/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --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/Fibonacci02.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:08:23,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:08:23,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:08:23,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:08:23,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:08:23,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:08:23,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:08:23,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:08:23,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:08:23,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:08:23,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:08:23,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:08:23,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:08:23,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:08:23,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:08:23,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:08:23,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:08:23,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:08:23,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:08:23,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:08:23,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:08:23,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:08:23,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:08:23,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:08:23,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:08:23,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:08:23,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:08:23,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:08:23,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:08:23,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:08:23,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:08:23,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:08:23,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:08:23,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:08:23,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:08:23,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:08:23,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:08:23,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:08:23,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:08:23,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:08:23,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:08:23,748 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 [2020-09-25 03:08:23,781 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:08:23,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:08:23,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:08:23,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:08:23,786 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:08:23,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:08:23,786 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:08:23,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:08:23,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:08:23,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:08:23,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:08:23,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:08:23,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:08:23,787 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:08:23,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:08:23,788 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:08:23,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:08:23,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:08:23,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:08:23,789 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:08:23,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:08:23,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:08:23,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:08:23,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:08:23,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:08:23,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:08:23,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:08:23,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:08:23,790 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:08:23,791 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;enumeration-timeout=5000;interpolation-heuristic=WIDEST;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;enumeration-timeout=5000;interpolation-heuristic=WIDEST;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;enumeration-timeout=5000;interpolation-heuristic=WIDEST;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;enumeration-timeout=5000;interpolation-heuristic=WIDEST;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;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 03:08:24,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:08:24,325 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:08:24,333 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:08:24,335 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:08:24,336 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:08:24,337 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci02.c [2020-09-25 03:08:24,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e3a86505a/cb9540f3bc9445fe9ef92304f53b7eeb/FLAG7e30df5e8 [2020-09-25 03:08:24,987 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:08:24,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci02.c [2020-09-25 03:08:24,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e3a86505a/cb9540f3bc9445fe9ef92304f53b7eeb/FLAG7e30df5e8 [2020-09-25 03:08:25,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e3a86505a/cb9540f3bc9445fe9ef92304f53b7eeb [2020-09-25 03:08:25,340 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:08:25,346 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:08:25,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:08:25,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:08:25,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:08:25,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194bd3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25, skipping insertion in model container [2020-09-25 03:08:25,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:08:25,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:08:25,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:08:25,614 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:08:25,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:08:25,653 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:08:25,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25 WrapperNode [2020-09-25 03:08:25,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:08:25,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:08:25,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:08:25,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:08:25,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:08:25,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:08:25,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:08:25,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:08:25,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (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 [2020-09-25 03:08:25,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:08:25,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:08:25,864 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 03:08:25,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:08:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:08:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:08:25,864 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 03:08:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:08:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:08:25,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:08:26,077 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:08:26,078 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:08:26,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:08:26 BoogieIcfgContainer [2020-09-25 03:08:26,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:08:26,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:08:26,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:08:26,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:08:26,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:08:25" (1/3) ... [2020-09-25 03:08:26,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739b4cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:08:26, skipping insertion in model container [2020-09-25 03:08:26,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (2/3) ... [2020-09-25 03:08:26,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739b4cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:08:26, skipping insertion in model container [2020-09-25 03:08:26,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:08:26" (3/3) ... [2020-09-25 03:08:26,127 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci02.c [2020-09-25 03:08:26,142 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:08:26,175 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:08:26,199 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:08:26,232 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:08:26,232 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:08:26,232 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:08:26,232 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:08:26,232 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:08:26,233 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:08:26,233 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:08:26,233 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:08:26,254 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 03:08:26,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 03:08:26,262 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:26,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:26,264 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:26,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:26,271 INFO L82 PathProgramCache]: Analyzing trace with hash 2085313281, now seen corresponding path program 1 times [2020-09-25 03:08:26,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:26,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253705585] [2020-09-25 03:08:26,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:26,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:26,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:26,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:08:26,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:26,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 03:08:26,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:26,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:26,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:08:26,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:08:26,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:08:26,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:26,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:26,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:26,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:26,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:26,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:08:26,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:26,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:26,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:26,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:08:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:26,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:26,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:26,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:26,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:26,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 03:08:26,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:08:26,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:26,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:26,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:08:26,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253705585] [2020-09-25 03:08:26,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:08:26,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:08:26,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369598507] [2020-09-25 03:08:26,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:08:26,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:26,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:08:26,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:08:26,639 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 03:08:26,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:26,783 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 03:08:26,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:08:26,786 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 03:08:26,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:26,799 INFO L225 Difference]: With dead ends: 44 [2020-09-25 03:08:26,800 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 03:08:26,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:08:26,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 03:08:26,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 03:08:26,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 03:08:26,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 03:08:26,861 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 03:08:26,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:26,862 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 03:08:26,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:08:26,863 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 03:08:26,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 03:08:26,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:26,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:26,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:08:26,866 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:26,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:26,867 INFO L82 PathProgramCache]: Analyzing trace with hash -93144392, now seen corresponding path program 1 times [2020-09-25 03:08:26,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:26,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070733998] [2020-09-25 03:08:26,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:26,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 03:08:27,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:27,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 03:08:27,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:27,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:08:27,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:27,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:27,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:27,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:27,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:08:27,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:27,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:27,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:27,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:27,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:08:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:27,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:27,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 03:08:27,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:08:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:27,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:27,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:08:27,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070733998] [2020-09-25 03:08:27,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:08:27,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:08:27,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739603326] [2020-09-25 03:08:27,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:08:27,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:27,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:08:27,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:08:27,159 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 03:08:27,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:27,234 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 03:08:27,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:08:27,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 03:08:27,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:27,236 INFO L225 Difference]: With dead ends: 36 [2020-09-25 03:08:27,237 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 03:08:27,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:08:27,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 03:08:27,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 03:08:27,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 03:08:27,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 03:08:27,247 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 03:08:27,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:27,248 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 03:08:27,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:08:27,248 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 03:08:27,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 03:08:27,250 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:27,250 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-25 03:08:27,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:08:27,250 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:27,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:27,251 INFO L82 PathProgramCache]: Analyzing trace with hash 37359445, now seen corresponding path program 1 times [2020-09-25 03:08:27,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:27,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107183558] [2020-09-25 03:08:27,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 03:08:27,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:08:27,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 573 [2020-09-25 03:08:27,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:08:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:08:27,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:08:27,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:27,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:27,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:08:27,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:27,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:27,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:27,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:08:27,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:08:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:28,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:08:28,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:08:28,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-09-25 03:08:28,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:28,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:28,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:08:28,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:08:28,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:28,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:28,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:28,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:28,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:28,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:08:28,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:28,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:28,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:28,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:28,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:28,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:28,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:08:28,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:28,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:28,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:28,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:28,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:08:28,352 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:08:28,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107183558] [2020-09-25 03:08:28,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:28,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:08:28,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34639919] [2020-09-25 03:08:28,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:08:28,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:28,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:08:28,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:08:28,358 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2020-09-25 03:08:28,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:28,485 INFO L93 Difference]: Finished difference Result 62 states and 79 transitions. [2020-09-25 03:08:28,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:08:28,486 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 03:08:28,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:28,488 INFO L225 Difference]: With dead ends: 62 [2020-09-25 03:08:28,488 INFO L226 Difference]: Without dead ends: 40 [2020-09-25 03:08:28,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:08:28,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-25 03:08:28,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2020-09-25 03:08:28,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 03:08:28,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2020-09-25 03:08:28,501 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 33 [2020-09-25 03:08:28,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:28,501 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2020-09-25 03:08:28,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:08:28,502 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2020-09-25 03:08:28,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 03:08:28,504 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:28,504 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:28,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:08:28,505 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:28,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:28,505 INFO L82 PathProgramCache]: Analyzing trace with hash -878558549, now seen corresponding path program 1 times [2020-09-25 03:08:28,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:28,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985706664] [2020-09-25 03:08:28,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:28,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 03:08:29,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:08:29,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 566 [2020-09-25 03:08:29,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:29,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:08:29,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 03:08:29,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:29,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:29,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:29,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:08:29,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:29,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:29,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:29,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:29,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:08:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:08:29,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:08:29,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-09-25 03:08:29,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:29,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:08:29,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:08:29,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:29,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:29,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:29,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 03:08:29,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:29,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:29,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:29,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:29,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:08:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:29,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:29,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:08:29,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:29,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:29,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:29,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:29,841 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:08:29,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985706664] [2020-09-25 03:08:29,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:29,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:08:29,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766271185] [2020-09-25 03:08:29,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:08:29,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:29,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:08:29,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:08:29,848 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 7 states. [2020-09-25 03:08:30,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:30,014 INFO L93 Difference]: Finished difference Result 94 states and 129 transitions. [2020-09-25 03:08:30,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:08:30,015 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 03:08:30,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:30,019 INFO L225 Difference]: With dead ends: 94 [2020-09-25 03:08:30,019 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 03:08:30,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:08:30,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 03:08:30,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2020-09-25 03:08:30,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 03:08:30,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2020-09-25 03:08:30,037 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 35 [2020-09-25 03:08:30,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:30,038 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2020-09-25 03:08:30,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:08:30,038 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2020-09-25 03:08:30,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 03:08:30,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:30,041 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 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] [2020-09-25 03:08:30,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:08:30,041 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:30,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:30,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1945698440, now seen corresponding path program 1 times [2020-09-25 03:08:30,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:30,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082653738] [2020-09-25 03:08:30,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:30,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:35,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 03:08:35,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:08:35,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 03:08:35,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:35,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:35,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:08:35,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 03:08:35,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:35,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:35,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:35,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:35,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:35,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:35,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:35,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:35,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:35,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:08:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:35,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:36,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:40,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:40,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:08:40,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:08:40,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 03:08:40,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:08:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:08:40,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:40,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:40,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:40,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:40,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:40,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:40,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:08:40,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:08:40,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 03:08:40,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:40,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:40,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:40,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:08:40,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:40,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:40,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:40,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:40,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:40,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:40,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:08:40,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:40,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:40,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:40,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:40,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:40,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:40,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:40,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:40,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:08:40,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:40,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:40,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:40,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:40,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:40,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 03:08:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:40,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:40,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:40,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:40,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:40,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:08:40,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:40,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:40,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:40,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:40,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:40,371 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 03:08:40,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082653738] [2020-09-25 03:08:40,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:40,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 03:08:40,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083042347] [2020-09-25 03:08:40,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:08:40,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:40,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:08:40,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:08:40,374 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. Second operand 10 states. [2020-09-25 03:08:40,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:40,557 INFO L93 Difference]: Finished difference Result 88 states and 119 transitions. [2020-09-25 03:08:40,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 03:08:40,559 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2020-09-25 03:08:40,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:40,562 INFO L225 Difference]: With dead ends: 88 [2020-09-25 03:08:40,562 INFO L226 Difference]: Without dead ends: 82 [2020-09-25 03:08:40,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:08:40,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-25 03:08:40,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 76. [2020-09-25 03:08:40,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-25 03:08:40,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 105 transitions. [2020-09-25 03:08:40,602 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 105 transitions. Word has length 51 [2020-09-25 03:08:40,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:40,603 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 105 transitions. [2020-09-25 03:08:40,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:08:40,603 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 105 transitions. [2020-09-25 03:08:40,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 03:08:40,614 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:40,614 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:40,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:08:40,615 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:40,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:40,615 INFO L82 PathProgramCache]: Analyzing trace with hash 107501234, now seen corresponding path program 2 times [2020-09-25 03:08:40,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:40,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320109590] [2020-09-25 03:08:40,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:40,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:40,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:40,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:40,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:40,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:40,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:42,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:45,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 03:08:45,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 03:08:45,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 03:08:45,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:08:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 03:08:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:08:45,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:45,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:45,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:45,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:45,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:45,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:45,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:45,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:45,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:45,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:45,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:45,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:08:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:45,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:50,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 03:08:50,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 03:08:50,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 03:08:50,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:50,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:08:50,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:08:50,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:08:50,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:50,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:50,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:50,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:08:50,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:50,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-25 03:08:50,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:50,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:50,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:50,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:08:50,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:50,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:50,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:50,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:50,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:50,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 03:08:50,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:50,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:50,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:50,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:50,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:50,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:08:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:50,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:50,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:50,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:50,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:08:50,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:50,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:50,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:50,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:50,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:50,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 03:08:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:51,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:52,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:52,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:08:52,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 03:08:52,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1798 [2020-09-25 03:08:52,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:08:52,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:08:52,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:08:52,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:52,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:52,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:52,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:52,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:52,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:52,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:08:52,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:52,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:52,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:52,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:52,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:52,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:08:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:52,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:52,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:52,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:53,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:08:53,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:08:53,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 03:08:53,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:53,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:53,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:53,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:08:53,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:53,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:53,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:53,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:53,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:53,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:08:53,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:53,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:53,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:53,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:53,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:53,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:08:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:53,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:53,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:53,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:53,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:08:53,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:53,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:53,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:53,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:53,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:53,206 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 86 proven. 73 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-09-25 03:08:53,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320109590] [2020-09-25 03:08:53,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:53,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 03:08:53,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597323559] [2020-09-25 03:08:53,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 03:08:53,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:53,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 03:08:53,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:08:53,211 INFO L87 Difference]: Start difference. First operand 76 states and 105 transitions. Second operand 12 states. [2020-09-25 03:08:53,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:53,660 INFO L93 Difference]: Finished difference Result 188 states and 310 transitions. [2020-09-25 03:08:53,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 03:08:53,660 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 87 [2020-09-25 03:08:53,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:53,664 INFO L225 Difference]: With dead ends: 188 [2020-09-25 03:08:53,664 INFO L226 Difference]: Without dead ends: 117 [2020-09-25 03:08:53,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-09-25 03:08:53,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-25 03:08:53,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 101. [2020-09-25 03:08:53,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 03:08:53,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 148 transitions. [2020-09-25 03:08:53,684 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 148 transitions. Word has length 87 [2020-09-25 03:08:53,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:53,685 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 148 transitions. [2020-09-25 03:08:53,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 03:08:53,685 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 148 transitions. [2020-09-25 03:08:53,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-09-25 03:08:53,688 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:53,688 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 7, 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] [2020-09-25 03:08:53,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:08:53,690 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:53,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:53,690 INFO L82 PathProgramCache]: Analyzing trace with hash 422985096, now seen corresponding path program 3 times [2020-09-25 03:08:53,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:53,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055266480] [2020-09-25 03:08:53,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:53,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:54,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:54,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:58,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:58,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-25 03:08:58,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-09-25 03:08:58,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 03:08:58,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:58,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:08:58,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:08:58,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 03:08:58,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:58,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:58,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:58,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:58,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:58,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:58,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:58,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:58,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:58,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:58,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:58,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:58,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:08:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:58,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:58,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:58,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:58,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:58,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:58,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:03,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:03,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-25 03:09:03,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 03:09:03,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 03:09:03,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:09:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 03:09:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:09:03,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:03,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:03,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:03,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:03,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:05,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 03:09:05,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 03:09:05,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1523 [2020-09-25 03:09:05,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:05,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:09:05,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:05,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:09:05,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:05,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:05,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:05,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:09:05,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:05,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 03:09:05,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:05,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:05,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:05,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:09:05,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:05,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:05,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:05,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:05,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:05,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:09:05,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:09:05,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:05,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:09:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:05,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:05,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:05,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:05,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:09:05,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:05,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:05,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:05,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:09:05,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:05,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 03:09:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:05,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:05,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:05,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:05,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:09:05,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:05,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:05,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:05,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:09:05,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:05,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 03:09:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:05,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:10,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 03:09:10,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 03:09:10,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 03:09:10,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:09:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:09:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 03:09:10,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:10,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:10,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:11,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 03:09:11,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:09:11,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1034 [2020-09-25 03:09:11,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:11,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:09:11,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:11,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:09:11,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:11,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:11,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:11,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:09:11,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:09:11,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 03:09:11,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:11,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:09:11,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:11,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:11,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:11,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:11,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:11,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:09:11,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:11,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:11,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:11,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:09:11,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:11,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:09:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:11,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:11,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:11,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:11,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:09:11,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:11,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:11,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:11,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:09:11,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:11,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 03:09:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:11,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:11,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:11,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:11,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:09:11,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:11,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:11,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:11,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:11,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:11,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 03:09:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:11,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:11,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:11,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:11,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:09:11,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:11,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:11,971 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 156 proven. 143 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-09-25 03:09:11,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055266480] [2020-09-25 03:09:11,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:11,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 03:09:11,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395184291] [2020-09-25 03:09:11,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 03:09:11,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:11,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 03:09:11,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:09:11,975 INFO L87 Difference]: Start difference. First operand 101 states and 148 transitions. Second operand 15 states. [2020-09-25 03:09:12,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:12,180 INFO L93 Difference]: Finished difference Result 155 states and 249 transitions. [2020-09-25 03:09:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 03:09:12,183 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 119 [2020-09-25 03:09:12,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:12,184 INFO L225 Difference]: With dead ends: 155 [2020-09-25 03:09:12,184 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 03:09:12,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:09:12,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 03:09:12,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2020-09-25 03:09:12,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-25 03:09:12,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2020-09-25 03:09:12,195 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 119 [2020-09-25 03:09:12,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:12,195 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2020-09-25 03:09:12,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 03:09:12,196 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2020-09-25 03:09:12,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 03:09:12,197 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:12,197 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:12,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:09:12,198 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:12,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:12,198 INFO L82 PathProgramCache]: Analyzing trace with hash -858055544, now seen corresponding path program 4 times [2020-09-25 03:09:12,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:12,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184648900] [2020-09-25 03:09:12,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:17,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 03:09:17,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 03:09:17,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 03:09:17,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:17,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:09:17,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 03:09:17,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:09:17,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:17,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:17,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:17,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:17,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:17,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:17,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:09:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:17,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:17,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:18,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking...