/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/EvenOdd01-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:56:40,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:56:40,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:56:41,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:56:41,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:56:41,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:56:41,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:56:41,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:56:41,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:56:41,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:56:41,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:56:41,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:56:41,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:56:41,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:56:41,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:56:41,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:56:41,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:56:41,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:56:41,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:56:41,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:56:41,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:56:41,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:56:41,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:56:41,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:56:41,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:56:41,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:56:41,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:56:41,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:56:41,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:56:41,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:56:41,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:56:41,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:56:41,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:56:41,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:56:41,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:56:41,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:56:41,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:56:41,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:56:41,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:56:41,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:56:41,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:56:41,044 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:56:41,077 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:56:41,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:56:41,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:56:41,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:56:41,080 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:56:41,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:56:41,081 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:56:41,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:56:41,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:56:41,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:56:41,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:56:41,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:56:41,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:56:41,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:56:41,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:56:41,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:56:41,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:56:41,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:56:41,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:56:41,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:56:41,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:56:41,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:56:41,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:56:41,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:56:41,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:56:41,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:56:41,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:56:41,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:56:41,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:56:41,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:56:41,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:56:41,564 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:56:41,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:56:41,572 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:56:41,573 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:56:41,575 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/EvenOdd01-1.c [2020-09-24 15:56:41,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f798b99f/e8d4ba976a5242eda5b48c4a24b354c8/FLAG85014b5ea [2020-09-24 15:56:42,159 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:56:42,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/EvenOdd01-1.c [2020-09-24 15:56:42,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f798b99f/e8d4ba976a5242eda5b48c4a24b354c8/FLAG85014b5ea [2020-09-24 15:56:42,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f798b99f/e8d4ba976a5242eda5b48c4a24b354c8 [2020-09-24 15:56:42,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:56:42,531 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:56:42,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:56:42,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:56:42,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:56:42,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:56:42" (1/1) ... [2020-09-24 15:56:42,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@283e1fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:42, skipping insertion in model container [2020-09-24 15:56:42,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:56:42" (1/1) ... [2020-09-24 15:56:42,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:56:42,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:56:42,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:56:42,861 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:56:42,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:56:42,900 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:56:42,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:42 WrapperNode [2020-09-24 15:56:42,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:56:42,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:56:42,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:56:42,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:56:42,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:42" (1/1) ... [2020-09-24 15:56:42,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:42" (1/1) ... [2020-09-24 15:56:43,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:42" (1/1) ... [2020-09-24 15:56:43,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:42" (1/1) ... [2020-09-24 15:56:43,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:42" (1/1) ... [2020-09-24 15:56:43,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:42" (1/1) ... [2020-09-24 15:56:43,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:42" (1/1) ... [2020-09-24 15:56:43,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:56:43,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:56:43,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:56:43,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:56:43,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-24 15:56:43,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:56:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:56:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2020-09-24 15:56:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2020-09-24 15:56:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:56:43,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:56:43,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:56:43,104 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2020-09-24 15:56:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2020-09-24 15:56:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:56:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:56:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:56:43,377 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:56:43,378 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 15:56:43,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:56:43 BoogieIcfgContainer [2020-09-24 15:56:43,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:56:43,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:56:43,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:56:43,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:56:43,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:56:42" (1/3) ... [2020-09-24 15:56:43,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb35e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:56:43, skipping insertion in model container [2020-09-24 15:56:43,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:56:42" (2/3) ... [2020-09-24 15:56:43,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb35e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:56:43, skipping insertion in model container [2020-09-24 15:56:43,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:56:43" (3/3) ... [2020-09-24 15:56:43,404 INFO L109 eAbstractionObserver]: Analyzing ICFG EvenOdd01-1.c [2020-09-24 15:56:43,432 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:56:43,442 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:56:43,461 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:56:43,489 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:56:43,489 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:56:43,489 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:56:43,489 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:56:43,490 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:56:43,490 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:56:43,490 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:56:43,490 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:56:43,511 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-09-24 15:56:43,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-24 15:56:43,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:56:43,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:56:43,519 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:56:43,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:56:43,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1047957633, now seen corresponding path program 1 times [2020-09-24 15:56:43,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:56:43,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386211005] [2020-09-24 15:56:43,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:56:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:43,757 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:56:43,758 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:56:43,758 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:56:43,758 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:43,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:56:43,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:43,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 15:56:43,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:43,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:56:43,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:56:43,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 15:56:43,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:44,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:56:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:44,026 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:44,027 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:44,027 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:44,027 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:44,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:56:44,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:44,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:56:44,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:44,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:56:44,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:44,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:56:44,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:44,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:56:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:44,068 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:44,069 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:44,069 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:44,069 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:44,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:56:44,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:44,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:56:44,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:44,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:56:44,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:44,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:56:44,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:44,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:56:44,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386211005] [2020-09-24 15:56:44,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:56:44,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:56:44,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937636084] [2020-09-24 15:56:44,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:56:44,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:56:44,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:56:44,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:56:44,189 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 8 states. [2020-09-24 15:56:44,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:56:44,394 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2020-09-24 15:56:44,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:56:44,397 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2020-09-24 15:56:44,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:56:44,411 INFO L225 Difference]: With dead ends: 60 [2020-09-24 15:56:44,412 INFO L226 Difference]: Without dead ends: 40 [2020-09-24 15:56:44,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:56:44,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-24 15:56:44,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-24 15:56:44,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-24 15:56:44,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-09-24 15:56:44,481 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 20 [2020-09-24 15:56:44,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:56:44,482 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-09-24 15:56:44,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:56:44,482 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-09-24 15:56:44,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-24 15:56:44,485 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:56:44,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:56:44,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:56:44,486 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:56:44,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:56:44,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1743555941, now seen corresponding path program 1 times [2020-09-24 15:56:44,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:56:44,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077236037] [2020-09-24 15:56:44,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:56:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:44,598 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:56:44,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:56:44,601 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:56:44,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:44,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 15:56:44,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:44,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 15:56:44,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:44,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:56:44,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:56:44,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 15:56:44,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:44,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:56:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:44,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:44,795 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:44,795 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:44,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:44,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:56:44,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:44,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:56:44,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:44,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:56:44,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:44,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:56:44,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:44,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:56:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:44,818 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:44,819 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:44,819 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:44,819 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:44,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:56:44,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:44,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:56:44,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:44,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:56:44,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:44,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:56:44,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:44,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:56:44,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077236037] [2020-09-24 15:56:44,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:56:44,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:56:44,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500523174] [2020-09-24 15:56:44,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:56:44,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:56:44,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:56:44,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:56:44,892 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 8 states. [2020-09-24 15:56:45,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:56:45,031 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2020-09-24 15:56:45,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:56:45,032 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-09-24 15:56:45,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:56:45,034 INFO L225 Difference]: With dead ends: 49 [2020-09-24 15:56:45,034 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 15:56:45,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:56:45,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 15:56:45,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-09-24 15:56:45,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-24 15:56:45,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-09-24 15:56:45,044 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 21 [2020-09-24 15:56:45,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:56:45,044 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-09-24 15:56:45,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:56:45,044 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-09-24 15:56:45,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-24 15:56:45,046 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:56:45,046 INFO L422 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] [2020-09-24 15:56:45,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:56:45,047 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:56:45,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:56:45,047 INFO L82 PathProgramCache]: Analyzing trace with hash 698419476, now seen corresponding path program 1 times [2020-09-24 15:56:45,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:56:45,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [410114873] [2020-09-24 15:56:45,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:56:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:45,067 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:45,067 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:45,068 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:45,068 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:45,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 15:56:45,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:45,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:56:45,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:45,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:56:45,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 