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_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 02:38:41,793 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 02:38:41,795 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 02:38:41,808 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 02:38:41,808 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 02:38:41,810 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 02:38:41,812 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 02:38:41,814 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 02:38:41,815 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 02:38:41,816 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 02:38:41,817 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 02:38:41,818 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 02:38:41,819 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 02:38:41,819 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 02:38:41,823 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 02:38:41,824 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 02:38:41,825 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 02:38:41,827 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 02:38:41,829 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 02:38:41,830 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 02:38:41,831 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 02:38:41,833 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 02:38:41,835 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-24 02:38:41,843 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 02:38:41,843 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 02:38:41,844 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 02:38:41,845 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 02:38:41,845 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-24 02:38:41,861 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 02:38:41,861 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 02:38:41,862 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 02:38:41,862 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 02:38:41,863 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 02:38:41,863 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 02:38:41,863 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 02:38:41,864 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 02:38:41,864 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 02:38:41,864 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 02:38:41,864 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 02:38:41,864 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 02:38:41,865 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 02:38:41,865 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 02:38:41,865 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 02:38:41,865 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 02:38:41,866 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 02:38:41,866 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 02:38:41,866 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 02:38:41,866 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 02:38:41,866 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 02:38:41,867 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 02:38:41,867 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 02:38:41,867 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 02:38:41,867 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 02:38:41,867 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 02:38:41,868 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 02:38:41,868 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 02:38:41,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 02:38:41,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 02:38:41,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 02:38:41,952 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 02:38:41,952 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 02:38:41,953 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label05_true-unreach-call.c [2018-07-24 02:38:42,322 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40db09030/a46297eb3f824596b165c7cda6585fce/FLAGd3ff44335 [2018-07-24 02:38:42,756 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 02:38:42,757 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label05_true-unreach-call.c [2018-07-24 02:38:42,791 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40db09030/a46297eb3f824596b165c7cda6585fce/FLAGd3ff44335 [2018-07-24 02:38:42,811 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40db09030/a46297eb3f824596b165c7cda6585fce [2018-07-24 02:38:42,824 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 02:38:42,825 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 02:38:42,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 02:38:42,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 02:38:42,837 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 02:38:42,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:38:42" (1/1) ... [2018-07-24 02:38:42,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4f1318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:42, skipping insertion in model container [2018-07-24 02:38:42,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:38:42" (1/1) ... [2018-07-24 02:38:43,193 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 02:38:44,254 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 02:38:44,270 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 02:38:44,892 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 02:38:45,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:45 WrapperNode [2018-07-24 02:38:45,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 02:38:45,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 02:38:45,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 02:38:45,165 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 02:38:45,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:45" (1/1) ... [2018-07-24 02:38:45,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:45" (1/1) ... [2018-07-24 02:38:45,573 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 02:38:45,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 02:38:45,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 02:38:45,574 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 02:38:46,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:45" (1/1) ... [2018-07-24 02:38:46,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:45" (1/1) ... [2018-07-24 02:38:46,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:45" (1/1) ... [2018-07-24 02:38:46,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:45" (1/1) ... [2018-07-24 02:38:46,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:45" (1/1) ... [2018-07-24 02:38:46,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:45" (1/1) ... [2018-07-24 02:38:46,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:45" (1/1) ... [2018-07-24 02:38:46,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 02:38:46,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 02:38:46,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 02:38:46,672 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 02:38:46,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 02:38:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 02:38:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 02:38:46,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 02:38:59,562 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 02:38:59,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:38:59 BoogieIcfgContainer [2018-07-24 02:38:59,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 02:38:59,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 02:38:59,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 02:38:59,568 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 02:38:59,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:38:42" (1/3) ... [2018-07-24 02:38:59,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488362da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:38:59, skipping insertion in model container [2018-07-24 02:38:59,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:38:45" (2/3) ... [2018-07-24 02:38:59,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488362da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:38:59, skipping insertion in model container [2018-07-24 02:38:59,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:38:59" (3/3) ... [2018-07-24 02:38:59,571 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label05_true-unreach-call.c [2018-07-24 02:38:59,581 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 02:38:59,595 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 02:38:59,654 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 02:38:59,655 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 02:38:59,655 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 02:38:59,655 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 02:38:59,656 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 02:38:59,656 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 02:38:59,656 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 02:38:59,656 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 02:38:59,656 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 02:38:59,691 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-07-24 02:38:59,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-07-24 02:38:59,700 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:38:59,702 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:38:59,702 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:38:59,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1074201598, now seen corresponding path program 1 times [2018-07-24 02:38:59,709 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:38:59,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:38:59,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:38:59,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:38:59,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:38:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:39:00,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:39:00,214 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:39:00,215 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:39:00,220 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:39:00,236 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:39:00,237 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:39:00,240 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-07-24 02:39:12,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:39:12,202 INFO L93 Difference]: Finished difference Result 3162 states and 6150 transitions. [2018-07-24 02:39:12,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:39:12,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2018-07-24 02:39:12,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:39:12,247 INFO L225 Difference]: With dead ends: 3162 [2018-07-24 02:39:12,247 INFO L226 Difference]: Without dead ends: 2336 [2018-07-24 02:39:12,255 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:39:12,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2018-07-24 02:39:12,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2018-07-24 02:39:12,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2336 states. [2018-07-24 02:39:12,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3769 transitions. [2018-07-24 02:39:12,414 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3769 transitions. Word has length 60 [2018-07-24 02:39:12,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:39:12,415 INFO L471 AbstractCegarLoop]: Abstraction has 2336 states and 3769 transitions. [2018-07-24 02:39:12,415 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:39:12,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3769 transitions. [2018-07-24 02:39:12,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-24 02:39:12,422 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:39:12,422 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 02:39:12,422 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:39:12,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1727855073, now seen corresponding path program 1 times [2018-07-24 02:39:12,423 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:39:12,423 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:39:12,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:39:12,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:39:12,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:39:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:39:12,976 WARN L169 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 19 [2018-07-24 02:39:13,420 WARN L169 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 20 [2018-07-24 02:39:13,508 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:39:13,508 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:39:13,509 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 02:39:13,511 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 02:39:13,512 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 02:39:13,512 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-24 02:39:13,512 INFO L87 Difference]: Start difference. First operand 2336 states and 3769 transitions. Second operand 6 states. [2018-07-24 02:39:36,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:39:36,977 INFO L93 Difference]: Finished difference Result 9183 states and 14416 transitions. [2018-07-24 02:39:36,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 02:39:36,978 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-07-24 02:39:36,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:39:37,015 INFO L225 Difference]: With dead ends: 9183 [2018-07-24 02:39:37,015 INFO L226 Difference]: Without dead ends: 6849 [2018-07-24 02:39:37,022 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-07-24 02:39:37,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6849 states. [2018-07-24 02:39:37,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6849 to 6849. [2018-07-24 02:39:37,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6849 states. [2018-07-24 02:39:37,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6849 states to 6849 states and 9754 transitions. [2018-07-24 02:39:37,164 INFO L78 Accepts]: Start accepts. Automaton has 6849 states and 9754 transitions. Word has length 137 [2018-07-24 02:39:37,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:39:37,164 INFO L471 AbstractCegarLoop]: Abstraction has 6849 states and 9754 transitions. [2018-07-24 02:39:37,164 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 02:39:37,165 INFO L276 IsEmpty]: Start isEmpty. Operand 6849 states and 9754 transitions. [2018-07-24 02:39:37,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-07-24 02:39:37,179 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:39:37,180 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:39:37,181 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:39:37,181 INFO L82 PathProgramCache]: Analyzing trace with hash -869350393, now seen corresponding path program 1 times [2018-07-24 02:39:37,181 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:39:37,181 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:39:37,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:39:37,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:39:37,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:39:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:39:37,947 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 20 [2018-07-24 02:39:38,067 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 158 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-07-24 02:39:38,068 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:39:38,068 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 02:39:38,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:39:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:39:38,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:39:38,421 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:39:38,454 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:39:38,454 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-07-24 02:39:38,455 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 02:39:38,455 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 02:39:38,456 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-07-24 02:39:38,456 INFO L87 Difference]: Start difference. First operand 6849 states and 9754 transitions. Second operand 7 states. [2018-07-24 02:40:01,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:40:01,475 INFO L93 Difference]: Finished difference Result 28768 states and 40519 transitions. [2018-07-24 02:40:01,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 02:40:01,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2018-07-24 02:40:01,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:40:01,559 INFO L225 Difference]: With dead ends: 28768 [2018-07-24 02:40:01,559 INFO L226 Difference]: Without dead ends: 18909 [2018-07-24 02:40:01,572 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-07-24 02:40:01,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18909 states. [2018-07-24 02:40:01,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18909 to 14367. [2018-07-24 02:40:01,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14367 states. [2018-07-24 02:40:01,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14367 states to 14367 states and 17896 transitions. [2018-07-24 02:40:01,871 INFO L78 Accepts]: Start accepts. Automaton has 14367 states and 17896 transitions. Word has length 239 [2018-07-24 02:40:01,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:40:01,872 INFO L471 AbstractCegarLoop]: Abstraction has 14367 states and 17896 transitions. [2018-07-24 02:40:01,872 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 02:40:01,872 INFO L276 IsEmpty]: Start isEmpty. Operand 14367 states and 17896 transitions. [2018-07-24 02:40:01,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-07-24 02:40:01,878 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:40:01,878 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:40:01,878 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:40:01,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1321376543, now seen corresponding path program 1 times [2018-07-24 02:40:01,879 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:40:01,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:40:01,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:01,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:40:01,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:40:02,330 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:40:02,331 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:40:02,331 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:40:02,332 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:40:02,332 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:40:02,332 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:40:02,334 INFO L87 Difference]: Start difference. First operand 14367 states and 17896 transitions. Second operand 4 states. [2018-07-24 02:40:12,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:40:12,479 INFO L93 Difference]: Finished difference Result 49788 states and 63216 transitions. [2018-07-24 02:40:12,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:40:12,480 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 294 [2018-07-24 02:40:12,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:40:12,544 INFO L225 Difference]: With dead ends: 49788 [2018-07-24 02:40:12,544 INFO L226 Difference]: Without dead ends: 35423 [2018-07-24 02:40:12,563 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:40:12,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35423 states. [2018-07-24 02:40:12,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35423 to 35423. [2018-07-24 02:40:12,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35423 states. [2018-07-24 02:40:13,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35423 states to 35423 states and 43956 transitions. [2018-07-24 02:40:13,031 INFO L78 Accepts]: Start accepts. Automaton has 35423 states and 43956 transitions. Word has length 294 [2018-07-24 02:40:13,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:40:13,032 INFO L471 AbstractCegarLoop]: Abstraction has 35423 states and 43956 transitions. [2018-07-24 02:40:13,032 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:40:13,032 INFO L276 IsEmpty]: Start isEmpty. Operand 35423 states and 43956 transitions. [2018-07-24 02:40:13,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-07-24 02:40:13,041 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:40:13,042 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:40:13,042 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:40:13,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1396358384, now seen corresponding path program 1 times [2018-07-24 02:40:13,042 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:40:13,042 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:40:13,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:13,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:40:13,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:40:13,563 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 115 proven. 80 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-07-24 02:40:13,563 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:40:13,563 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 02:40:13,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:40:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:40:13,707 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:40:13,902 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-07-24 02:40:13,941 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:40:13,941 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-07-24 02:40:13,942 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:40:13,943 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:40:13,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:40:13,943 INFO L87 Difference]: Start difference. First operand 35423 states and 43956 transitions. Second operand 5 states. [2018-07-24 02:40:27,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:40:27,108 INFO L93 Difference]: Finished difference Result 140028 states and 174957 transitions. [2018-07-24 02:40:27,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 02:40:27,109 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 300 [2018-07-24 02:40:27,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:40:27,275 INFO L225 Difference]: With dead ends: 140028 [2018-07-24 02:40:27,275 INFO L226 Difference]: Without dead ends: 104607 [2018-07-24 02:40:27,330 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:40:27,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104607 states. [2018-07-24 02:40:28,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104607 to 96320. [2018-07-24 02:40:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96320 states. [2018-07-24 02:40:28,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96320 states to 96320 states and 109781 transitions. [2018-07-24 02:40:28,938 INFO L78 Accepts]: Start accepts. Automaton has 96320 states and 109781 transitions. Word has length 300 [2018-07-24 02:40:28,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:40:28,939 INFO L471 AbstractCegarLoop]: Abstraction has 96320 states and 109781 transitions. [2018-07-24 02:40:28,939 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 02:40:28,939 INFO L276 IsEmpty]: Start isEmpty. Operand 96320 states and 109781 transitions. [2018-07-24 02:40:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2018-07-24 02:40:28,952 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:40:28,952 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:40:28,952 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:40:28,953 INFO L82 PathProgramCache]: Analyzing trace with hash 819581547, now seen corresponding path program 1 times [2018-07-24 02:40:28,953 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:40:28,953 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:40:28,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:28,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:40:28,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:40:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-07-24 02:40:29,376 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:40:29,377 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:40:29,377 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 02:40:29,377 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 02:40:29,378 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:40:29,378 INFO L87 Difference]: Start difference. First operand 96320 states and 109781 transitions. Second operand 3 states. [2018-07-24 02:40:37,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:40:37,132 INFO L93 Difference]: Finished difference Result 192638 states and 219560 transitions. [2018-07-24 02:40:37,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 02:40:37,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 339 [2018-07-24 02:40:37,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:40:37,318 INFO L225 Difference]: With dead ends: 192638 [2018-07-24 02:40:37,319 INFO L226 Difference]: Without dead ends: 96320 [2018-07-24 02:40:37,385 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:40:37,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96320 states. [2018-07-24 02:40:39,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96320 to 96320. [2018-07-24 02:40:39,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96320 states. [2018-07-24 02:40:39,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96320 states to 96320 states and 108470 transitions. [2018-07-24 02:40:39,252 INFO L78 Accepts]: Start accepts. Automaton has 96320 states and 108470 transitions. Word has length 339 [2018-07-24 02:40:39,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:40:39,253 INFO L471 AbstractCegarLoop]: Abstraction has 96320 states and 108470 transitions. [2018-07-24 02:40:39,253 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 02:40:39,253 INFO L276 IsEmpty]: Start isEmpty. Operand 96320 states and 108470 transitions. [2018-07-24 02:40:39,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2018-07-24 02:40:39,271 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:40:39,272 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:40:39,272 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:40:39,273 INFO L82 PathProgramCache]: Analyzing trace with hash 709012515, now seen corresponding path program 1 times [2018-07-24 02:40:39,273 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:40:39,273 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:40:39,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:39,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:40:39,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:40:39,787 WARN L169 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-07-24 02:40:39,845 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-07-24 02:40:39,845 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:40:39,845 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:40:39,846 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:40:39,846 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:40:39,846 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:40:39,847 INFO L87 Difference]: Start difference. First operand 96320 states and 108470 transitions. Second operand 4 states. [2018-07-24 02:40:50,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:40:50,022 INFO L93 Difference]: Finished difference Result 192638 states and 216938 transitions. [2018-07-24 02:40:50,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 02:40:50,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 396 [2018-07-24 02:40:50,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:40:50,117 INFO L225 Difference]: With dead ends: 192638 [2018-07-24 02:40:50,117 INFO L226 Difference]: Without dead ends: 96320 [2018-07-24 02:40:50,175 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 02:40:50,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96320 states. [2018-07-24 02:40:51,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96320 to 96320. [2018-07-24 02:40:51,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96320 states. [2018-07-24 02:40:52,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96320 states to 96320 states and 107158 transitions. [2018-07-24 02:40:52,063 INFO L78 Accepts]: Start accepts. Automaton has 96320 states and 107158 transitions. Word has length 396 [2018-07-24 02:40:52,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:40:52,064 INFO L471 AbstractCegarLoop]: Abstraction has 96320 states and 107158 transitions. [2018-07-24 02:40:52,064 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:40:52,064 INFO L276 IsEmpty]: Start isEmpty. Operand 96320 states and 107158 transitions. [2018-07-24 02:40:52,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2018-07-24 02:40:52,080 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:40:52,081 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:40:52,081 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:40:52,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1237382604, now seen corresponding path program 1 times [2018-07-24 02:40:52,082 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:40:52,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:40:52,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:52,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:40:52,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:40:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:40:52,582 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-07-24 02:40:52,583 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:40:52,583 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:40:52,583 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:40:52,584 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:40:52,584 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:40:52,584 INFO L87 Difference]: Start difference. First operand 96320 states and 107158 transitions. Second operand 4 states. [2018-07-24 02:41:03,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:41:03,733 INFO L93 Difference]: Finished difference Result 207678 states and 232029 transitions. [2018-07-24 02:41:03,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:41:03,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 402 [2018-07-24 02:41:03,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:41:03,889 INFO L225 Difference]: With dead ends: 207678 [2018-07-24 02:41:03,890 INFO L226 Difference]: Without dead ends: 111360 [2018-07-24 02:41:03,944 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 02:41:04,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111360 states. [2018-07-24 02:41:04,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111360 to 111360. [2018-07-24 02:41:04,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111360 states. [2018-07-24 02:41:04,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111360 states to 111360 states and 121502 transitions. [2018-07-24 02:41:04,808 INFO L78 Accepts]: Start accepts. Automaton has 111360 states and 121502 transitions. Word has length 402 [2018-07-24 02:41:04,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:41:04,809 INFO L471 AbstractCegarLoop]: Abstraction has 111360 states and 121502 transitions. [2018-07-24 02:41:04,809 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:41:04,809 INFO L276 IsEmpty]: Start isEmpty. Operand 111360 states and 121502 transitions. [2018-07-24 02:41:04,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2018-07-24 02:41:04,819 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:41:04,820 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:41:04,820 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:41:04,820 INFO L82 PathProgramCache]: Analyzing trace with hash 2056982082, now seen corresponding path program 1 times [2018-07-24 02:41:04,820 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:41:04,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:41:04,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:04,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:41:04,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:41:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 310 proven. 58 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-24 02:41:05,212 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:41:05,212 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 02:41:05,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:41:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:41:05,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:41:05,555 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 310 proven. 58 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-24 02:41:05,576 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 02:41:05,576 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2018-07-24 02:41:05,577 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 02:41:05,577 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 02:41:05,577 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 02:41:05,578 INFO L87 Difference]: Start difference. First operand 111360 states and 121502 transitions. Second operand 6 states. [2018-07-24 02:41:30,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:41:30,469 INFO L93 Difference]: Finished difference Result 258075 states and 280417 transitions. [2018-07-24 02:41:30,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 02:41:30,469 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 422 [2018-07-24 02:41:30,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:41:30,638 INFO L225 Difference]: With dead ends: 258075 [2018-07-24 02:41:30,638 INFO L226 Difference]: Without dead ends: 146717 [2018-07-24 02:41:30,697 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 423 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-07-24 02:41:30,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146717 states. [2018-07-24 02:41:31,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146717 to 116624. [2018-07-24 02:41:31,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116624 states. [2018-07-24 02:41:31,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116624 states to 116624 states and 126655 transitions. [2018-07-24 02:41:31,813 INFO L78 Accepts]: Start accepts. Automaton has 116624 states and 126655 transitions. Word has length 422 [2018-07-24 02:41:31,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:41:31,813 INFO L471 AbstractCegarLoop]: Abstraction has 116624 states and 126655 transitions. [2018-07-24 02:41:31,814 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 02:41:31,814 INFO L276 IsEmpty]: Start isEmpty. Operand 116624 states and 126655 transitions. [2018-07-24 02:41:31,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2018-07-24 02:41:31,826 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:41:31,826 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 02:41:31,826 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:41:31,827 INFO L82 PathProgramCache]: Analyzing trace with hash 34435528, now seen corresponding path program 1 times [2018-07-24 02:41:31,827 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:41:31,827 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:41:31,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:31,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:41:31,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:41:32,184 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-07-24 02:41:32,184 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:41:32,185 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:41:32,185 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:41:32,185 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:41:32,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:41:32,186 INFO L87 Difference]: Start difference. First operand 116624 states and 126655 transitions. Second operand 4 states. [2018-07-24 02:41:41,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:41:41,276 INFO L93 Difference]: Finished difference Result 277614 states and 300842 transitions. [2018-07-24 02:41:41,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:41:41,277 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 448 [2018-07-24 02:41:41,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:41:41,442 INFO L225 Difference]: With dead ends: 277614 [2018-07-24 02:41:41,442 INFO L226 Difference]: Without dead ends: 154215 [2018-07-24 02:41:41,505 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:41:41,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154215 states. [2018-07-24 02:41:43,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154215 to 150455. [2018-07-24 02:41:43,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150455 states. [2018-07-24 02:41:43,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150455 states to 150455 states and 157877 transitions. [2018-07-24 02:41:43,763 INFO L78 Accepts]: Start accepts. Automaton has 150455 states and 157877 transitions. Word has length 448 [2018-07-24 02:41:43,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:41:43,764 INFO L471 AbstractCegarLoop]: Abstraction has 150455 states and 157877 transitions. [2018-07-24 02:41:43,764 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:41:43,764 INFO L276 IsEmpty]: Start isEmpty. Operand 150455 states and 157877 transitions. [2018-07-24 02:41:43,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2018-07-24 02:41:43,774 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:41:43,774 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:41:43,774 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:41:43,775 INFO L82 PathProgramCache]: Analyzing trace with hash -322583633, now seen corresponding path program 1 times [2018-07-24 02:41:43,776 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:41:43,776 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:41:43,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:43,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:41:43,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:41:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:41:44,223 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-24 02:41:44,472 WARN L169 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 19 [2018-07-24 02:41:44,816 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 450 proven. 4 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-07-24 02:41:44,817 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:41:44,817 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 02:41:44,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:41:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:41:44,965 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:41:45,442 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-24 02:41:46,765 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 399 proven. 55 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-07-24 02:41:46,798 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 02:41:46,798 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 10 [2018-07-24 02:41:46,800 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 02:41:46,800 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 02:41:46,800 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-07-24 02:41:46,801 INFO L87 Difference]: Start difference. First operand 150455 states and 157877 transitions. Second operand 11 states. [2018-07-24 02:42:18,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:42:18,791 INFO L93 Difference]: Finished difference Result 300908 states and 315754 transitions. [2018-07-24 02:42:18,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-24 02:42:18,792 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 449 [2018-07-24 02:42:18,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:42:18,961 INFO L225 Difference]: With dead ends: 300908 [2018-07-24 02:42:18,962 INFO L226 Difference]: Without dead ends: 137649 [2018-07-24 02:42:19,015 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 446 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2018-07-24 02:42:19,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137649 states. [2018-07-24 02:42:20,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137649 to 130129. [2018-07-24 02:42:20,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130129 states. [2018-07-24 02:42:20,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130129 states to 130129 states and 135925 transitions. [2018-07-24 02:42:20,513 INFO L78 Accepts]: Start accepts. Automaton has 130129 states and 135925 transitions. Word has length 449 [2018-07-24 02:42:20,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:42:20,513 INFO L471 AbstractCegarLoop]: Abstraction has 130129 states and 135925 transitions. [2018-07-24 02:42:20,514 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 02:42:20,514 INFO L276 IsEmpty]: Start isEmpty. Operand 130129 states and 135925 transitions. [2018-07-24 02:42:20,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2018-07-24 02:42:20,523 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:42:20,523 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:42:20,523 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:42:20,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1536536087, now seen corresponding path program 1 times [2018-07-24 02:42:20,524 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:42:20,524 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:42:20,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:42:20,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:42:20,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:42:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:42:20,981 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 601 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-07-24 02:42:20,981 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:42:20,982 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:42:20,982 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 02:42:20,982 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 02:42:20,983 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:42:20,983 INFO L87 Difference]: Start difference. First operand 130129 states and 135925 transitions. Second operand 3 states. [2018-07-24 02:42:30,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:42:30,070 INFO L93 Difference]: Finished difference Result 280560 states and 293161 transitions. [2018-07-24 02:42:30,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 02:42:30,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 491 [2018-07-24 02:42:30,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:42:30,224 INFO L225 Difference]: With dead ends: 280560 [2018-07-24 02:42:30,224 INFO L226 Difference]: Without dead ends: 151185 [2018-07-24 02:42:30,268 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:42:30,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151185 states. [2018-07-24 02:42:31,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151185 to 145169. [2018-07-24 02:42:31,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145169 states. [2018-07-24 02:42:31,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145169 states to 145169 states and 151156 transitions. [2018-07-24 02:42:31,479 INFO L78 Accepts]: Start accepts. Automaton has 145169 states and 151156 transitions. Word has length 491 [2018-07-24 02:42:31,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:42:31,479 INFO L471 AbstractCegarLoop]: Abstraction has 145169 states and 151156 transitions. [2018-07-24 02:42:31,479 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 02:42:31,479 INFO L276 IsEmpty]: Start isEmpty. Operand 145169 states and 151156 transitions. [2018-07-24 02:42:31,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2018-07-24 02:42:31,488 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:42:31,488 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:42:31,488 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:42:31,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1700244961, now seen corresponding path program 1 times [2018-07-24 02:42:31,489 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:42:31,489 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:42:31,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:42:31,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:42:31,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:42:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:42:32,483 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2018-07-24 02:42:32,483 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:42:32,484 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:42:32,484 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:42:32,484 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:42:32,485 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:42:32,485 INFO L87 Difference]: Start difference. First operand 145169 states and 151156 transitions. Second operand 5 states. Received shutdown request... [2018-07-24 02:42:35,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 02:42:35,060 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 02:42:35,065 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 02:42:35,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:42:35 BoogieIcfgContainer [2018-07-24 02:42:35,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 02:42:35,067 INFO L168 Benchmark]: Toolchain (without parser) took 232242.25 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 2.9 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-07-24 02:42:35,068 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 02:42:35,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2337.22 ms. Allocated memory is still 1.5 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 02:42:35,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 408.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-07-24 02:42:35,070 INFO L168 Benchmark]: Boogie Preprocessor took 1098.07 ms. Allocated memory was 1.5 GB in the beginning and 2.5 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 02:42:35,071 INFO L168 Benchmark]: RCFGBuilder took 12891.42 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 140.5 MB). Free memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: -109.2 MB). Peak memory consumption was 774.8 MB. Max. memory is 7.1 GB. [2018-07-24 02:42:35,072 INFO L168 Benchmark]: TraceAbstraction took 215501.53 ms. Allocated memory was 2.7 GB in the beginning and 4.5 GB in the end (delta: 1.8 GB). Free memory was 2.5 GB in the beginning and 2.9 GB in the end (delta: -452.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-07-24 02:42:35,077 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2337.22 ms. Allocated memory is still 1.5 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 408.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1098.07 ms. Allocated memory was 1.5 GB in the beginning and 2.5 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 12891.42 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 140.5 MB). Free memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: -109.2 MB). Peak memory consumption was 774.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215501.53 ms. Allocated memory was 2.7 GB in the beginning and 4.5 GB in the end (delta: 1.8 GB). Free memory was 2.5 GB in the beginning and 2.9 GB in the end (delta: -452.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 189]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 189). Cancelled while BasicCegarLoop was constructing difference of abstraction (145169states) and interpolant automaton (currently 5 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (14281 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 215.4s OverallTime, 13 OverallIterations, 5 TraceHistogramMax, 190.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7277 SDtfs, 37403 SDslu, 1550 SDs, 0 SdLazy, 86592 SolverSat, 13150 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 157.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1486 GetRequests, 1424 SyntacticMatches, 11 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150455occurred in iteration=10, 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: 13.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 60218 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 5884 NumberOfCodeBlocks, 5884 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 5867 ConstructedInterpolants, 0 QuantifiedInterpolants, 7287015 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1822 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 5772/6032 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_label05_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_02-42-35-093.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label05_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_02-42-35-093.csv Completed graceful shutdown