/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 19:01:01,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 19:01:01,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 19:01:01,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-06 19:01:02,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 19:01:02,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 19:01:02,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 19:01:02,021 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 19:01:02,035 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 19:01:02,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 19:01:02,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 19:01:02,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 19:01:02,037 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 19:01:02,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 19:01:02,038 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 19:01:02,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 19:01:02,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 19:01:02,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 19:01:02,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 19:01:02,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 19:01:02,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 19:01:02,039 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 19:01:02,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 19:01:02,040 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 19:01:02,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 19:01:02,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 19:01:02,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 19:01:02,040 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 19:01:02,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 19:01:02,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 19:01:02,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 19:01:02,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 19:01:02,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 19:01:02,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 19:01:02,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 19:01:02,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 19:01:02,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 19:01:02,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 19:01:02,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 19:01:02,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 19:01:02,340 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 19:01:02,340 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 19:01:02,341 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label40.c [2019-11-06 19:01:02,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7b3a3320/84187b10600847d1a124b71843b88169/FLAG786ab0790 [2019-11-06 19:01:02,976 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 19:01:02,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label40.c [2019-11-06 19:01:02,997 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7b3a3320/84187b10600847d1a124b71843b88169/FLAG786ab0790 [2019-11-06 19:01:03,227 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7b3a3320/84187b10600847d1a124b71843b88169 [2019-11-06 19:01:03,238 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 19:01:03,240 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 19:01:03,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 19:01:03,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 19:01:03,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 19:01:03,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:01:03" (1/1) ... [2019-11-06 19:01:03,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@adc654d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:03, skipping insertion in model container [2019-11-06 19:01:03,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:01:03" (1/1) ... [2019-11-06 19:01:03,256 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 19:01:03,344 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 19:01:04,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 19:01:04,216 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 19:01:04,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 19:01:04,688 INFO L192 MainTranslator]: Completed translation [2019-11-06 19:01:04,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:04 WrapperNode [2019-11-06 19:01:04,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 19:01:04,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 19:01:04,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 19:01:04,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 19:01:04,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:04" (1/1) ... [2019-11-06 19:01:04,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:04" (1/1) ... [2019-11-06 19:01:04,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:04" (1/1) ... [2019-11-06 19:01:04,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:04" (1/1) ... [2019-11-06 19:01:04,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:04" (1/1) ... [2019-11-06 19:01:04,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:04" (1/1) ... [2019-11-06 19:01:04,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:04" (1/1) ... [2019-11-06 19:01:04,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 19:01:04,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 19:01:04,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 19:01:04,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 19:01:04,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 19:01:04,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 19:01:04,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 19:01:04,941 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-06 19:01:04,941 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 19:01:04,941 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-06 19:01:04,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 19:01:04,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 19:01:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 19:01:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 19:01:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 19:01:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 19:01:06,869 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 19:01:06,869 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-06 19:01:06,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:01:06 BoogieIcfgContainer [2019-11-06 19:01:06,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 19:01:06,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 19:01:06,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 19:01:06,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 19:01:06,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:01:03" (1/3) ... [2019-11-06 19:01:06,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26acf9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:01:06, skipping insertion in model container [2019-11-06 19:01:06,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:04" (2/3) ... [2019-11-06 19:01:06,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26acf9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:01:06, skipping insertion in model container [2019-11-06 19:01:06,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:01:06" (3/3) ... [2019-11-06 19:01:06,884 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label40.c [2019-11-06 19:01:06,894 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 19:01:06,905 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 19:01:06,922 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 19:01:06,958 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 19:01:06,959 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 19:01:06,959 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 19:01:06,959 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 19:01:06,959 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 19:01:06,960 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 19:01:06,960 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 19:01:06,960 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 19:01:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2019-11-06 19:01:07,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-11-06 19:01:07,035 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:01:07,041 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:01:07,044 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:01:07,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:01:07,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1898680923, now seen corresponding path program 1 times [2019-11-06 19:01:07,065 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:01:07,066 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511304746] [2019-11-06 19:01:07,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:01:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:08,207 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-11-06 19:01:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:08,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 19:01:08,424 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511304746] [2019-11-06 19:01:08,425 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 19:01:08,425 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 19:01:08,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816818766] [2019-11-06 19:01:08,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 19:01:08,432 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:01:08,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 19:01:08,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 19:01:08,449 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 5 states. [2019-11-06 19:01:08,638 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-11-06 19:01:08,966 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-11-06 19:01:13,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:01:13,108 INFO L93 Difference]: Finished difference Result 1082 states and 1940 transitions. [2019-11-06 19:01:13,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 19:01:13,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 190 [2019-11-06 19:01:13,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:01:13,132 INFO L225 Difference]: With dead ends: 1082 [2019-11-06 19:01:13,133 INFO L226 Difference]: Without dead ends: 687 [2019-11-06 19:01:13,142 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-06 19:01:13,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2019-11-06 19:01:13,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 462. [2019-11-06 19:01:13,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2019-11-06 19:01:13,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 756 transitions. [2019-11-06 19:01:13,275 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 756 transitions. Word has length 190 [2019-11-06 19:01:13,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:01:13,280 INFO L462 AbstractCegarLoop]: Abstraction has 462 states and 756 transitions. [2019-11-06 19:01:13,280 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 19:01:13,281 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 756 transitions. [2019-11-06 19:01:13,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-11-06 19:01:13,293 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:01:13,293 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:01:13,294 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:01:13,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:01:13,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1068911710, now seen corresponding path program 1 times [2019-11-06 19:01:13,295 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:01:13,295 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142872960] [2019-11-06 19:01:13,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:01:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:13,528 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-11-06 19:01:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:13,758 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 19:01:13,759 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142872960] [2019-11-06 19:01:13,759 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 19:01:13,759 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 19:01:13,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390443872] [2019-11-06 19:01:13,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 19:01:13,765 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:01:13,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 19:01:13,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-11-06 19:01:13,766 INFO L87 Difference]: Start difference. First operand 462 states and 756 transitions. Second operand 9 states. [2019-11-06 19:01:13,912 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-11-06 19:01:14,303 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-11-06 19:01:17,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:01:17,368 INFO L93 Difference]: Finished difference Result 1370 states and 2282 transitions. [2019-11-06 19:01:17,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 19:01:17,369 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 217 [2019-11-06 19:01:17,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:01:17,377 INFO L225 Difference]: With dead ends: 1370 [2019-11-06 19:01:17,377 INFO L226 Difference]: Without dead ends: 914 [2019-11-06 19:01:17,379 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2019-11-06 19:01:17,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2019-11-06 19:01:17,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 893. [2019-11-06 19:01:17,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 893 states. [2019-11-06 19:01:17,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1312 transitions. [2019-11-06 19:01:17,432 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1312 transitions. Word has length 217 [2019-11-06 19:01:17,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:01:17,433 INFO L462 AbstractCegarLoop]: Abstraction has 893 states and 1312 transitions. [2019-11-06 19:01:17,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 19:01:17,433 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1312 transitions. [2019-11-06 19:01:17,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-11-06 19:01:17,438 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:01:17,438 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:01:17,439 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:01:17,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:01:17,439 INFO L82 PathProgramCache]: Analyzing trace with hash 880538771, now seen corresponding path program 1 times [2019-11-06 19:01:17,440 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:01:17,440 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282083968] [2019-11-06 19:01:17,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:01:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:17,762 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-11-06 19:01:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:18,179 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 41 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 19:01:18,179 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282083968] [2019-11-06 19:01:18,180 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751626135] [2019-11-06 19:01:18,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:01:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:18,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 19:01:18,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 19:01:18,690 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 19:01:18,690 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 19:01:18,691 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2019-11-06 19:01:18,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822094512] [2019-11-06 19:01:18,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 19:01:18,692 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:01:18,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 19:01:18,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-06 19:01:18,693 INFO L87 Difference]: Start difference. First operand 893 states and 1312 transitions. Second operand 3 states. [2019-11-06 19:01:19,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:01:19,889 INFO L93 Difference]: Finished difference Result 2644 states and 3957 transitions. [2019-11-06 19:01:19,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 19:01:19,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2019-11-06 19:01:19,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:01:19,906 INFO L225 Difference]: With dead ends: 2644 [2019-11-06 19:01:19,907 INFO L226 Difference]: Without dead ends: 1757 [2019-11-06 19:01:19,909 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-06 19:01:19,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2019-11-06 19:01:20,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1743. [2019-11-06 19:01:20,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1743 states. [2019-11-06 19:01:20,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2549 transitions. [2019-11-06 19:01:20,018 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2549 transitions. Word has length 235 [2019-11-06 19:01:20,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:01:20,021 INFO L462 AbstractCegarLoop]: Abstraction has 1743 states and 2549 transitions. [2019-11-06 19:01:20,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 19:01:20,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2549 transitions. [2019-11-06 19:01:20,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-11-06 19:01:20,034 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:01:20,034 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:01:20,239 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:01:20,239 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:01:20,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:01:20,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1518602962, now seen corresponding path program 1 times [2019-11-06 19:01:20,241 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:01:20,241 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814888919] [2019-11-06 19:01:20,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:01:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:20,620 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-11-06 19:01:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:20,766 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-11-06 19:01:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:20,994 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 52 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-06 19:01:20,995 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814888919] [2019-11-06 19:01:20,995 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292543716] [2019-11-06 19:01:20,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:01:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:21,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 1075 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-06 19:01:21,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 19:01:21,392 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-06 19:01:21,393 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 19:01:21,393 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2019-11-06 19:01:21,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158801884] [2019-11-06 19:01:21,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 19:01:21,394 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:01:21,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 19:01:21,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-06 19:01:21,395 INFO L87 Difference]: Start difference. First operand 1743 states and 2549 transitions. Second operand 5 states. [2019-11-06 19:01:22,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:01:22,763 INFO L93 Difference]: Finished difference Result 4376 states and 6480 transitions. [2019-11-06 19:01:22,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 19:01:22,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 250 [2019-11-06 19:01:22,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:01:22,782 INFO L225 Difference]: With dead ends: 4376 [2019-11-06 19:01:22,783 INFO L226 Difference]: Without dead ends: 2639 [2019-11-06 19:01:22,789 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-11-06 19:01:22,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2019-11-06 19:01:22,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2597. [2019-11-06 19:01:22,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2597 states. [2019-11-06 19:01:22,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2597 states to 2597 states and 3553 transitions. [2019-11-06 19:01:22,903 INFO L78 Accepts]: Start accepts. Automaton has 2597 states and 3553 transitions. Word has length 250 [2019-11-06 19:01:22,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:01:22,905 INFO L462 AbstractCegarLoop]: Abstraction has 2597 states and 3553 transitions. [2019-11-06 19:01:22,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 19:01:22,905 INFO L276 IsEmpty]: Start isEmpty. Operand 2597 states and 3553 transitions. [2019-11-06 19:01:22,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2019-11-06 19:01:22,914 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:01:22,915 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 19:01:23,119 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:01:23,120 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:01:23,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:01:23,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1763415962, now seen corresponding path program 1 times [2019-11-06 19:01:23,122 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:01:23,122 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337625071] [2019-11-06 19:01:23,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:01:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:23,341 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-11-06 19:01:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:23,645 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 74 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-06 19:01:23,647 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337625071] [2019-11-06 19:01:23,648 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494370049] [2019-11-06 19:01:23,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:01:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:23,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 1252 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-06 19:01:23,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 19:01:24,051 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-06 19:01:24,052 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 19:01:24,052 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2019-11-06 19:01:24,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362063025] [2019-11-06 19:01:24,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 19:01:24,054 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:01:24,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 19:01:24,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-11-06 19:01:24,055 INFO L87 Difference]: Start difference. First operand 2597 states and 3553 transitions. Second operand 11 states. [2019-11-06 19:01:24,249 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-11-06 19:01:24,571 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-11-06 19:01:25,486 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-11-06 19:01:27,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:01:27,921 INFO L93 Difference]: Finished difference Result 6536 states and 9220 transitions. [2019-11-06 19:01:27,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-06 19:01:27,923 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 262 [2019-11-06 19:01:27,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:01:27,951 INFO L225 Difference]: With dead ends: 6536 [2019-11-06 19:01:27,951 INFO L226 Difference]: Without dead ends: 3945 [2019-11-06 19:01:27,960 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=125, Invalid=295, Unknown=0, NotChecked=0, Total=420 [2019-11-06 19:01:27,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3945 states. [2019-11-06 19:01:28,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3945 to 3881. [2019-11-06 19:01:28,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3881 states. [2019-11-06 19:01:28,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3881 states to 3881 states and 5072 transitions. [2019-11-06 19:01:28,100 INFO L78 Accepts]: Start accepts. Automaton has 3881 states and 5072 transitions. Word has length 262 [2019-11-06 19:01:28,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:01:28,100 INFO L462 AbstractCegarLoop]: Abstraction has 3881 states and 5072 transitions. [2019-11-06 19:01:28,100 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 19:01:28,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3881 states and 5072 transitions. [2019-11-06 19:01:28,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-11-06 19:01:28,115 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:01:28,115 INFO L410 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, 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] [2019-11-06 19:01:28,319 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:01:28,320 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:01:28,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:01:28,321 INFO L82 PathProgramCache]: Analyzing trace with hash -597819644, now seen corresponding path program 1 times [2019-11-06 19:01:28,321 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:01:28,321 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504210843] [2019-11-06 19:01:28,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:01:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:28,616 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-11-06 19:01:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:28,900 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 19:01:28,901 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504210843] [2019-11-06 19:01:28,901 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165218514] [2019-11-06 19:01:28,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:01:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:29,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-06 19:01:29,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 19:01:29,205 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 19:01:29,206 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 19:01:29,206 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 9 [2019-11-06 19:01:29,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836882021] [2019-11-06 19:01:29,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 19:01:29,207 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:01:29,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 19:01:29,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-11-06 19:01:29,209 INFO L87 Difference]: Start difference. First operand 3881 states and 5072 transitions. Second operand 9 states. [2019-11-06 19:01:29,509 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-11-06 19:01:30,005 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-11-06 19:01:34,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:01:34,839 INFO L93 Difference]: Finished difference Result 14435 states and 21084 transitions. [2019-11-06 19:01:34,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-06 19:01:34,839 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 273 [2019-11-06 19:01:34,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:01:34,911 INFO L225 Difference]: With dead ends: 14435 [2019-11-06 19:01:34,911 INFO L226 Difference]: Without dead ends: 10560 [2019-11-06 19:01:34,927 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2019-11-06 19:01:34,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10560 states. [2019-11-06 19:01:35,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10560 to 9932. [2019-11-06 19:01:35,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9932 states. [2019-11-06 19:01:35,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9932 states to 9932 states and 13165 transitions. [2019-11-06 19:01:35,322 INFO L78 Accepts]: Start accepts. Automaton has 9932 states and 13165 transitions. Word has length 273 [2019-11-06 19:01:35,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 19:01:35,322 INFO L462 AbstractCegarLoop]: Abstraction has 9932 states and 13165 transitions. [2019-11-06 19:01:35,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 19:01:35,322 INFO L276 IsEmpty]: Start isEmpty. Operand 9932 states and 13165 transitions. [2019-11-06 19:01:35,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2019-11-06 19:01:35,361 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 19:01:35,361 INFO L410 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-06 19:01:35,565 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:01:35,566 INFO L410 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 19:01:35,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 19:01:35,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1413938940, now seen corresponding path program 1 times [2019-11-06 19:01:35,567 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 19:01:35,567 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758809696] [2019-11-06 19:01:35,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 19:01:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:35,800 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-11-06 19:01:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:36,185 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 138 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 19:01:36,186 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758809696] [2019-11-06 19:01:36,186 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849946542] [2019-11-06 19:01:36,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 19:01:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 19:01:36,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-06 19:01:36,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 19:01:36,467 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:01:36,495 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 19:01:36,559 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-06 19:01:36,559 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 19:01:36,559 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2019-11-06 19:01:36,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272798638] [2019-11-06 19:01:36,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 19:01:36,560 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 19:01:36,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 19:01:36,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-11-06 19:01:36,561 INFO L87 Difference]: Start difference. First operand 9932 states and 13165 transitions. Second operand 6 states. [2019-11-06 19:01:38,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 19:01:38,301 INFO L93 Difference]: Finished difference Result 17254 states and 23935 transitions. [2019-11-06 19:01:38,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-06 19:01:38,302 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 303 [2019-11-06 19:01:38,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 19:01:38,393 INFO L225 Difference]: With dead ends: 17254 [2019-11-06 19:01:38,393 INFO L226 Difference]: Without dead ends: 10131