1640.94 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 643.8 MB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -595.0 MB). Peak memory consumption was 136.9 MB. Max. memory is 7.1 GB. [2018-07-24 00:40:53,098 INFO L168 Benchmark]: RCFGBuilder took 15610.51 ms. Allocated memory was 2.5 GB in the beginning and 2.9 GB in the end (delta: 490.7 MB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -480.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 00:40:53,099 INFO L168 Benchmark]: TraceAbstraction took 210173.58 ms. Allocated memory was 2.9 GB in the beginning and 3.7 GB in the end (delta: 758.1 MB). Free memory was 2.7 GB in the beginning and 1.9 GB in the end (delta: 837.5 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-07-24 00:40:53,104 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2844.22 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 897.63 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 292.6 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -569.8 MB). Peak memory consumption was 212.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1640.94 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 643.8 MB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -595.0 MB). Peak memory consumption was 136.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15610.51 ms. Allocated memory was 2.5 GB in the beginning and 2.9 GB in the end (delta: 490.7 MB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -480.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 210173.58 ms. Allocated memory was 2.9 GB in the beginning and 3.7 GB in the end (delta: 758.1 MB). Free memory was 2.7 GB in the beginning and 1.9 GB in the end (delta: 837.5 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: 72]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 72). Cancelled while BasicCegarLoop was constructing difference of abstraction (221919states) and interpolant automaton (currently 4 states, 4 states before enhancement), while ReachableStatesComputation was computing reachable states (45916 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 210.0s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 189.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10061 SDtfs, 35015 SDslu, 3892 SDs, 0 SdLazy, 75012 SolverSat, 14115 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 158.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 440 GetRequests, 398 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236935occurred in iteration=9, 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: 14.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 54967 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 3324 NumberOfCodeBlocks, 3324 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3312 ConstructedInterpolants, 0 QuantifiedInterpolants, 3841987 SizeOfPredicates, 0 NumberOfNonLiveVariables, 500 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 2933/3043 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_label21_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_00-40-53-120.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label21_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_00-40-53-120.csv Completed graceful shutdown