/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/Addition03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:08:18,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:08:18,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:08:18,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:08:18,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:08:18,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:08:18,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:08:18,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:08:18,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:08:18,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:08:18,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:08:18,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:08:18,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:08:18,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:08:18,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:08:18,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:08:18,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:08:18,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:08:18,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:08:18,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:08:18,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:08:18,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:08:18,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:08:18,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:08:18,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:08:18,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:08:18,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:08:18,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:08:18,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:08:18,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:08:18,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:08:18,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:08:18,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:08:18,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:08:18,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:08:18,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:08:18,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:08:18,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:08:18,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:08:18,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:08:18,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:08:18,745 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 03:08:18,782 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:08:18,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:08:18,784 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:08:18,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:08:18,784 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:08:18,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:08:18,785 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:08:18,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:08:18,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:08:18,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:08:18,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:08:18,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:08:18,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:08:18,786 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:08:18,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:08:18,786 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:08:18,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:08:18,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:08:18,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:08:18,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:08:18,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:08:18,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:08:18,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:08:18,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:08:18,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:08:18,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:08:18,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:08:18,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:08:18,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:08:18,789 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 03:08:19,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:08:19,298 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:08:19,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:08:19,305 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:08:19,307 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:08:19,308 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-25 03:08:19,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6528b8384/2134262502e046359949e2d67317f666/FLAG9135f6367 [2020-09-25 03:08:19,958 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:08:19,959 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-25 03:08:19,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6528b8384/2134262502e046359949e2d67317f666/FLAG9135f6367 [2020-09-25 03:08:20,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6528b8384/2134262502e046359949e2d67317f666 [2020-09-25 03:08:20,319 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:08:20,326 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:08:20,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:08:20,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:08:20,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:08:20,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:08:20" (1/1) ... [2020-09-25 03:08:20,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2234316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:20, skipping insertion in model container [2020-09-25 03:08:20,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:08:20" (1/1) ... [2020-09-25 03:08:20,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:08:20,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:08:20,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:08:20,608 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:08:20,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:08:20,642 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:08:20,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:20 WrapperNode [2020-09-25 03:08:20,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:08:20,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:08:20,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:08:20,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:08:20,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:20" (1/1) ... [2020-09-25 03:08:20,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:20" (1/1) ... [2020-09-25 03:08:20,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:20" (1/1) ... [2020-09-25 03:08:20,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:20" (1/1) ... [2020-09-25 03:08:20,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:20" (1/1) ... [2020-09-25 03:08:20,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:20" (1/1) ... [2020-09-25 03:08:20,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:20" (1/1) ... [2020-09-25 03:08:20,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:08:20,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:08:20,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:08:20,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:08:20,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:20" (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 03:08:20,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:08:20,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:08:20,844 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-09-25 03:08:20,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:08:20,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:08:20,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:08:20,844 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-09-25 03:08:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:08:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:08:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:08:21,067 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:08:21,067 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:08:21,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:08:21 BoogieIcfgContainer [2020-09-25 03:08:21,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:08:21,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:08:21,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:08:21,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:08:21,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:08:20" (1/3) ... [2020-09-25 03:08:21,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d689f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:08:21, skipping insertion in model container [2020-09-25 03:08:21,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:20" (2/3) ... [2020-09-25 03:08:21,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d689f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:08:21, skipping insertion in model container [2020-09-25 03:08:21,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:08:21" (3/3) ... [2020-09-25 03:08:21,082 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2020-09-25 03:08:21,094 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:08:21,105 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:08:21,128 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:08:21,160 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:08:21,160 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:08:21,161 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:08:21,161 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:08:21,161 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:08:21,161 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:08:21,161 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:08:21,162 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:08:21,186 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-09-25 03:08:21,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 03:08:21,196 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:21,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:21,198 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:21,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:21,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1218957033, now seen corresponding path program 1 times [2020-09-25 03:08:21,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:21,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401073010] [2020-09-25 03:08:21,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:21,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:21,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:21,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:08:21,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:21,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-25 03:08:21,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:21,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:21,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:08:21,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:08:21,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:08:21,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:21,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:21,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:21,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:21,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:21,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:08:21,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:21,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:21,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:21,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:21,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:21,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:21,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:21,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:21,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:21,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:21,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 03:08:21,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:21,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:21,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:21,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:21,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:21,769 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 03:08:21,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401073010] [2020-09-25 03:08:21,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:08:21,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:08:21,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858045548] [2020-09-25 03:08:21,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:08:21,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:21,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:08:21,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:08:21,800 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 5 states. [2020-09-25 03:08:21,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:21,959 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2020-09-25 03:08:21,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:08:21,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-09-25 03:08:21,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:21,978 INFO L225 Difference]: With dead ends: 53 [2020-09-25 03:08:21,979 INFO L226 Difference]: Without dead ends: 35 [2020-09-25 