15:56:45,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:56:45,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:45,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:56:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:45,081 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:45,081 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:45,081 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:45,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:45,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:56:45,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:45,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:56:45,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:45,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:56:45,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:45,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:56:45,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:45,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:56:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:45,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:45,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:45,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:45,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:45,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 15:56:45,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:45,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:56:45,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:45,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:56:45,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 15:56:45,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:56:45,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:45,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:45,114 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:45,115 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:45,115 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:45,115 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:45,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:56:45,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:45,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:56:45,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:45,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:56:45,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:56:45,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:56:45,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:45,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:56:45,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [410114873] [2020-09-24 15:56:45,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:56:45,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:56:45,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565317407] [2020-09-24 15:56:45,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:56:45,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:56:45,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:56:45,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:56:45,151 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 5 states. [2020-09-24 15:56:45,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:56:45,219 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2020-09-24 15:56:45,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:56:45,220 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-09-24 15:56:45,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:56:45,223 INFO L225 Difference]: With dead ends: 61 [2020-09-24 15:56:45,223 INFO L226 Difference]: Without dead ends: 41 [2020-09-24 15:56:45,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:56:45,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-24 15:56:45,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2020-09-24 15:56:45,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-24 15:56:45,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2020-09-24 15:56:45,231 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 29 [2020-09-24 15:56:45,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:56:45,232 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2020-09-24 15:56:45,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:56:45,232 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2020-09-24 15:56:45,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 15:56:45,233 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:56:45,233 INFO L422 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] [2020-09-24 15:56:45,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:56:45,234 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:56:45,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:56:45,234 INFO L82 PathProgramCache]: Analyzing trace with hash 735393428, now seen corresponding path program 1 times [2020-09-24 15:56:45,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:56:45,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648529908] [2020-09-24 15:56:45,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:56:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:45,296 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:56:45,296 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:56:45,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:56:45,297 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:45,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:56:45,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:45,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 15:56:45,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:45,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:56:45,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:56:45,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:56:45,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:45,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:56:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:45,457 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:45,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:45,458 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:45,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:45,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:56:45,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:45,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:56:45,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:45,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:56:45,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:45,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:56:45,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:45,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:56:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:45,488 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:45,489 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:45,489 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:45,489 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:45,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:56:45,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:45,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:56:45,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:45,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:56:45,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:45,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:56:45,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:45,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:45,562 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:45,562 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:45,563 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:45,563 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:45,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:56:45,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:45,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:56:45,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:45,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:56:45,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:45,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:56:45,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:56:45,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648529908] [2020-09-24 15:56:45,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:56:45,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:56:45,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376559403] [2020-09-24 15:56:45,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:56:45,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:56:45,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:56:45,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:56:45,614 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 11 states. [2020-09-24 15:56:45,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:56:45,856 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2020-09-24 15:56:45,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 15:56:45,857 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2020-09-24 15:56:45,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:56:45,859 INFO L225 Difference]: With dead ends: 53 [2020-09-24 15:56:45,859 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 15:56:45,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2020-09-24 15:56:45,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 15:56:45,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2020-09-24 15:56:45,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-24 15:56:45,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2020-09-24 15:56:45,886 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 30 [2020-09-24 15:56:45,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:56:45,887 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-09-24 15:56:45,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:56:45,887 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2020-09-24 15:56:45,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-24 15:56:45,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:56:45,889 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 15:56:45,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:56:45,889 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:56:45,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:56:45,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1128861445, now seen corresponding path program 1 times [2020-09-24 15:56:45,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:56:45,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854975931] [2020-09-24 15:56:45,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:56:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:45,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:45,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:45,909 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:45,909 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:45,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:56:45,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:45,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:56:45,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:45,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:56:45,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 15:56:45,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:56:45,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:45,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:56:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:45,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:45,921 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:45,922 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:45,922 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:45,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:56:45,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:45,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:56:45,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:45,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:56:45,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:45,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:56:45,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:45,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:56:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:45,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:45,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:45,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:45,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:45,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 15:56:45,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:45,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:56:45,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:45,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:56:45,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:56:45,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:56:45,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:45,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:45,952 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:45,952 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:45,952 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:45,953 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:45,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 15:56:45,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:45,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:56:45,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:56:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 15:56:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:56:45,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:45,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:45,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:45,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:45,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:45,972 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:45,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:56:45,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:45,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:56:45,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:45,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:56:45,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:56:45,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:56:45,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:45,994 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 15:56:45,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854975931] [2020-09-24 15:56:45,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:56:45,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:56:45,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069704436] [2020-09-24 15:56:45,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:56:45,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:56:45,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:56:45,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:56:45,996 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 5 states. [2020-09-24 15:56:46,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:56:46,040 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2020-09-24 15:56:46,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:56:46,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-09-24 15:56:46,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:56:46,042 INFO L225 Difference]: With dead ends: 63 [2020-09-24 15:56:46,042 INFO L226 Difference]: Without dead ends: 43 [2020-09-24 15:56:46,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:56:46,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-24 15:56:46,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-24 15:56:46,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-24 15:56:46,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2020-09-24 15:56:46,050 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 38 [2020-09-24 15:56:46,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:56:46,050 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2020-09-24 15:56:46,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:56:46,051 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2020-09-24 15:56:46,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-24 15:56:46,052 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:56:46,052 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 15:56:46,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:56:46,053 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:56:46,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:56:46,053 INFO L82 PathProgramCache]: Analyzing trace with hash -211667235, now seen corresponding path program 1 times [2020-09-24 15:56:46,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:56:46,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115115861] [2020-09-24 15:56:46,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:56:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:46,154 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:56:46,154 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:56:46,154 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:56:46,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:46,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 15:56:46,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:46,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 15:56:46,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:46,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:56:46,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:56:46,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 15:56:46,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:46,326 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 16 [2020-09-24 15:56:46,440 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 16 [2020-09-24 15:56:46,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:56:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:46,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:46,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:46,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:46,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:46,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:56:46,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:46,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:56:46,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:46,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:56:46,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:46,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:56:46,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:46,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:56:46,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:46,499 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:46,499 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:46,499 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:46,500 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:46,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:56:46,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:46,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:56:46,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:46,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:56:46,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:46,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:56:46,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:46,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:46,634 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:46,634 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:46,634 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:46,634 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:46,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:56:46,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:46,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:56:46,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:46,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:56:46,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:46,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:56:46,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:46,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:46,733 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:46,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:46,733 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:46,735 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:46,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:56:46,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:46,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:56:46,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:46,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:56:46,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:46,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:56:46,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:46,804 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 15:56:46,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115115861] [2020-09-24 15:56:46,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:56:46,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 15:56:46,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113414722] [2020-09-24 15:56:46,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 15:56:46,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:56:46,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 15:56:46,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-09-24 15:56:46,808 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand 13 states. [2020-09-24 15:56:47,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:56:47,294 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2020-09-24 15:56:47,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 15:56:47,295 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 39 [2020-09-24 15:56:47,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:56:47,299 INFO L225 Difference]: With dead ends: 62 [2020-09-24 15:56:47,299 INFO L226 Difference]: Without dead ends: 55 [2020-09-24 15:56:47,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2020-09-24 15:56:47,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-24 15:56:47,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2020-09-24 15:56:47,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-24 15:56:47,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2020-09-24 15:56:47,316 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 39 [2020-09-24 15:56:47,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:56:47,317 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2020-09-24 15:56:47,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 15:56:47,317 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2020-09-24 15:56:47,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-24 15:56:47,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:56:47,321 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 15:56:47,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:56:47,323 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:56:47,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:56:47,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1757163992, now seen corresponding path program 1 times [2020-09-24 15:56:47,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:56:47,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1790897769] [2020-09-24 15:56:47,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:56:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:47,456 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:56:47,456 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:56:47,456 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:56:47,457 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:47,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-24 15:56:47,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:47,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 15:56:47,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 15:56:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:56:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 15:56:47,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:47,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:56:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:47,610 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:47,610 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:47,610 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:47,611 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:47,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:56:47,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:47,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:56:47,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:47,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:56:47,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:47,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:56:47,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:47,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:56:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:47,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:47,685 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:47,685 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:47,685 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:47,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:56:47,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:47,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 15:56:47,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 15:56:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:56:47,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:47,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:47,772 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:47,772 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:47,773 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:47,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:47,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:56:47,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:47,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 15:56:47,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:47,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:56:47,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:47,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:56:47,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:47,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:47,885 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:47,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:47,886 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:47,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:47,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:56:47,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:47,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:56:47,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:47,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:56:47,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:47,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:56:47,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:47,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:47,961 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:47,962 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:47,962 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:47,962 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:47,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:56:47,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:47,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:56:47,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:56:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:47,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:56:47,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:48,032 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 15:56:48,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1790897769] [2020-09-24 15:56:48,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:56:48,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 15:56:48,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976353024] [2020-09-24 15:56:48,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 15:56:48,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:56:48,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 15:56:48,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:56:48,035 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand 15 states. [2020-09-24 15:56:48,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:56:48,585 INFO L93 Difference]: Finished difference Result 72 states and 74 transitions. [2020-09-24 15:56:48,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 15:56:48,585 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 48 [2020-09-24 15:56:48,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:56:48,587 INFO L225 Difference]: With dead ends: 72 [2020-09-24 15:56:48,587 INFO L226 Difference]: Without dead ends: 65 [2020-09-24 15:56:48,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=665, Unknown=0, NotChecked=0, Total=756 [2020-09-24 15:56:48,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-24 15:56:48,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2020-09-24 15:56:48,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-24 15:56:48,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2020-09-24 15:56:48,595 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 48 [2020-09-24 15:56:48,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:56:48,595 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2020-09-24 15:56:48,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 15:56:48,595 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2020-09-24 15:56:48,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-24 15:56:48,597 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:56:48,597 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 15:56:48,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:56:48,598 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:56:48,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:56:48,598 INFO L82 PathProgramCache]: Analyzing trace with hash 338577365, now seen corresponding path program 2 times [2020-09-24 15:56:48,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:56:48,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96853786] [2020-09-24 15:56:48,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:56:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:48,725 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:56:48,726 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:56:48,726 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:56:48,726 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:48,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:56:48,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:48,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 15:56:48,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:48,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 15:56:48,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:56:48,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 15:56:48,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:48,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:56:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:48,890 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:48,890 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:48,890 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:48,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:48,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:56:48,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:48,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:56:48,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:48,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:56:48,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:48,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:56:48,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:48,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:56:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:48,959 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:48,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:48,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:48,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:48,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:56:48,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:48,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 15:56:48,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:48,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 15:56:48,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:48,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:56:48,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:49,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:49,070 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:49,070 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:49,071 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:49,071 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:49,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:56:49,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:49,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:56:49,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:49,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:56:49,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:49,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:56:49,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:49,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:49,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:49,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:49,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:49,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:49,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:56:49,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:49,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:56:49,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:49,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:56:49,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:49,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:56:49,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:49,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:49,244 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:49,244 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:49,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:49,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:49,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:56:49,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:49,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:56:49,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:49,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:56:49,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:49,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:56:49,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:49,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:49,318 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:49,318 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:49,319 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:49,319 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:49,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:56:49,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:49,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:56:49,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:56:49,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:49,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:56:49,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:49,416 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-24 15:56:49,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96853786] [2020-09-24 15:56:49,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:56:49,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 15:56:49,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830952604] [2020-09-24 15:56:49,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 15:56:49,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:56:49,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 15:56:49,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:56:49,418 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 17 states. [2020-09-24 15:56:50,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:56:50,135 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2020-09-24 15:56:50,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 15:56:50,136 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 57 [2020-09-24 15:56:50,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:56:50,138 INFO L225 Difference]: With dead ends: 82 [2020-09-24 15:56:50,138 INFO L226 Difference]: Without dead ends: 75 [2020-09-24 15:56:50,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 15:56:50,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-24 15:56:50,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 58. [2020-09-24 15:56:50,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-24 15:56:50,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-09-24 15:56:50,147 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 57 [2020-09-24 15:56:50,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:56:50,147 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-09-24 15:56:50,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 15:56:50,148 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-09-24 15:56:50,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-24 15:56:50,149 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:56:50,149 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:56:50,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:56:50,150 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:56:50,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:56:50,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1346648732, now seen corresponding path program 2 times [2020-09-24 15:56:50,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:56:50,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803247374] [2020-09-24 15:56:50,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:56:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:50,277 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:56:50,278 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:56:50,278 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:56:50,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:50,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:56:50,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:50,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 15:56:50,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:50,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 15:56:50,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:56:50,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:56:50,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:50,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:56:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:50,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:50,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:50,418 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:50,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:50,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:56:50,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:50,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:56:50,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:50,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:56:50,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:50,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:56:50,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:50,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:56:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:50,507 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:50,507 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:50,507 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:50,508 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:50,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:56:50,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:50,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 15:56:50,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:50,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 15:56:50,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:50,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:56:50,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:50,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:50,668 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:50,669 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:50,669 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:50,670 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:50,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:56:50,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:50,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 15:56:50,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:50,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:56:50,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:50,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:56:50,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:50,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:50,822 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:50,823 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:50,823 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:50,823 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:50,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:56:50,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:50,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 15:56:50,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:50,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:56:50,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:50,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:56:50,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:50,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:50,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:50,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:50,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:50,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:50,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:56:50,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:50,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:56:50,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:50,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:56:50,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:50,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:56:50,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:50,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:51,019 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:51,019 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:51,019 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:51,020 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:51,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:56:51,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:51,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:56:51,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:51,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:56:51,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:51,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:56:51,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:51,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:51,099 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:51,099 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:51,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:51,100 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:51,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:56:51,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:51,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:56:51,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:51,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:56:51,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:56:51,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:51,197 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-24 15:56:51,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803247374] [2020-09-24 15:56:51,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:56:51,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 15:56:51,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036720512] [2020-09-24 15:56:51,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 15:56:51,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:56:51,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 15:56:51,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:56:51,205 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 19 states. [2020-09-24 15:56:52,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:56:52,264 INFO L93 Difference]: Finished difference Result 92 states and 94 transitions. [2020-09-24 15:56:52,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 15:56:52,265 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 66 [2020-09-24 15:56:52,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:56:52,266 INFO L225 Difference]: With dead ends: 92 [2020-09-24 15:56:52,266 INFO L226 Difference]: Without dead ends: 85 [2020-09-24 15:56:52,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=129, Invalid=1277, Unknown=0, NotChecked=0, Total=1406 [2020-09-24 15:56:52,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-24 15:56:52,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 63. [2020-09-24 15:56:52,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-24 15:56:52,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2020-09-24 15:56:52,276 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 66 [2020-09-24 15:56:52,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:56:52,276 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2020-09-24 15:56:52,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 15:56:52,277 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2020-09-24 15:56:52,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-24 15:56:52,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:56:52,278 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:56:52,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:56:52,279 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:56:52,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:56:52,280 INFO L82 PathProgramCache]: Analyzing trace with hash -2107047859, now seen corresponding path program 3 times [2020-09-24 15:56:52,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:56:52,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606576534] [2020-09-24 15:56:52,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:56:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:52,476 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:56:52,477 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:56:52,477 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:56:52,477 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:52,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-24 15:56:52,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:52,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-24 15:56:52,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 15:56:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:56:52,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 15:56:52,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:52,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:56:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:52,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:52,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:52,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:52,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:52,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:56:52,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:52,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:56:52,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:52,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:56:52,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:52,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:56:52,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:52,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:56:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:52,727 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:52,727 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:52,727 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:52,728 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:52,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:56:52,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:52,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 15:56:52,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 15:56:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:52,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:56:52,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:52,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:52,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:52,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:52,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:52,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:52,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:56:52,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:52,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-24 15:56:52,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:52,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:56:52,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:52,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:56:52,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:52,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:52,989 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:52,990 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:52,990 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:52,990 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:52,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:56:52,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:52,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 15:56:52,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:52,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:56:52,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:52,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:56:52,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:53,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:53,098 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:53,098 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:53,098 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:53,099 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:53,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:56:53,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:53,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 15:56:53,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:53,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:56:53,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:53,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:56:53,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:53,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:53,205 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:53,205 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:53,205 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:53,206 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:53,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:56:53,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:53,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:56:53,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:53,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:56:53,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:53,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:56:53,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:53,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:53,294 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:53,294 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:53,295 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:53,295 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:53,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:56:53,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:53,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:56:53,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:53,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:56:53,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:56:53,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:53,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:53,374 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:53,374 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:53,375 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:53,375 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:53,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:56:53,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:53,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:56:53,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:53,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:56:53,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:53,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:56:53,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:53,459 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-09-24 15:56:53,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606576534] [2020-09-24 15:56:53,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:56:53,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 15:56:53,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093818742] [2020-09-24 15:56:53,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 15:56:53,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:56:53,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 15:56:53,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=380, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:56:53,462 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand 21 states. [2020-09-24 15:56:54,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:56:54,555 INFO L93 Difference]: Finished difference Result 102 states and 104 transitions. [2020-09-24 15:56:54,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 15:56:54,555 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 75 [2020-09-24 15:56:54,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:56:54,556 INFO L225 Difference]: With dead ends: 102 [2020-09-24 15:56:54,557 INFO L226 Difference]: Without dead ends: 95 [2020-09-24 15:56:54,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=1658, Unknown=0, NotChecked=0, Total=1806 [2020-09-24 15:56:54,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-24 15:56:54,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 68. [2020-09-24 15:56:54,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-24 15:56:54,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2020-09-24 15:56:54,565 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 75 [2020-09-24 15:56:54,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:56:54,565 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2020-09-24 15:56:54,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 15:56:54,566 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2020-09-24 15:56:54,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-24 15:56:54,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:56:54,567 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:56:54,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:56:54,567 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:56:54,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:56:54,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1688547104, now seen corresponding path program 3 times [2020-09-24 15:56:54,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:56:54,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853250837] [2020-09-24 15:56:54,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:56:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:54,763 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:56:54,764 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:56:54,764 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:56:54,764 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:54,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-09-24 15:56:54,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:54,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-24 15:56:54,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-24 15:56:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:56:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-24 15:56:54,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:54,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:56:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:54,946 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:54,946 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:54,946 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:54,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:54,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:56:54,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:54,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:56:54,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:54,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:56:54,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:54,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:56:54,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:54,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:56:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:55,085 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:55,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:55,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:55,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:55,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:56:55,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:55,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 15:56:55,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-24 15:56:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:55,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:56:55,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:55,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:55,277 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:55,277 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:55,278 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:55,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:55,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:56:55,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:55,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 15:56:55,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:55,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:56:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:56:55,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:55,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:55,468 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:55,468 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:55,468 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:55,469 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:55,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:56:55,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:55,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 15:56:55,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:55,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:56:55,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:55,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:56:55,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:55,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:55,639 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:55,639 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:55,639 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:55,640 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:55,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:56:55,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:55,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 15:56:55,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:55,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:56:55,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:55,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:56:55,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:55,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:55,771 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:55,771 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:55,772 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:55,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:55,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:56:55,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:55,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:56:55,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:55,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:56:55,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:55,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:56:55,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:55,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:55,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:55,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:55,878 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:55,878 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:55,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:56:55,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:55,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:56:55,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:56:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:55,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:56:55,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:55,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:55,987 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:55,987 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:55,987 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:55,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:55,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:56:55,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:55,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:56:55,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:55,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:56:55,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:55,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:56:55,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:56,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:56,113 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:56,113 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:56,113 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:56,114 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:56,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:56:56,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:56,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:56:56,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:56,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:56:56,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:56,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:56:56,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:56,230 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-09-24 15:56:56,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853250837] [2020-09-24 15:56:56,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:56:56,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-24 15:56:56,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805686158] [2020-09-24 15:56:56,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-24 15:56:56,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:56:56,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-24 15:56:56,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=503, Unknown=0, NotChecked=0, Total=552 [2020-09-24 15:56:56,233 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand 24 states. [2020-09-24 15:56:57,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:56:57,546 INFO L93 Difference]: Finished difference Result 112 states and 114 transitions. [2020-09-24 15:56:57,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-24 15:56:57,547 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 84 [2020-09-24 15:56:57,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:56:57,548 INFO L225 Difference]: With dead ends: 112 [2020-09-24 15:56:57,548 INFO L226 Difference]: Without dead ends: 105 [2020-09-24 15:56:57,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 12 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=184, Invalid=2168, Unknown=0, NotChecked=0, Total=2352 [2020-09-24 15:56:57,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-24 15:56:57,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 73. [2020-09-24 15:56:57,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-24 15:56:57,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2020-09-24 15:56:57,558 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 84 [2020-09-24 15:56:57,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:56:57,558 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2020-09-24 15:56:57,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-24 15:56:57,559 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2020-09-24 15:56:57,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-24 15:56:57,560 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:56:57,560 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:56:57,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 15:56:57,561 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:56:57,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:56:57,561 INFO L82 PathProgramCache]: Analyzing trace with hash -751656891, now seen corresponding path program 4 times [2020-09-24 15:56:57,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:56:57,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409099259] [2020-09-24 15:56:57,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:56:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:57,771 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:56:57,772 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:56:57,772 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:56:57,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:57,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-24 15:56:57,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:57,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-24 15:56:57,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:57,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-24 15:56:57,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:56:57,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-24 15:56:57,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:58,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:56:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:58,010 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:58,010 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:58,011 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:58,011 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:58,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:56:58,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:58,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:56:58,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:58,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:56:58,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:58,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:56:58,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:58,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:56:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:58,186 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:58,187 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:58,187 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:58,187 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:58,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:56:58,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:58,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-24 15:56:58,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:58,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-24 15:56:58,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:58,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:56:58,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:58,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:58,373 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:58,374 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:58,374 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:58,374 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:58,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:56:58,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:58,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 15:56:58,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:58,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:56:58,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:56:58,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:58,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:58,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:58,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:58,573 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:58,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:58,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:56:58,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:58,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 15:56:58,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:58,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:56:58,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:58,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:56:58,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:58,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:58,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:58,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:58,738 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:58,738 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:58,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:56:58,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:58,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 15:56:58,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:58,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:56:58,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:58,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:56:58,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:56:58,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:58,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:58,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:58,878 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:58,879 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:58,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:56:58,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:58,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 15:56:58,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:58,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:56:58,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:58,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:56:58,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:58,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:59,003 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:59,004 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:59,004 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:59,005 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:59,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:56:59,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:59,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:56:59,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:56:59,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:59,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:56:59,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:59,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:59,154 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:59,154 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:59,155 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:59,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:59,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:56:59,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:59,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 15:56:59,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:56:59,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:56:59,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:59,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:59,269 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:59,269 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:59,270 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:59,270 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:59,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:56:59,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:59,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:56:59,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:59,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:56:59,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:59,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:56:59,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:59,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:56:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:56:59,385 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:56:59,386 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:56:59,387 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:56:59,387 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:56:59,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:56:59,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:56:59,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:56:59,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:56:59,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:56:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:56:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:56:59,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:56:59,555 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-24 15:56:59,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409099259] [2020-09-24 15:56:59,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:56:59,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-24 15:56:59,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454963764] [2020-09-24 15:56:59,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-24 15:56:59,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:56:59,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-24 15:56:59,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=552, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:56:59,557 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand 25 states. [2020-09-24 15:57:01,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:01,276 INFO L93 Difference]: Finished difference Result 122 states and 124 transitions. [2020-09-24 15:57:01,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-09-24 15:57:01,277 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 93 [2020-09-24 15:57:01,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:01,278 INFO L225 Difference]: With dead ends: 122 [2020-09-24 15:57:01,279 INFO L226 Difference]: Without dead ends: 115 [2020-09-24 15:57:01,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=186, Invalid=2570, Unknown=0, NotChecked=0, Total=2756 [2020-09-24 15:57:01,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-09-24 15:57:01,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 78. [2020-09-24 15:57:01,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-24 15:57:01,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 80 transitions. [2020-09-24 15:57:01,286 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 80 transitions. Word has length 93 [2020-09-24 15:57:01,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:01,287 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 80 transitions. [2020-09-24 15:57:01,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-24 15:57:01,287 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2020-09-24 15:57:01,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-24 15:57:01,288 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:01,288 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:01,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 15:57:01,289 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:01,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:01,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1934265180, now seen corresponding path program 4 times [2020-09-24 15:57:01,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:01,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406589450] [2020-09-24 15:57:01,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:01,536 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:57:01,537 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:57:01,537 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:57:01,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:01,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-24 15:57:01,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:01,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-24 15:57:01,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:01,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-09-24 15:57:01,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:01,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-24 15:57:01,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:01,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:01,713 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:01,714 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:01,714 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:01,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:01,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:01,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:01,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:01,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:01,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:01,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:01,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:01,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:01,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:01,957 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:01,958 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:01,958 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:01,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:01,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:57:01,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:01,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-24 15:57:01,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:01,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-24 15:57:01,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:01,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:57:01,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:02,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:02,219 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:02,219 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:02,219 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:02,219 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:02,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:57:02,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:02,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-24 15:57:02,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:02,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:57:02,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:02,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:57:02,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:02,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:02,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:02,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:02,429 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:02,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:02,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:57:02,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:02,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-24 15:57:02,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:02,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:57:02,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:02,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:57:02,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:02,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:02,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:02,608 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:02,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:02,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:02,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:57:02,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:02,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 15:57:02,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:02,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:57:02,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:02,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:57:02,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:02,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:02,766 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:02,767 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:02,767 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:02,767 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:02,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:57:02,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:02,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 15:57:02,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:02,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:02,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:02,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:57:02,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:02,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:02,888 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:02,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:02,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:02,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:02,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:57:02,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:02,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 15:57:02,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:02,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:57:02,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:02,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:03,008 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:03,008 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:03,008 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:03,009 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:03,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:57:03,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:03,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 15:57:03,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:03,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:03,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:03,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:57:03,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:03,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:03,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:03,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:03,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:03,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:03,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:57:03,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:03,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:57:03,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:03,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:57:03,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:03,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:03,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:03,267 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:03,268 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:03,268 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:03,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:57:03,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:03,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:57:03,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:03,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:03,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:57:03,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:03,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:03,412 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:03,412 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:03,413 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:03,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:03,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:57:03,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:03,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:57:03,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:03,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:03,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:03,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:57:03,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:03,595 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-09-24 15:57:03,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406589450] [2020-09-24 15:57:03,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:03,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-09-24 15:57:03,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891500748] [2020-09-24 15:57:03,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-09-24 15:57:03,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:03,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-09-24 15:57:03,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=699, Unknown=0, NotChecked=0, Total=756 [2020-09-24 15:57:03,597 INFO L87 Difference]: Start difference. First operand 78 states and 80 transitions. Second operand 28 states. [2020-09-24 15:57:05,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:05,568 INFO L93 Difference]: Finished difference Result 132 states and 134 transitions. [2020-09-24 15:57:05,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-24 15:57:05,568 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 102 [2020-09-24 15:57:05,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:05,570 INFO L225 Difference]: With dead ends: 132 [2020-09-24 15:57:05,570 INFO L226 Difference]: Without dead ends: 125 [2020-09-24 15:57:05,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=225, Invalid=3197, Unknown=0, NotChecked=0, Total=3422 [2020-09-24 15:57:05,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-24 15:57:05,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 83. [2020-09-24 15:57:05,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-24 15:57:05,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 85 transitions. [2020-09-24 15:57:05,579 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 85 transitions. Word has length 102 [2020-09-24 15:57:05,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:05,580 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 85 transitions. [2020-09-24 15:57:05,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-09-24 15:57:05,580 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions. [2020-09-24 15:57:05,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-24 15:57:05,581 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:05,582 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:05,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 15:57:05,582 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:05,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:05,582 INFO L82 PathProgramCache]: Analyzing trace with hash -390895683, now seen corresponding path program 5 times [2020-09-24 15:57:05,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:05,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388990467] [2020-09-24 15:57:05,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:05,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:57:05,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:57:05,893 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:57:05,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:05,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-24 15:57:05,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:05,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-09-24 15:57:05,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:05,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-09-24 15:57:05,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:05,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 15:57:05,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:06,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:06,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:06,115 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:06,116 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:06,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:06,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:06,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:06,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:06,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:06,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:06,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:06,372 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:06,373 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:06,373 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:06,373 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:06,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:57:06,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:06,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-24 15:57:06,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-09-24 15:57:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:57:06,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:06,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:06,651 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:06,651 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:06,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:06,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:06,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:57:06,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:06,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-24 15:57:06,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 15:57:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:57:06,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:06,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:06,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:06,901 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:06,902 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:06,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:06,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:57:06,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:06,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-24 15:57:06,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:06,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:57:06,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:06,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:57:06,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:06,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:07,109 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:07,109 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:07,109 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:07,110 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:07,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:57:07,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:07,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 15:57:07,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:07,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:57:07,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:07,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:57:07,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:07,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:07,299 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:07,299 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:07,300 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:07,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:07,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:57:07,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:07,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 15:57:07,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:07,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:57:07,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:07,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:57:07,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:07,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:07,551 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:07,551 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:07,552 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:07,552 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:07,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:57:07,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:07,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-24 15:57:07,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:07,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:07,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:07,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:57:07,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:07,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:07,701 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:07,701 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:07,702 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:07,702 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:07,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:57:07,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:07,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 15:57:07,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:07,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:07,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:07,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:57:07,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:07,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:07,821 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:07,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:07,822 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:07,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:07,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:57:07,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:07,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:57:07,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:07,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:07,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:07,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:57:07,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:07,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:07,947 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:07,947 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:07,947 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:07,947 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:07,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:57:07,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:07,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:57:07,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:07,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:07,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:07,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:57:07,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:08,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:08,065 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:08,065 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:08,065 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:08,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:08,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:57:08,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:08,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:57:08,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:08,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:08,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:57:08,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:08,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:08,238 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:08,238 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:08,239 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:08,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:08,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:57:08,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:08,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:57:08,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:08,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:57:08,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:08,398 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-09-24 15:57:08,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388990467] [2020-09-24 15:57:08,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:08,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-09-24 15:57:08,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158453918] [2020-09-24 15:57:08,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-09-24 15:57:08,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:08,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-09-24 15:57:08,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=809, Unknown=0, NotChecked=0, Total=870 [2020-09-24 15:57:08,401 INFO L87 Difference]: Start difference. First operand 83 states and 85 transitions. Second operand 30 states. [2020-09-24 15:57:10,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:10,867 INFO L93 Difference]: Finished difference Result 142 states and 144 transitions. [2020-09-24 15:57:10,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-09-24 15:57:10,868 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 111 [2020-09-24 15:57:10,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:10,869 INFO L225 Difference]: With dead ends: 142 [2020-09-24 15:57:10,869 INFO L226 Difference]: Without dead ends: 135 [2020-09-24 15:57:10,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=244, Invalid=3788, Unknown=0, NotChecked=0, Total=4032 [2020-09-24 15:57:10,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-24 15:57:10,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 88. [2020-09-24 15:57:10,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-24 15:57:10,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 90 transitions. [2020-09-24 15:57:10,882 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 90 transitions. Word has length 111 [2020-09-24 15:57:10,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:10,882 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 90 transitions. [2020-09-24 15:57:10,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-09-24 15:57:10,882 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 90 transitions. [2020-09-24 15:57:10,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-24 15:57:10,884 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:10,884 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:10,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 15:57:10,885 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:10,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:10,885 INFO L82 PathProgramCache]: Analyzing trace with hash 2094114280, now seen corresponding path program 5 times [2020-09-24 15:57:10,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:10,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712835565] [2020-09-24 15:57:10,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:11,238 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:57:11,239 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:57:11,239 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:57:11,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:11,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 15:57:11,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:11,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-09-24 15:57:11,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:11,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-09-24 15:57:11,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:11,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-24 15:57:11,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:11,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:11,428 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:11,428 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:11,428 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:11,429 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:11,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:11,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:11,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:11,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:11,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:11,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:11,701 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:11,701 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:11,701 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:11,701 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:11,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:57:11,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:11,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-24 15:57:11,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:11,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-09-24 15:57:11,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:11,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:57:11,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:11,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:11,997 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:11,997 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:11,997 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:11,998 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:11,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:57:11,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:11,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-24 15:57:11,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:11,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-24 15:57:11,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:11,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:57:11,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:12,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:12,282 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:12,283 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:12,283 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:12,283 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:12,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:57:12,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:12,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-24 15:57:12,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:12,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 15:57:12,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:12,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:57:12,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:12,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:12,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:12,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:12,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:12,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:12,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:57:12,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:12,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-24 15:57:12,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:57:12,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:12,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:57:12,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:12,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:12,690 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:12,690 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:12,691 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:12,691 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:12,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:57:12,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:12,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 15:57:12,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:12,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:57:12,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:12,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:57:12,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:12,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:12,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:12,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:12,868 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:12,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:12,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:57:12,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:12,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 15:57:12,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:57:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:12,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:57:12,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:12,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:13,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:13,041 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:13,041 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:13,042 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:13,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:57:13,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:13,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 15:57:13,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:13,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:13,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:13,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:57:13,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:13,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:13,214 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:13,214 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:13,215 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:13,215 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:13,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:57:13,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:13,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 15:57:13,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:13,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:57:13,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:13,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:13,378 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:13,379 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:13,380 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:13,380 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:13,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:57:13,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:13,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 15:57:13,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:13,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:13,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:13,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:57:13,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:13,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:13,550 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:13,551 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:13,551 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:13,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:13,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:57:13,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:13,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:57:13,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:13,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:13,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:13,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:57:13,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:13,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:13,688 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:13,688 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:13,689 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:13,689 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:13,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:57:13,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:13,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:57:13,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:13,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:13,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:13,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:57:13,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:13,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:13,866 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:13,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:13,867 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:13,867 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:13,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:57:13,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:13,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:57:13,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:13,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:13,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:13,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:57:13,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:14,086 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-24 15:57:14,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712835565] [2020-09-24 15:57:14,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:14,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-09-24 15:57:14,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352009091] [2020-09-24 15:57:14,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-09-24 15:57:14,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:14,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-09-24 15:57:14,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=927, Unknown=0, NotChecked=0, Total=992 [2020-09-24 15:57:14,089 INFO L87 Difference]: Start difference. First operand 88 states and 90 transitions. Second operand 32 states. [2020-09-24 15:57:16,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:16,792 INFO L93 Difference]: Finished difference Result 152 states and 154 transitions. [2020-09-24 15:57:16,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-09-24 15:57:16,792 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 120 [2020-09-24 15:57:16,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:16,794 INFO L225 Difference]: With dead ends: 152 [2020-09-24 15:57:16,794 INFO L226 Difference]: Without dead ends: 145 [2020-09-24 15:57:16,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=266, Invalid=4426, Unknown=0, NotChecked=0, Total=4692 [2020-09-24 15:57:16,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-09-24 15:57:16,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 93. [2020-09-24 15:57:16,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-24 15:57:16,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 95 transitions. [2020-09-24 15:57:16,803 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 95 transitions. Word has length 120 [2020-09-24 15:57:16,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:16,804 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 95 transitions. [2020-09-24 15:57:16,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-09-24 15:57:16,804 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 95 transitions. [2020-09-24 15:57:16,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-24 15:57:16,805 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:16,805 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:16,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 15:57:16,806 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:16,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:16,806 INFO L82 PathProgramCache]: Analyzing trace with hash -501508427, now seen corresponding path program 6 times [2020-09-24 15:57:16,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:16,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796104552] [2020-09-24 15:57:16,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:17,188 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:57:17,188 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:57:17,189 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:57:17,189 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:17,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-09-24 15:57:17,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:17,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-09-24 15:57:17,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:17,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 56 [2020-09-24 15:57:17,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:17,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-09-24 15:57:17,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:17,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:17,393 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:17,394 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:17,394 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:17,394 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:17,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:17,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:17,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:17,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:17,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:17,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:17,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:17,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:17,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:17,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:17,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:57:17,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:17,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-09-24 15:57:17,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:17,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-09-24 15:57:17,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:17,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:57:17,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:17,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:18,092 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:18,092 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:18,092 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:18,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:18,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:57:18,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:18,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-24 15:57:18,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:18,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-09-24 15:57:18,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:18,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:57:18,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:18,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:18,400 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:18,401 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:18,401 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:18,401 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:18,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:57:18,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:18,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-24 15:57:18,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-24 15:57:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:18,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:57:18,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:18,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:18,663 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:18,663 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:18,664 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:18,664 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:18,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:57:18,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:18,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-24 15:57:18,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:18,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 15:57:18,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:18,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:57:18,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:18,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:18,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:18,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:18,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:18,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:18,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:57:18,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:18,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-24 15:57:18,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:18,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:57:18,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:18,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:57:18,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:18,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:19,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:19,121 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:19,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:19,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:19,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:57:19,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:19,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-24 15:57:19,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:19,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:57:19,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:19,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:57:19,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:19,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:19,318 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:19,318 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:19,318 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:19,319 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:19,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:57:19,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:19,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 15:57:19,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:19,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:57:19,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:19,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:57:19,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:19,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:19,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:19,493 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:19,493 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:19,493 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:19,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:57:19,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:19,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 15:57:19,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:19,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:19,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:19,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:57:19,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:19,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:19,690 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:19,690 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:19,690 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:19,690 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:19,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:57:19,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:19,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:57:19,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:19,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:19,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:19,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:57:19,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:19,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:19,844 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:19,845 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:19,845 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:19,845 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:19,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:57:19,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:19,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:57:19,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:19,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:57:19,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:19,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:19,984 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:19,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:19,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:19,985 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:19,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:57:19,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:19,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:57:19,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:19,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:19,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:19,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:57:19,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:20,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:20,107 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:20,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:20,107 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:20,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:20,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:57:20,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:20,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:57:20,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:20,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:20,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:20,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:57:20,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:20,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:20,274 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:20,274 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:20,275 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:20,275 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:20,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:57:20,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:20,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:57:20,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:20,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:20,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:20,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:57:20,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:20,721 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 177 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-09-24 15:57:20,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796104552] [2020-09-24 15:57:20,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:20,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-09-24 15:57:20,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670972528] [2020-09-24 15:57:20,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-09-24 15:57:20,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:20,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-09-24 15:57:20,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=1053, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 15:57:20,724 INFO L87 Difference]: Start difference. First operand 93 states and 95 transitions. Second operand 34 states. [2020-09-24 15:57:24,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:24,116 INFO L93 Difference]: Finished difference Result 162 states and 164 transitions. [2020-09-24 15:57:24,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-09-24 15:57:24,117 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 129 [2020-09-24 15:57:24,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:24,118 INFO L225 Difference]: With dead ends: 162 [2020-09-24 15:57:24,118 INFO L226 Difference]: Without dead ends: 155 [2020-09-24 15:57:24,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=285, Invalid=5117, Unknown=0, NotChecked=0, Total=5402 [2020-09-24 15:57:24,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-09-24 15:57:24,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 98. [2020-09-24 15:57:24,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-24 15:57:24,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2020-09-24 15:57:24,127 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 100 transitions. Word has length 129 [2020-09-24 15:57:24,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:24,127 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 100 transitions. [2020-09-24 15:57:24,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-09-24 15:57:24,128 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 100 transitions. [2020-09-24 15:57:24,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-24 15:57:24,129 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:24,129 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:24,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 15:57:24,129 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:24,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:24,130 INFO L82 PathProgramCache]: Analyzing trace with hash -436935508, now seen corresponding path program 6 times [2020-09-24 15:57:24,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:24,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984866925] [2020-09-24 15:57:24,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:24,544 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:57:24,545 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:57:24,545 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:57:24,545 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:24,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 15:57:24,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:24,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-09-24 15:57:24,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:24,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 60 [2020-09-24 15:57:24,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:24,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-09-24 15:57:24,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:24,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:24,726 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:24,726 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:24,727 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:24,727 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:24,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:24,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:24,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:24,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:24,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:24,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:24,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:25,081 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:25,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:25,082 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:25,082 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:25,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:57:25,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:25,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-09-24 15:57:25,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:25,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-09-24 15:57:25,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:25,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-24 15:57:25,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:25,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:25,411 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:25,412 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:25,412 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:25,412 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:25,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:57:25,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:25,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-24 15:57:25,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-09-24 15:57:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:25,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:57:25,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:25,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:25,727 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:25,727 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:25,727 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:25,727 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:25,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:57:25,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:25,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-24 15:57:25,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:25,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-09-24 15:57:25,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:25,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:57:25,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:25,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:26,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:26,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:26,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:26,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:26,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:57:26,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:26,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-24 15:57:26,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:26,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-24 15:57:26,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:26,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:57:26,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:26,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:26,293 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:26,293 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:26,294 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:26,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:26,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:57:26,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:26,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-24 15:57:26,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:26,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 15:57:26,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:26,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:57:26,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:26,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:26,515 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:26,515 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:26,515 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:26,515 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:26,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 15:57:26,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:26,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 15:57:26,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:57:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:57:26,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:26,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:26,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:26,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:26,731 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:26,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:26,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 15:57:26,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:26,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 15:57:26,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:26,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:57:26,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:26,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:57:26,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:26,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:26,911 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:26,912 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:26,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:26,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:26,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:57:26,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:26,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 15:57:26,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:26,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:57:26,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:26,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 15:57:26,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:27,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:27,122 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:27,123 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:27,123 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:27,124 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:27,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 15:57:27,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:27,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 15:57:27,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:27,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:27,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:27,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 15:57:27,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:27,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:27,288 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:27,288 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:27,288 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:27,288 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:27,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:57:27,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:27,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:57:27,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:27,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:27,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:27,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 15:57:27,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:27,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:27,444 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:27,444 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:27,445 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:27,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:27,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:57:27,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:27,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 15:57:27,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:27,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:27,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:27,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:57:27,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:27,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:27,575 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:27,575 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:27,575 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:27,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:27,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:57:27,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:27,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:57:27,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:57:27,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:27,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:27,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:27,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:27,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:27,738 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:27,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 15:57:27,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:27,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:57:27,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 15:57:27,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:27,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:27,895 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:27,896 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:27,896 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:27,896 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:27,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:57:27,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:27,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:57:27,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:27,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:27,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:27,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:57:27,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:28,176 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-09-24 15:57:28,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984866925] [2020-09-24 15:57:28,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:28,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-09-24 15:57:28,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808701051] [2020-09-24 15:57:28,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-09-24 15:57:28,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:28,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-09-24 15:57:28,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=1122, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 15:57:28,179 INFO L87 Difference]: Start difference. First operand 98 states and 100 transitions. Second operand 35 states. [2020-09-24 15:57:31,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:31,852 INFO L93 Difference]: Finished difference Result 172 states and 174 transitions. [2020-09-24 15:57:31,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-09-24 15:57:31,853 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 138 [2020-09-24 15:57:31,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:31,854 INFO L225 Difference]: With dead ends: 172 [2020-09-24 15:57:31,854 INFO L226 Difference]: Without dead ends: 165 [2020-09-24 15:57:31,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 22 SyntacticMatches, 8 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=281, Invalid=5725, Unknown=0, NotChecked=0, Total=6006 [2020-09-24 15:57:31,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-24 15:57:31,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 103. [2020-09-24 15:57:31,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-24 15:57:31,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 105 transitions. [2020-09-24 15:57:31,870 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 105 transitions. Word has length 138 [2020-09-24 15:57:31,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:31,870 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 105 transitions. [2020-09-24 15:57:31,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-09-24 15:57:31,870 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 105 transitions. [2020-09-24 15:57:31,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-09-24 15:57:31,872 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:31,872 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:31,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 15:57:31,872 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:31,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:31,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1952223955, now seen corresponding path program 7 times [2020-09-24 15:57:31,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:31,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053929229] [2020-09-24 15:57:31,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:32,397 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 15:57:32,398 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-24 15:57:32,398 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-24 15:57:32,398 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:32,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-09-24 15:57:32,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:32,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-09-24 15:57:32,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:32,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 64 [2020-09-24 15:57:32,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:32,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-09-24 15:57:32,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:32,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:32,562 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:32,562 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:32,562 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:32,562 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:32,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:32,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:32,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:32,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:32,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:32,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:32,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:32,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:32,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:33,017 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:33,017 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:33,017 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:33,018 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:33,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-24 15:57:33,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:33,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-09-24 15:57:33,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-09-24 15:57:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-09-24 15:57:33,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:33,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:33,446 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:33,447 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:33,447 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:33,447 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:33,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:57:33,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:33,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-09-24 15:57:33,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-09-24 15:57:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-24 15:57:33,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:33,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:33,852 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:33,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:33,853 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:33,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:33,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 15:57:33,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:33,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-24 15:57:33,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:33,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-09-24 15:57:33,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:33,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:57:33,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:33,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:34,186 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:34,187 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:34,187 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:34,187 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:34,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:57:34,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:34,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 15:57:34,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:34,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-09-24 15:57:34,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:34,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-24 15:57:34,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:34,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:34,480 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:34,481 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:34,481 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:34,481 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:34,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 15:57:34,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:34,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-24 15:57:34,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:34,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-24 15:57:34,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:34,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 15:57:34,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:34,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:34,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:34,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:34,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:34,738 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:34,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:57:34,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:34,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-24 15:57:34,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:34,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 15:57:34,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:34,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:57:34,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:34,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:57:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat