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/Problem12_label25_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 00:30:26,849 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 00:30:26,851 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 00:30:26,864 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 00:30:26,864 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 00:30:26,865 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 00:30:26,867 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 00:30:26,868 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 00:30:26,870 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 00:30:26,871 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 00:30:26,872 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 00:30:26,872 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 00:30:26,873 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 00:30:26,874 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 00:30:26,876 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 00:30:26,876 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 00:30:26,877 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 00:30:26,880 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 00:30:26,882 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 00:30:26,889 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 00:30:26,890 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 00:30:26,892 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 00:30:26,895 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 00:30:26,896 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 00:30:26,896 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 00:30:26,899 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 00:30:26,900 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 00:30:26,901 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 00:30:26,902 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 00:30:26,903 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 00:30:26,906 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 00:30:26,907 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-24 00:30:26,911 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 00:30:26,932 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 00:30:26,932 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 00:30:26,933 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 00:30:26,934 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 00:30:26,934 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 00:30:26,935 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 00:30:26,935 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 00:30:26,936 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 00:30:26,936 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 00:30:26,936 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 00:30:26,936 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 00:30:26,937 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 00:30:26,937 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 00:30:26,937 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 00:30:26,937 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 00:30:26,938 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 00:30:26,938 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 00:30:26,938 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 00:30:26,938 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 00:30:26,939 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 00:30:26,939 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 00:30:26,939 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 00:30:26,940 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 00:30:26,940 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 00:30:26,940 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 00:30:26,940 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 00:30:26,940 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 00:30:26,941 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 00:30:26,986 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 00:30:27,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 00:30:27,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 00:30:27,011 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 00:30:27,012 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 00:30:27,012 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label25_false-unreach-call.c [2018-07-24 00:30:27,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec8bde4c8/c17f37f96df547e28a2f45a693b1a702/FLAG3dbc15bcb [2018-07-24 00:30:27,820 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 00:30:27,821 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label25_false-unreach-call.c [2018-07-24 00:30:27,860 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec8bde4c8/c17f37f96df547e28a2f45a693b1a702/FLAG3dbc15bcb [2018-07-24 00:30:27,880 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec8bde4c8/c17f37f96df547e28a2f45a693b1a702 [2018-07-24 00:30:27,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 00:30:27,896 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 00:30:27,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 00:30:27,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 00:30:27,904 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 00:30:27,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:30:27" (1/1) ... [2018-07-24 00:30:27,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47db165b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:30:27, skipping insertion in model container [2018-07-24 00:30:27,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:30:27" (1/1) ... [2018-07-24 00:30:28,294 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 00:30:29,384 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:30:29,403 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 00:30:30,080 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:30:30,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:30:30 WrapperNode [2018-07-24 00:30:30,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 00:30:30,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 00:30:30,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 00:30:30,344 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 00:30:30,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:30:30" (1/1) ... [2018-07-24 00:30:30,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:30:30" (1/1) ... [2018-07-24 00:30:30,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 00:30:30,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 00:30:30,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 00:30:30,766 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 00:30:31,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:30:30" (1/1) ... [2018-07-24 00:30:31,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:30:30" (1/1) ... [2018-07-24 00:30:31,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:30:30" (1/1) ... [2018-07-24 00:30:31,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:30:30" (1/1) ... [2018-07-24 00:30:31,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:30:30" (1/1) ... [2018-07-24 00:30:31,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:30:30" (1/1) ... [2018-07-24 00:30:31,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:30:30" (1/1) ... [2018-07-24 00:30:31,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 00:30:31,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 00:30:31,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 00:30:31,881 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 00:30:31,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:30:30" (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 00:30:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 00:30:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 00:30:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 00:30:40,637 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 00:30:40,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:30:40 BoogieIcfgContainer [2018-07-24 00:30:40,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 00:30:40,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 00:30:40,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 00:30:40,642 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 00:30:40,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:30:27" (1/3) ... [2018-07-24 00:30:40,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395dc685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:30:40, skipping insertion in model container [2018-07-24 00:30:40,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:30:30" (2/3) ... [2018-07-24 00:30:40,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395dc685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:30:40, skipping insertion in model container [2018-07-24 00:30:40,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:30:40" (3/3) ... [2018-07-24 00:30:40,646 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label25_false-unreach-call.c [2018-07-24 00:30:40,656 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 00:30:40,669 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 00:30:40,724 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 00:30:40,724 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 00:30:40,725 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 00:30:40,725 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 00:30:40,725 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 00:30:40,725 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 00:30:40,725 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 00:30:40,725 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 00:30:40,726 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 00:30:40,760 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-07-24 00:30:40,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-24 00:30:40,767 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:30:40,768 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:30:40,769 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:30:40,774 INFO L82 PathProgramCache]: Analyzing trace with hash 670581594, now seen corresponding path program 1 times [2018-07-24 00:30:40,776 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:30:40,777 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:30:40,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:30:40,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:30:40,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:30:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:30:41,269 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 00:30:41,272 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:30:41,272 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:30:41,277 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:30:41,292 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:30:41,293 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:30:41,296 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-07-24 00:30:54,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:30:54,954 INFO L93 Difference]: Finished difference Result 3146 states and 6134 transitions. [2018-07-24 00:30:54,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:30:54,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-07-24 00:30:54,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:30:55,000 INFO L225 Difference]: With dead ends: 3146 [2018-07-24 00:30:55,000 INFO L226 Difference]: Without dead ends: 2320 [2018-07-24 00:30:55,009 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:30:55,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2018-07-24 00:30:55,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2018-07-24 00:30:55,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2018-07-24 00:30:55,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3858 transitions. [2018-07-24 00:30:55,177 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3858 transitions. Word has length 18 [2018-07-24 00:30:55,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:30:55,177 INFO L471 AbstractCegarLoop]: Abstraction has 2320 states and 3858 transitions. [2018-07-24 00:30:55,178 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:30:55,178 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3858 transitions. [2018-07-24 00:30:55,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-24 00:30:55,182 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:30:55,182 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 00:30:55,183 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:30:55,183 INFO L82 PathProgramCache]: Analyzing trace with hash 2058345961, now seen corresponding path program 1 times [2018-07-24 00:30:55,183 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:30:55,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:30:55,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:30:55,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:30:55,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:30:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:30:55,503 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:30:55,504 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:30:55,504 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 00:30:55,506 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 00:30:55,506 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 00:30:55,506 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:30:55,506 INFO L87 Difference]: Start difference. First operand 2320 states and 3858 transitions. Second operand 5 states. [2018-07-24 00:31:06,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:31:06,955 INFO L93 Difference]: Finished difference Result 9150 states and 15304 transitions. [2018-07-24 00:31:06,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:31:06,956 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2018-07-24 00:31:06,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:31:06,991 INFO L225 Difference]: With dead ends: 9150 [2018-07-24 00:31:06,991 INFO L226 Difference]: Without dead ends: 6832 [2018-07-24 00:31:06,996 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:31:07,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2018-07-24 00:31:07,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6832. [2018-07-24 00:31:07,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6832 states. [2018-07-24 00:31:07,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 9936 transitions. [2018-07-24 00:31:07,121 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 9936 transitions. Word has length 90 [2018-07-24 00:31:07,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:31:07,122 INFO L471 AbstractCegarLoop]: Abstraction has 6832 states and 9936 transitions. [2018-07-24 00:31:07,122 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 00:31:07,122 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 9936 transitions. [2018-07-24 00:31:07,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-07-24 00:31:07,128 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:31:07,128 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 00:31:07,128 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:31:07,128 INFO L82 PathProgramCache]: Analyzing trace with hash -874139782, now seen corresponding path program 1 times [2018-07-24 00:31:07,129 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:31:07,129 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:31:07,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:31:07,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:31:07,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:31:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:31:07,768 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 4 [2018-07-24 00:31:07,920 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:31:07,921 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:31:07,921 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 00:31:07,921 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 00:31:07,922 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 00:31:07,922 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:31:07,922 INFO L87 Difference]: Start difference. First operand 6832 states and 9936 transitions. Second operand 6 states. [2018-07-24 00:31:22,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:31:22,173 INFO L93 Difference]: Finished difference Result 21934 states and 31609 transitions. [2018-07-24 00:31:22,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 00:31:22,174 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2018-07-24 00:31:22,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:31:22,241 INFO L225 Difference]: With dead ends: 21934 [2018-07-24 00:31:22,241 INFO L226 Difference]: Without dead ends: 15104 [2018-07-24 00:31:22,251 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-07-24 00:31:22,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15104 states. [2018-07-24 00:31:22,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15104 to 15104. [2018-07-24 00:31:22,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15104 states. [2018-07-24 00:31:22,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15104 states to 15104 states and 21135 transitions. [2018-07-24 00:31:22,513 INFO L78 Accepts]: Start accepts. Automaton has 15104 states and 21135 transitions. Word has length 96 [2018-07-24 00:31:22,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:31:22,513 INFO L471 AbstractCegarLoop]: Abstraction has 15104 states and 21135 transitions. [2018-07-24 00:31:22,514 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 00:31:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 15104 states and 21135 transitions. [2018-07-24 00:31:22,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-07-24 00:31:22,518 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:31:22,518 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2018-07-24 00:31:22,518 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:31:22,519 INFO L82 PathProgramCache]: Analyzing trace with hash -229758007, now seen corresponding path program 1 times [2018-07-24 00:31:22,519 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:31:22,519 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:31:22,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:31:22,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:31:22,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:31:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:31:22,927 WARN L169 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-07-24 00:31:23,197 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 97 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:31:23,198 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:31:23,198 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 00:31:23,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:31:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:31:23,324 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:31:23,389 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:31:23,415 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:31:23,415 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-07-24 00:31:23,416 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 00:31:23,416 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 00:31:23,416 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-07-24 00:31:23,417 INFO L87 Difference]: Start difference. First operand 15104 states and 21135 transitions. Second operand 7 states. [2018-07-24 00:31:47,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:31:47,402 INFO L93 Difference]: Finished difference Result 79868 states and 112723 transitions. [2018-07-24 00:31:47,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 00:31:47,402 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 168 [2018-07-24 00:31:47,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:31:47,525 INFO L225 Difference]: With dead ends: 79868 [2018-07-24 00:31:47,526 INFO L226 Difference]: Without dead ends: 63259 [2018-07-24 00:31:47,552 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 169 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-07-24 00:31:47,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63259 states. [2018-07-24 00:31:48,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63259 to 40671. [2018-07-24 00:31:48,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40671 states. [2018-07-24 00:31:48,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40671 states to 40671 states and 48760 transitions. [2018-07-24 00:31:48,376 INFO L78 Accepts]: Start accepts. Automaton has 40671 states and 48760 transitions. Word has length 168 [2018-07-24 00:31:48,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:31:48,376 INFO L471 AbstractCegarLoop]: Abstraction has 40671 states and 48760 transitions. [2018-07-24 00:31:48,376 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 00:31:48,377 INFO L276 IsEmpty]: Start isEmpty. Operand 40671 states and 48760 transitions. [2018-07-24 00:31:48,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2018-07-24 00:31:48,385 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:31:48,385 INFO L353 BasicCegarLoop]: trace histogram [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, 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] [2018-07-24 00:31:48,385 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:31:48,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1081498617, now seen corresponding path program 1 times [2018-07-24 00:31:48,386 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:31:48,386 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:31:48,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:31:48,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:31:48,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:31:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:31:48,859 WARN L169 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-24 00:31:49,180 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 149 proven. 8 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-07-24 00:31:49,180 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:31:49,180 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 00:31:49,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:31:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:31:49,309 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:31:49,633 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2018-07-24 00:31:49,655 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:31:49,655 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-07-24 00:31:49,656 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 00:31:49,656 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 00:31:49,656 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-07-24 00:31:49,657 INFO L87 Difference]: Start difference. First operand 40671 states and 48760 transitions. Second operand 7 states. [2018-07-24 00:32:02,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:32:02,783 INFO L93 Difference]: Finished difference Result 100141 states and 119658 transitions. [2018-07-24 00:32:02,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 00:32:02,784 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 339 [2018-07-24 00:32:02,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:32:02,919 INFO L225 Difference]: With dead ends: 100141 [2018-07-24 00:32:02,919 INFO L226 Difference]: Without dead ends: 54950 [2018-07-24 00:32:02,962 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 342 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-07-24 00:32:02,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54950 states. [2018-07-24 00:32:03,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54950 to 51190. [2018-07-24 00:32:03,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51190 states. [2018-07-24 00:32:03,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51190 states to 51190 states and 57947 transitions. [2018-07-24 00:32:03,591 INFO L78 Accepts]: Start accepts. Automaton has 51190 states and 57947 transitions. Word has length 339 [2018-07-24 00:32:03,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:32:03,592 INFO L471 AbstractCegarLoop]: Abstraction has 51190 states and 57947 transitions. [2018-07-24 00:32:03,592 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 00:32:03,592 INFO L276 IsEmpty]: Start isEmpty. Operand 51190 states and 57947 transitions. [2018-07-24 00:32:03,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2018-07-24 00:32:03,623 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:32:03,623 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 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 00:32:03,623 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:32:03,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1686855377, now seen corresponding path program 1 times [2018-07-24 00:32:03,624 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:32:03,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:32:03,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:03,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:32:03,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:32:04,163 WARN L169 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2018-07-24 00:32:04,413 WARN L169 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2018-07-24 00:32:04,858 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 511 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-07-24 00:32:04,858 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:32:04,859 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 00:32:04,860 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 00:32:04,860 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 00:32:04,860 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:32:04,860 INFO L87 Difference]: Start difference. First operand 51190 states and 57947 transitions. Second operand 6 states. [2018-07-24 00:32:17,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:32:17,920 INFO L93 Difference]: Finished difference Result 132421 states and 148975 transitions. [2018-07-24 00:32:17,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 00:32:17,921 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 488 [2018-07-24 00:32:17,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:32:18,097 INFO L225 Difference]: With dead ends: 132421 [2018-07-24 00:32:18,098 INFO L226 Difference]: Without dead ends: 81233 [2018-07-24 00:32:18,135 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:32:18,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81233 states. [2018-07-24 00:32:18,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81233 to 64816. [2018-07-24 00:32:18,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64816 states. [2018-07-24 00:32:18,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64816 states to 64816 states and 71624 transitions. [2018-07-24 00:32:18,975 INFO L78 Accepts]: Start accepts. Automaton has 64816 states and 71624 transitions. Word has length 488 [2018-07-24 00:32:18,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:32:18,976 INFO L471 AbstractCegarLoop]: Abstraction has 64816 states and 71624 transitions. [2018-07-24 00:32:18,976 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 00:32:18,976 INFO L276 IsEmpty]: Start isEmpty. Operand 64816 states and 71624 transitions. [2018-07-24 00:32:19,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2018-07-24 00:32:19,004 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:32:19,004 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:32:19,004 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:32:19,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1220149129, now seen corresponding path program 1 times [2018-07-24 00:32:19,005 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:32:19,005 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:32:19,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:19,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:32:19,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:19,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:32:20,009 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2018-07-24 00:32:20,010 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:32:20,010 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:32:20,011 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:32:20,011 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:32:20,011 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:32:20,011 INFO L87 Difference]: Start difference. First operand 64816 states and 71624 transitions. Second operand 3 states. [2018-07-24 00:32:25,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:32:25,343 INFO L93 Difference]: Finished difference Result 130106 states and 143736 transitions. [2018-07-24 00:32:25,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:32:25,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 513 [2018-07-24 00:32:25,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:32:25,432 INFO L225 Difference]: With dead ends: 130106 [2018-07-24 00:32:25,432 INFO L226 Difference]: Without dead ends: 65292 [2018-07-24 00:32:25,472 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 00:32:25,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65292 states. [2018-07-24 00:32:26,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65292 to 63036. [2018-07-24 00:32:26,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63036 states. [2018-07-24 00:32:26,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63036 states to 63036 states and 68073 transitions. [2018-07-24 00:32:26,236 INFO L78 Accepts]: Start accepts. Automaton has 63036 states and 68073 transitions. Word has length 513 [2018-07-24 00:32:26,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:32:26,237 INFO L471 AbstractCegarLoop]: Abstraction has 63036 states and 68073 transitions. [2018-07-24 00:32:26,237 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:32:26,237 INFO L276 IsEmpty]: Start isEmpty. Operand 63036 states and 68073 transitions. [2018-07-24 00:32:26,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2018-07-24 00:32:26,286 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:32:26,287 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 00:32:26,287 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:32:26,288 INFO L82 PathProgramCache]: Analyzing trace with hash -947384610, now seen corresponding path program 1 times [2018-07-24 00:32:26,288 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:32:26,288 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:32:26,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:26,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:32:26,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:32:26,946 WARN L169 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-07-24 00:32:27,612 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 407 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-07-24 00:32:27,613 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:32:27,613 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:32:27,614 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:32:27,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:32:27,614 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:32:27,614 INFO L87 Difference]: Start difference. First operand 63036 states and 68073 transitions. Second operand 4 states. [2018-07-24 00:32:32,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:32:32,900 INFO L93 Difference]: Finished difference Result 126822 states and 136928 transitions. [2018-07-24 00:32:32,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:32:32,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 694 [2018-07-24 00:32:32,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:32:32,971 INFO L225 Difference]: With dead ends: 126822 [2018-07-24 00:32:32,971 INFO L226 Difference]: Without dead ends: 63788 [2018-07-24 00:32:33,007 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:32:33,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63788 states. [2018-07-24 00:32:33,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63788 to 63788. [2018-07-24 00:32:33,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63788 states. [2018-07-24 00:32:33,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63788 states to 63788 states and 68460 transitions. [2018-07-24 00:32:33,592 INFO L78 Accepts]: Start accepts. Automaton has 63788 states and 68460 transitions. Word has length 694 [2018-07-24 00:32:33,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:32:33,593 INFO L471 AbstractCegarLoop]: Abstraction has 63788 states and 68460 transitions. [2018-07-24 00:32:33,593 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:32:33,593 INFO L276 IsEmpty]: Start isEmpty. Operand 63788 states and 68460 transitions. [2018-07-24 00:32:33,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2018-07-24 00:32:33,639 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:32:33,640 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2018-07-24 00:32:33,640 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:32:33,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1463867924, now seen corresponding path program 1 times [2018-07-24 00:32:33,641 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:32:33,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:32:33,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:33,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:32:33,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:32:34,859 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-24 00:32:34,859 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:32:34,860 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:32:34,860 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:32:34,860 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:32:34,861 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:32:34,861 INFO L87 Difference]: Start difference. First operand 63788 states and 68460 transitions. Second operand 4 states. [2018-07-24 00:32:42,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:32:42,200 INFO L93 Difference]: Finished difference Result 135846 states and 146207 transitions. [2018-07-24 00:32:42,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:32:42,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 698 [2018-07-24 00:32:42,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:32:42,272 INFO L225 Difference]: With dead ends: 135846 [2018-07-24 00:32:42,272 INFO L226 Difference]: Without dead ends: 72060 [2018-07-24 00:32:42,306 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:32:42,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72060 states. [2018-07-24 00:32:43,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72060 to 70556. [2018-07-24 00:32:43,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70556 states. [2018-07-24 00:32:43,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70556 states to 70556 states and 74914 transitions. [2018-07-24 00:32:43,404 INFO L78 Accepts]: Start accepts. Automaton has 70556 states and 74914 transitions. Word has length 698 [2018-07-24 00:32:43,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:32:43,405 INFO L471 AbstractCegarLoop]: Abstraction has 70556 states and 74914 transitions. [2018-07-24 00:32:43,405 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:32:43,405 INFO L276 IsEmpty]: Start isEmpty. Operand 70556 states and 74914 transitions. [2018-07-24 00:32:43,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 913 [2018-07-24 00:32:43,446 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:32:43,447 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 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] [2018-07-24 00:32:43,447 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:32:43,447 INFO L82 PathProgramCache]: Analyzing trace with hash 2122588840, now seen corresponding path program 1 times [2018-07-24 00:32:43,447 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:32:43,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:32:43,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:43,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:32:43,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:32:43,993 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 5 [2018-07-24 00:32:44,286 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2018-07-24 00:32:44,286 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:32:44,287 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:32:44,287 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:32:44,288 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:32:44,288 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:32:44,288 INFO L87 Difference]: Start difference. First operand 70556 states and 74914 transitions. Second operand 3 states. [2018-07-24 00:32:50,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:32:50,573 INFO L93 Difference]: Finished difference Result 163540 states and 174172 transitions. [2018-07-24 00:32:50,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:32:50,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 912 [2018-07-24 00:32:50,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:32:50,660 INFO L225 Difference]: With dead ends: 163540 [2018-07-24 00:32:50,660 INFO L226 Difference]: Without dead ends: 92986 [2018-07-24 00:32:50,683 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 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 00:32:50,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92986 states. [2018-07-24 00:32:51,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92986 to 89226. [2018-07-24 00:32:51,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89226 states. [2018-07-24 00:32:51,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89226 states to 89226 states and 94842 transitions. [2018-07-24 00:32:51,403 INFO L78 Accepts]: Start accepts. Automaton has 89226 states and 94842 transitions. Word has length 912 [2018-07-24 00:32:51,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:32:51,404 INFO L471 AbstractCegarLoop]: Abstraction has 89226 states and 94842 transitions. [2018-07-24 00:32:51,404 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:32:51,404 INFO L276 IsEmpty]: Start isEmpty. Operand 89226 states and 94842 transitions. [2018-07-24 00:32:51,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1098 [2018-07-24 00:32:51,464 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:32:51,465 INFO L353 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:32:51,465 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:32:51,465 INFO L82 PathProgramCache]: Analyzing trace with hash 851550928, now seen corresponding path program 1 times [2018-07-24 00:32:51,466 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:32:51,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:32:51,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:51,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:32:51,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:32:53,781 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 417 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2018-07-24 00:32:53,781 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:32:53,781 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:32:53,782 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:32:53,782 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:32:53,783 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:32:53,783 INFO L87 Difference]: Start difference. First operand 89226 states and 94842 transitions. Second operand 4 states. [2018-07-24 00:32:59,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:32:59,810 INFO L93 Difference]: Finished difference Result 178450 states and 189682 transitions. [2018-07-24 00:32:59,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:32:59,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1097 [2018-07-24 00:32:59,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:32:59,898 INFO L225 Difference]: With dead ends: 178450 [2018-07-24 00:32:59,898 INFO L226 Difference]: Without dead ends: 89226 [2018-07-24 00:32:59,942 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 00:32:59,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89226 states. [2018-07-24 00:33:01,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89226 to 88917. [2018-07-24 00:33:01,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88917 states. [2018-07-24 00:33:01,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88917 states to 88917 states and 93220 transitions. [2018-07-24 00:33:01,230 INFO L78 Accepts]: Start accepts. Automaton has 88917 states and 93220 transitions. Word has length 1097 [2018-07-24 00:33:01,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:33:01,231 INFO L471 AbstractCegarLoop]: Abstraction has 88917 states and 93220 transitions. [2018-07-24 00:33:01,231 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:33:01,231 INFO L276 IsEmpty]: Start isEmpty. Operand 88917 states and 93220 transitions. [2018-07-24 00:33:01,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1196 [2018-07-24 00:33:01,289 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:33:01,290 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:33:01,290 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:33:01,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1625104180, now seen corresponding path program 1 times [2018-07-24 00:33:01,291 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:33:01,291 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:33:01,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:33:01,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:33:01,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:33:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:33:02,493 WARN L169 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-24 00:33:02,883 WARN L169 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 20 [2018-07-24 00:33:04,608 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 619 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-07-24 00:33:04,608 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:33:04,608 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 00:33:04,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:33:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:33:05,018 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:33:05,632 WARN L169 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2018-07-24 00:33:06,627 WARN L169 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 31 [2018-07-24 00:33:11,223 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 568 proven. 55 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-07-24 00:33:11,245 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 00:33:11,245 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 10 [2018-07-24 00:33:11,247 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 00:33:11,247 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 00:33:11,247 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-07-24 00:33:11,247 INFO L87 Difference]: Start difference. First operand 88917 states and 93220 transitions. Second operand 11 states. [2018-07-24 00:33:41,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:33:41,774 INFO L93 Difference]: Finished difference Result 226969 states and 238262 transitions. [2018-07-24 00:33:41,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-24 00:33:41,775 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1195 [2018-07-24 00:33:41,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:33:41,910 INFO L225 Difference]: With dead ends: 226969 [2018-07-24 00:33:41,910 INFO L226 Difference]: Without dead ends: 135039 [2018-07-24 00:33:41,957 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1209 GetRequests, 1192 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=111, Invalid=195, Unknown=0, NotChecked=0, Total=306 [2018-07-24 00:33:42,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135039 states. [2018-07-24 00:33:43,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135039 to 127519. [2018-07-24 00:33:43,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127519 states. [2018-07-24 00:33:43,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127519 states to 127519 states and 132799 transitions. [2018-07-24 00:33:43,243 INFO L78 Accepts]: Start accepts. Automaton has 127519 states and 132799 transitions. Word has length 1195 [2018-07-24 00:33:43,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:33:43,244 INFO L471 AbstractCegarLoop]: Abstraction has 127519 states and 132799 transitions. [2018-07-24 00:33:43,244 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 00:33:43,244 INFO L276 IsEmpty]: Start isEmpty. Operand 127519 states and 132799 transitions. [2018-07-24 00:33:43,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1249 [2018-07-24 00:33:43,307 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:33:43,308 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:43,308 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:33:43,309 INFO L82 PathProgramCache]: Analyzing trace with hash 929663273, now seen corresponding path program 1 times [2018-07-24 00:33:43,309 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:33:43,309 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:33:43,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:33:43,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:33:43,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:33:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:33:44,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1173 backedges. 901 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2018-07-24 00:33:44,881 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:33:44,881 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:33:44,882 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:33:44,882 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:33:44,882 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:33:44,882 INFO L87 Difference]: Start difference. First operand 127519 states and 132799 transitions. Second operand 4 states. [2018-07-24 00:33:52,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:33:52,884 INFO L93 Difference]: Finished difference Result 255036 states and 265596 transitions. [2018-07-24 00:33:52,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:33:52,885 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1248 [2018-07-24 00:33:52,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:33:53,004 INFO L225 Difference]: With dead ends: 255036 [2018-07-24 00:33:53,005 INFO L226 Difference]: Without dead ends: 109806 [2018-07-24 00:33:53,067 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 4 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 00:33:53,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109806 states. [2018-07-24 00:33:54,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109806 to 98526. [2018-07-24 00:33:54,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98526 states. [2018-07-24 00:33:54,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98526 states to 98526 states and 101156 transitions. [2018-07-24 00:33:54,480 INFO L78 Accepts]: Start accepts. Automaton has 98526 states and 101156 transitions. Word has length 1248 [2018-07-24 00:33:54,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:33:54,481 INFO L471 AbstractCegarLoop]: Abstraction has 98526 states and 101156 transitions. [2018-07-24 00:33:54,481 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:33:54,481 INFO L276 IsEmpty]: Start isEmpty. Operand 98526 states and 101156 transitions. [2018-07-24 00:33:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1250 [2018-07-24 00:33:54,537 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:33:54,538 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:54,538 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:33:54,539 INFO L82 PathProgramCache]: Analyzing trace with hash 465198219, now seen corresponding path program 1 times [2018-07-24 00:33:54,539 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:33:54,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:33:54,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:33:54,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:33:54,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:33:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:33:56,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 747 proven. 343 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-07-24 00:33:56,628 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:33:56,628 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:33:56,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:33:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:33:57,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:33:58,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 585 proven. 0 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2018-07-24 00:33:58,355 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:33:58,355 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2018-07-24 00:33:58,357 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 00:33:58,357 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 00:33:58,358 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-07-24 00:33:58,358 INFO L87 Difference]: Start difference. First operand 98526 states and 101156 transitions. Second operand 9 states. Received shutdown request... [2018-07-24 00:34:20,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 00:34:20,134 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 00:34:20,141 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 00:34:20,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:34:20 BoogieIcfgContainer [2018-07-24 00:34:20,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 00:34:20,142 INFO L168 Benchmark]: Toolchain (without parser) took 232247.85 ms. Allocated memory was 1.6 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -821.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-07-24 00:34:20,143 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 00:34:20,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2445.53 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-07-24 00:34:20,145 INFO L168 Benchmark]: Boogie Procedure Inliner took 420.78 ms. Allocated memory is still 1.6 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 75.0 MB). Peak memory consumption was 75.0 MB. Max. memory is 7.1 GB. [2018-07-24 00:34:20,145 INFO L168 Benchmark]: Boogie Preprocessor took 1116.30 ms. Allocated memory was 1.6 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 169.6 MB. Max. memory is 7.1 GB. [2018-07-24 00:34:20,151 INFO L168 Benchmark]: RCFGBuilder took 8757.22 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 134.7 MB). Free memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: -86.8 MB). Peak memory consumption was 764.7 MB. Max. memory is 7.1 GB. [2018-07-24 00:34:20,151 INFO L168 Benchmark]: TraceAbstraction took 219502.35 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.5 GB in the beginning and 2.2 GB in the end (delta: 254.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-07-24 00:34:20,162 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2445.53 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 420.78 ms. Allocated memory is still 1.6 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 75.0 MB). Peak memory consumption was 75.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1116.30 ms. Allocated memory was 1.6 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 169.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8757.22 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 134.7 MB). Free memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: -86.8 MB). Peak memory consumption was 764.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219502.35 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.5 GB in the beginning and 2.2 GB in the end (delta: 254.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 63). Cancelled while BasicCegarLoop was constructing difference of abstraction (98526states) and interpolant automaton (currently 15 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (99590 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 219.4s OverallTime, 14 OverallIterations, 6 TraceHistogramMax, 181.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8689 SDtfs, 50768 SDslu, 1660 SDs, 0 SdLazy, 97371 SolverSat, 16121 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 146.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3066 GetRequests, 2980 SyntacticMatches, 15 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127519occurred in iteration=12, 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, 13 MinimizatonAttempts, 69394 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 16.3s InterpolantComputationTime, 11756 NumberOfCodeBlocks, 11756 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 11738 ConstructedInterpolants, 310 QuantifiedInterpolants, 44157366 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3476 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 18 InterpolantComputations, 13 PerfectInterpolantSequences, 8891/9306 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/Problem12_label25_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_00-34-20-184.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label25_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_00-34-20-184.csv Completed graceful shutdown