03:08:21,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:08:22,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-25 03:08:22,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-25 03:08:22,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 03:08:22,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2020-09-25 03:08:22,057 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 22 [2020-09-25 03:08:22,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:22,058 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2020-09-25 03:08:22,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:08:22,059 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2020-09-25 03:08:22,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 03:08:22,062 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:22,062 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:22,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:08:22,063 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:22,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:22,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1438677315, now seen corresponding path program 1 times [2020-09-25 03:08:22,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:22,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11467488] [2020-09-25 03:08:22,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:22,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:22,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:22,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 03:08:22,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:22,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-25 03:08:22,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:22,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:22,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:08:22,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:08:22,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:22,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:22,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:22,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:22,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:22,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:22,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:08:22,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:22,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:22,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:22,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:22,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:22,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:22,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:22,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:22,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 03:08:22,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:22,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 03:08:22,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:22,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:22,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:22,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:08:22,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:22,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:22,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:22,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:22,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:22,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:22,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:08:22,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:22,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:22,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:22,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:22,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:22,599 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:08:22,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11467488] [2020-09-25 03:08:22,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:22,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 03:08:22,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921199655] [2020-09-25 03:08:22,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 03:08:22,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:22,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 03:08:22,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:08:22,606 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 6 states. [2020-09-25 03:08:22,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:22,719 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2020-09-25 03:08:22,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:08:22,720 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-09-25 03:08:22,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:22,722 INFO L225 Difference]: With dead ends: 46 [2020-09-25 03:08:22,722 INFO L226 Difference]: Without dead ends: 40 [2020-09-25 03:08:22,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:08:22,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-25 03:08:22,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-25 03:08:22,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 03:08:22,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-09-25 03:08:22,734 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 32 [2020-09-25 03:08:22,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:22,734 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-09-25 03:08:22,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 03:08:22,735 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-09-25 03:08:22,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 03:08:22,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:22,737 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:22,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:08:22,738 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:22,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:22,738 INFO L82 PathProgramCache]: Analyzing trace with hash 967575145, now seen corresponding path program 2 times [2020-09-25 03:08:22,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:22,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161163022] [2020-09-25 03:08:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:22,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:22,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:22,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:08:22,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:22,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-25 03:08:22,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:22,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:08:22,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:08:22,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:08:22,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:23,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:23,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:23,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:23,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:23,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:23,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:23,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:23,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:23,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:23,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:23,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:23,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:08:23,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:23,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 03:08:23,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:08:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:23,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:08:23,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:23,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:23,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:23,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:23,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 03:08:23,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:23,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 03:08:23,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:23,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:23,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:23,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:08:23,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:23,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:23,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:23,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:23,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:23,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:23,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:08:23,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:23,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:23,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:23,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:23,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:23,329 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 03:08:23,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161163022] [2020-09-25 03:08:23,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:23,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 03:08:23,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175183303] [2020-09-25 03:08:23,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:08:23,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:23,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:08:23,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:08:23,333 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 8 states. [2020-09-25 03:08:23,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:23,503 INFO L93 Difference]: Finished difference Result 87 states and 113 transitions. [2020-09-25 03:08:23,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 03:08:23,510 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-09-25 03:08:23,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:23,512 INFO L225 Difference]: With dead ends: 87 [2020-09-25 03:08:23,512 INFO L226 Difference]: Without dead ends: 54 [2020-09-25 03:08:23,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:08:23,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-25 03:08:23,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-25 03:08:23,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 03:08:23,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2020-09-25 03:08:23,532 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 42 [2020-09-25 03:08:23,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:23,532 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2020-09-25 03:08:23,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:08:23,533 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2020-09-25 03:08:23,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 03:08:23,535 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:23,535 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:23,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:08:23,536 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:23,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:23,536 INFO L82 PathProgramCache]: Analyzing trace with hash -321617853, now seen corresponding path program 3 times [2020-09-25 03:08:23,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:23,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001311122] [2020-09-25 03:08:23,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:23,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:23,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:23,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 03:08:23,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:23,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-25 03:08:23,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:23,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:08:23,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:08:23,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 03:08:23,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:23,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:23,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:23,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:23,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:23,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:23,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:23,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:23,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:23,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:23,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:24,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:24,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 03:08:24,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:24,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-25 03:08:24,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:24,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:08:24,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:24,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 03:08:24,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:24,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:24,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:24,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:24,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:08:24,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:24,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 03:08:24,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:24,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:08:24,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:24,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:08:24,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:24,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:24,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:24,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:24,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 03:08:24,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:24,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 03:08:24,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:08:24,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:24,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:24,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:24,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:24,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:24,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:24,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:08:24,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:24,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:24,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:24,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:24,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:24,361 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 03:08:24,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1001311122] [2020-09-25 03:08:24,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:24,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 03:08:24,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970564397] [2020-09-25 03:08:24,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:08:24,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:24,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:08:24,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:08:24,364 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 9 states. [2020-09-25 03:08:24,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:24,544 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2020-09-25 03:08:24,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 03:08:24,545 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2020-09-25 03:08:24,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:24,547 INFO L225 Difference]: With dead ends: 65 [2020-09-25 03:08:24,548 INFO L226 Difference]: Without dead ends: 59 [2020-09-25 03:08:24,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 03:08:24,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-25 03:08:24,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-25 03:08:24,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-25 03:08:24,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2020-09-25 03:08:24,559 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 52 [2020-09-25 03:08:24,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:24,560 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2020-09-25 03:08:24,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:08:24,560 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2020-09-25 03:08:24,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 03:08:24,562 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:24,562 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:24,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:08:24,563 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:24,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:24,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1776668137, now seen corresponding path program 4 times [2020-09-25 03:08:24,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:24,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [740075462] [2020-09-25 03:08:24,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:24,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:24,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:24,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 03:08:24,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:24,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-09-25 03:08:24,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:08:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:08:24,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 03:08:24,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:24,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:24,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:24,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:24,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:24,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:24,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:24,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:24,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:24,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:24,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:25,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:25,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 03:08:25,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:25,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 03:08:25,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:25,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:08:25,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:25,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 03:08:25,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:25,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:25,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:25,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:25,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 03:08:25,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:25,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-25 03:08:25,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:25,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:08:25,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:25,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 03:08:25,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:25,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:25,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:25,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:25,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:08:25,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:25,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 03:08:25,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:25,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:08:25,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:25,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:08:25,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:25,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:25,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:25,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:25,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 03:08:25,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:25,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 03:08:25,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:08:25,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:25,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:25,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:25,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:25,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:25,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:25,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:08:25,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:25,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:25,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:25,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:25,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:25,636 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-09-25 03:08:25,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [740075462] [2020-09-25 03:08:25,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:25,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 03:08:25,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176506266] [2020-09-25 03:08:25,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:08:25,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:25,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:08:25,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:08:25,639 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand 9 states. [2020-09-25 03:08:25,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:25,808 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2020-09-25 03:08:25,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 03:08:25,808 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-09-25 03:08:25,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:25,811 INFO L225 Difference]: With dead ends: 87 [2020-09-25 03:08:25,811 INFO L226 Difference]: Without dead ends: 81 [2020-09-25 03:08:25,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:08:25,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-25 03:08:25,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 71. [2020-09-25 03:08:25,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-25 03:08:25,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions. [2020-09-25 03:08:25,825 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 83 transitions. Word has length 62 [2020-09-25 03:08:25,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:25,825 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 83 transitions. [2020-09-25 03:08:25,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:08:25,826 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 83 transitions. [2020-09-25 03:08:25,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 03:08:25,828 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:25,828 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:25,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:08:25,829 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:25,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:25,829 INFO L82 PathProgramCache]: Analyzing trace with hash 318406209, now seen corresponding path program 1 times [2020-09-25 03:08:25,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:25,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1238209387] [2020-09-25 03:08:25,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:25,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:25,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:25,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:26,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:26,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:26,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:28,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 03:08:28,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:08:28,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2581 [2020-09-25 03:08:28,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:28,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:08:28,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:08:28,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 03:08:28,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:28,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:28,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:28,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:28,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:28,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:28,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:28,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:28,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:28,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:28,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:28,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:28,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:30,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:08:30,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:08:30,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1971 [2020-09-25 03:08:30,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:30,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:08:30,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:30,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:08:30,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:30,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:30,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:31,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 03:08:31,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:08:31,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1227 [2020-09-25 03:08:31,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:31,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:08:31,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:31,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:08:31,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:31,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:31,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:32,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 03:08:32,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:08:32,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 481 [2020-09-25 03:08:32,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:32,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:08:32,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:32,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 03:08:32,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:32,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:32,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:32,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:08:32,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:08:32,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 03:08:32,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:32,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:32,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:32,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 03:08:32,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:32,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:32,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:32,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:08:32,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:32,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:08:32,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:08:32,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:32,489 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-09-25 03:08:32,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1238209387] [2020-09-25 03:08:32,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:32,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 03:08:32,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993336838] [2020-09-25 03:08:32,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:08:32,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:32,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:08:32,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:08:32,492 INFO L87 Difference]: Start difference. First operand 71 states and 83 transitions. Second operand 10 states. [2020-09-25 03:08:32,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:32,690 INFO L93 Difference]: Finished difference Result 92 states and 104 transitions. [2020-09-25 03:08:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 03:08:32,691 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-09-25 03:08:32,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:32,693 INFO L225 Difference]: With dead ends: 92 [2020-09-25 03:08:32,693 INFO L226 Difference]: Without dead ends: 86 [2020-09-25 03:08:32,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:08:32,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-25 03:08:32,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 64. [2020-09-25 03:08:32,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-09-25 03:08:32,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2020-09-25 03:08:32,704 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 63 [2020-09-25 03:08:32,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:32,704 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2020-09-25 03:08:32,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:08:32,705 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2020-09-25 03:08:32,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 03:08:32,706 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:32,706 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:32,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:08:32,707 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:32,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:32,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1043024061, now seen corresponding path program 5 times [2020-09-25 03:08:32,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:32,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259908862] [2020-09-25 03:08:32,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:32,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:33,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:33,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:08:33,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:33,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-09-25 03:08:33,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:08:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:08:33,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 03:08:33,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:33,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:33,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:33,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:33,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:33,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:33,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:33,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:33,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:33,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:33,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:33,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:33,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:33,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:33,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:33,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 03:08:33,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:33,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-25 03:08:33,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:33,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:08:33,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:08:33,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:33,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:33,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:33,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:33,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 03:08:33,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:33,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 03:08:33,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:08:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 03:08:33,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:33,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:33,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:33,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:33,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 03:08:33,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:33,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-25 03:08:33,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:33,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:08:33,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:33,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 03:08:33,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:33,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:33,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:33,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:33,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:08:33,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:33,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 03:08:33,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:33,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:08:33,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:33,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:08:33,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:33,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:33,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:34,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:34,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 03:08:34,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:34,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 03:08:34,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:34,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:08:34,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:34,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:34,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:34,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:34,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:34,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:34,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:08:34,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:34,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:34,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:34,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:34,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:34,114 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 63 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-09-25 03:08:34,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259908862] [2020-09-25 03:08:34,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:34,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:08:34,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472185260] [2020-09-25 03:08:34,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:08:34,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:34,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:08:34,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:08:34,116 INFO L87 Difference]: Start difference. First operand 64 states and 73 transitions. Second operand 11 states. [2020-09-25 03:08:34,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:34,283 INFO L93 Difference]: Finished difference Result 97 states and 109 transitions. [2020-09-25 03:08:34,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:08:34,284 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 72 [2020-09-25 03:08:34,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:34,285 INFO L225 Difference]: With dead ends: 97 [2020-09-25 03:08:34,285 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 03:08:34,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:08:34,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 03:08:34,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 76. [2020-09-25 03:08:34,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-25 03:08:34,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2020-09-25 03:08:34,296 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 72 [2020-09-25 03:08:34,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:34,297 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2020-09-25 03:08:34,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:08:34,297 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2020-09-25 03:08:34,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-25 03:08:34,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:34,299 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:34,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:08:34,299 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:34,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:34,300 INFO L82 PathProgramCache]: Analyzing trace with hash 2031082653, now seen corresponding path program 2 times [2020-09-25 03:08:34,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:34,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742247188] [2020-09-25 03:08:34,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:34,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:34,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:34,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:34,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:34,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:34,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:37,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:37,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 03:08:37,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:08:37,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3666 [2020-09-25 03:08:37,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:08:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:08:37,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 03:08:37,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:38,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:38,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:38,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:38,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:38,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:38,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:08:38,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:38,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:38,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:38,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:08:38,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:38,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:38,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:38,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:38,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:38,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:38,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:39,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:41,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 03:08:41,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:08:41,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3312 [2020-09-25 03:08:41,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:41,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:08:41,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:41,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 03:08:41,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:41,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:41,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:42,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:43,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 03:08:43,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:08:43,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1733 [2020-09-25 03:08:43,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:43,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:08:43,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:43,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:08:43,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:43,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:43,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:44,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 03:08:44,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:08:44,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 880 [2020-09-25 03:08:44,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:44,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:08:44,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:44,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 03:08:44,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:44,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:44,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:44,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 03:08:44,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:08:44,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-09-25 03:08:44,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:44,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:08:44,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:44,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 03:08:44,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:44,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:44,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:44,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:08:44,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:08:44,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 03:08:44,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:44,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 03:08:44,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:44,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:44,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:44,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 03:08:44,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:44,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:08:44,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:44,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:44,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:44,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:08:44,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 9 proven. 65 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-09-25 03:08:44,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1742247188] [2020-09-25 03:08:44,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:44,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:08:44,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598663358] [2020-09-25 03:08:44,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:08:44,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:44,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:08:44,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:08:44,709 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand 11 states. [2020-09-25 03:08:44,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:44,900 INFO L93 Difference]: Finished difference Result 102 states and 114 transitions. [2020-09-25 03:08:44,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:08:44,901 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2020-09-25 03:08:44,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:44,903 INFO L225 Difference]: With dead ends: 102 [2020-09-25 03:08:44,903 INFO L226 Difference]: Without dead ends: 96 [2020-09-25 03:08:44,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:08:44,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-09-25 03:08:44,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 69. [2020-09-25 03:08:44,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-25 03:08:44,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2020-09-25 03:08:44,912 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 73 [2020-09-25 03:08:44,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:44,912 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2020-09-25 03:08:44,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:08:44,913 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2020-09-25 03:08:44,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-25 03:08:44,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:44,914 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:44,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:08:44,914 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:44,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:44,915 INFO L82 PathProgramCache]: Analyzing trace with hash -473356951, now seen corresponding path program 6 times [2020-09-25 03:08:44,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:44,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875465880] [2020-09-25 03:08:44,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:44,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:45,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-09-25 03:08:45,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:45,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 436 [2020-09-25 03:08:45,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:45,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:08:45,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:08:45,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 03:08:45,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:45,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:45,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:45,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:45,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:45,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:45,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:45,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:45,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:45,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:45,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:45,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:45,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:45,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 03:08:45,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:45,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-09-25 03:08:45,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:45,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:08:45,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:45,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 03:08:45,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:45,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:45,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:46,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 03:08:46,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:46,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-09-25 03:08:46,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:46,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:08:46,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:46,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:08:46,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:46,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:46,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:46,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 03:08:46,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:46,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-25 03:08:46,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:46,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:08:46,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:46,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 03:08:46,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:46,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:46,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:46,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 03:08:46,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:46,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 03:08:46,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:46,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:08:46,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 03:08:46,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:46,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:46,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:46,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:08:46,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:46,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 03:08:46,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:46,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:08:46,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:46,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:08:46,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:46,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:46,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:46,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 03:08:46,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:46,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 03:08:46,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:46,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:46,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:46,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:08:46,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:46,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:46,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:46,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:46,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:46,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:08:46,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:46,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:46,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:46,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:46,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:46,736 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 3 proven. 110 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-25 03:08:46,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875465880] [2020-09-25 03:08:46,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:46,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 03:08:46,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649881721] [2020-09-25 03:08:46,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 03:08:46,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:46,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 03:08:46,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:08:46,739 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand 12 states. [2020-09-25 03:08:46,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:46,927 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2020-09-25 03:08:46,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 03:08:46,928 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2020-09-25 03:08:46,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:46,929 INFO L225 Difference]: With dead ends: 80 [2020-09-25 03:08:46,929 INFO L226 Difference]: Without dead ends: 74 [2020-09-25 03:08:46,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:08:46,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-25 03:08:46,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-25 03:08:46,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-25 03:08:46,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2020-09-25 03:08:46,936 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 82 [2020-09-25 03:08:46,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:46,937 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2020-09-25 03:08:46,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 03:08:46,937 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2020-09-25 03:08:46,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-09-25 03:08:46,938 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:46,938 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:46,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 03:08:46,939 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:46,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:46,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1366105667, now seen corresponding path program 7 times [2020-09-25 03:08:46,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:46,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399945590] [2020-09-25 03:08:46,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:46,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:47,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 03:08:47,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:47,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-09-25 03:08:47,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:47,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 03:08:47,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:08:47,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 03:08:47,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:47,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:47,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:47,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:47,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:47,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:47,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:47,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:47,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:47,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:47,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:47,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:47,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:47,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 03:08:47,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:47,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-09-25 03:08:47,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 03:08:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 03:08:47,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:48,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:48,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:48,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:48,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 03:08:48,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:48,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-09-25 03:08:48,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:48,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:08:48,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:48,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 03:08:48,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:48,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:48,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:48,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:48,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 03:08:48,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:48,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-25 03:08:48,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:48,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:08:48,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:48,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:08:48,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:48,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:48,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:48,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:48,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 03:08:48,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:48,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-25 03:08:48,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:48,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:08:48,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:48,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 03:08:48,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:48,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:48,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:49,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 03:08:49,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:49,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 03:08:49,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:08:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:49,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 03:08:49,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:49,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:49,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:49,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:08:49,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:49,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 03:08:49,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:49,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:08:49,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:49,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:08:49,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:49,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:49,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:49,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 03:08:49,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:49,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 03:08:49,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:49,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:49,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:49,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:08:49,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:49,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:49,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:49,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:49,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:49,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:08:49,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:49,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:49,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:49,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:49,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:49,308 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 24 proven. 134 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-09-25 03:08:49,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399945590] [2020-09-25 03:08:49,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:49,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 03:08:49,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456877223] [2020-09-25 03:08:49,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 03:08:49,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:49,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 03:08:49,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 03:08:49,311 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand 13 states. [2020-09-25 03:08:49,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:49,476 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2020-09-25 03:08:49,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 03:08:49,477 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2020-09-25 03:08:49,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:49,478 INFO L225 Difference]: With dead ends: 85 [2020-09-25 03:08:49,478 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 03:08:49,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-25 03:08:49,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 03:08:49,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-09-25 03:08:49,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 03:08:49,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2020-09-25 03:08:49,485 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 92 [2020-09-25 03:08:49,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:49,486 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2020-09-25 03:08:49,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 03:08:49,486 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2020-09-25 03:08:49,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-25 03:08:49,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:49,487 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:49,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 03:08:49,488 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:49,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:49,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1932915479, now seen corresponding path program 8 times [2020-09-25 03:08:49,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:49,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883061056] [2020-09-25 03:08:49,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:49,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:50,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-25 03:08:50,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:50,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-09-25 03:08:50,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:50,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 03:08:50,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:08:50,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 03:08:50,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:50,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:50,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:50,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:50,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:50,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:50,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:50,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:50,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:50,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:50,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:50,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 03:08:50,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:50,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-09-25 03:08:50,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:50,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 03:08:50,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:50,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 03:08:50,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:50,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:50,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:51,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 03:08:51,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:51,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-09-25 03:08:51,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:51,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:08:51,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 03:08:51,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:51,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:51,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:51,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 03:08:51,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:51,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-25 03:08:51,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:51,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:08:51,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:51,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 03:08:51,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:51,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:51,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:51,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 03:08:51,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:51,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 03:08:51,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:51,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:08:51,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:51,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:08:51,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:51,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:51,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:51,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 03:08:51,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:51,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-25 03:08:51,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:51,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:08:51,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:51,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 03:08:51,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:51,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:51,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:52,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:52,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 03:08:52,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:52,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 03:08:52,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:52,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:08:52,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:52,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 03:08:52,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:52,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:52,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:52,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:52,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:08:52,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:52,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 03:08:52,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:52,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:08:52,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:52,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:08:52,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:52,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:52,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:52,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:52,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 03:08:52,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:52,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 03:08:52,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:52,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:52,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:52,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:08:52,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:52,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:52,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:52,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:52,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:52,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:52,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:08:52,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:52,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:52,242 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 30 proven. 164 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-25 03:08:52,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883061056] [2020-09-25 03:08:52,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:52,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 03:08:52,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009417182] [2020-09-25 03:08:52,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:08:52,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:52,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:08:52,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:08:52,245 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand 14 states. [2020-09-25 03:08:52,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:52,464 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2020-09-25 03:08:52,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:08:52,465 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 102 [2020-09-25 03:08:52,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:52,466 INFO L225 Difference]: With dead ends: 90 [2020-09-25 03:08:52,466 INFO L226 Difference]: Without dead ends: 84 [2020-09-25 03:08:52,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-09-25 03:08:52,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-25 03:08:52,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-09-25 03:08:52,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-25 03:08:52,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 93 transitions. [2020-09-25 03:08:52,474 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 93 transitions. Word has length 102 [2020-09-25 03:08:52,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:52,474 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 93 transitions. [2020-09-25 03:08:52,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 03:08:52,474 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2020-09-25 03:08:52,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 03:08:52,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:52,476 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:52,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 03:08:52,476 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:52,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:52,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1924549309, now seen corresponding path program 9 times [2020-09-25 03:08:52,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:52,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587509091] [2020-09-25 03:08:52,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:52,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:53,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-25 03:08:53,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:53,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 660 [2020-09-25 03:08:53,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 03:08:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:08:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-25 03:08:53,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:53,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:53,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:53,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:53,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:53,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:53,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:53,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:53,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:53,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:53,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 03:08:53,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:53,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 676 [2020-09-25 03:08:53,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:53,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 03:08:53,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:53,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 03:08:53,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:53,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:53,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:54,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:54,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-25 03:08:54,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:54,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 517 [2020-09-25 03:08:54,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:08:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 03:08:54,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:54,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:54,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:54,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:54,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 03:08:54,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:54,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-09-25 03:08:54,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:08:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 03:08:54,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:54,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:54,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:55,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 03:08:55,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:55,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-09-25 03:08:55,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:55,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:08:55,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:55,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 03:08:55,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:55,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:55,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:55,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 03:08:55,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:55,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 03:08:55,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:55,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:08:55,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:55,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 03:08:55,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:55,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:55,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:55,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 03:08:55,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:55,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-25 03:08:55,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:55,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:08:55,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:55,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 03:08:55,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:55,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:55,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:55,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 03:08:55,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:55,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 03:08:55,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:08:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:55,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 03:08:55,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:55,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:55,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:55,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:08:55,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:55,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 03:08:55,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:55,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:08:55,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:55,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:08:55,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:55,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:55,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:55,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 03:08:55,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:55,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 03:08:55,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:55,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:55,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:08:55,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:56,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:08:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:56,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:56,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:56,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:56,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:08:56,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:56,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:56,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:56,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:56,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:56,113 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 14 proven. 261 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2020-09-25 03:08:56,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587509091] [2020-09-25 03:08:56,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:56,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 03:08:56,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016893354] [2020-09-25 03:08:56,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 03:08:56,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:56,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 03:08:56,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:08:56,115 INFO L87 Difference]: Start difference. First operand 84 states and 93 transitions. Second operand 16 states. [2020-09-25 03:08:56,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:56,348 INFO L93 Difference]: Finished difference Result 137 states and 149 transitions. [2020-09-25 03:08:56,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 03:08:56,349 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 112 [2020-09-25 03:08:56,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:56,350 INFO L225 Difference]: With dead ends: 137 [2020-09-25 03:08:56,350 INFO L226 Difference]: Without dead ends: 131 [2020-09-25 03:08:56,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=421, Unknown=0, NotChecked=0, Total=650 [2020-09-25 03:08:56,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-09-25 03:08:56,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 96. [2020-09-25 03:08:56,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-25 03:08:56,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 108 transitions. [2020-09-25 03:08:56,358 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 108 transitions. Word has length 112 [2020-09-25 03:08:56,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:56,359 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 108 transitions. [2020-09-25 03:08:56,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 03:08:56,359 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 108 transitions. [2020-09-25 03:08:56,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-09-25 03:08:56,360 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:56,360 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:56,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 03:08:56,361 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:56,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:56,361 INFO L82 PathProgramCache]: Analyzing trace with hash 945507101, now seen corresponding path program 3 times [2020-09-25 03:08:56,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:56,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [177981213] [2020-09-25 03:08:56,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:56,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:01,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 03:09:01,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 03:09:01,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 03:09:01,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:01,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 03:09:01,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:09:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 03:09:01,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:01,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:01,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:01,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:01,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:01,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:09:01,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:01,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:01,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:09:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:01,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:06,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 03:09:06,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 03:09:06,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 03:09:06,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:06,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 03:09:06,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:09:06,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 03:09:06,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:06,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:09:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:06,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking...