/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 13:54:54,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 13:54:54,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 13:54:54,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 13:54:54,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 13:54:54,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 13:54:54,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 13:54:54,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 13:54:54,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 13:54:54,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 13:54:54,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 13:54:54,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 13:54:54,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 13:54:54,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 13:54:54,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 13:54:54,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 13:54:54,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 13:54:54,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 13:54:54,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 13:54:54,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 13:54:54,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 13:54:54,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 13:54:54,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 13:54:54,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 13:54:54,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 13:54:54,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 13:54:54,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 13:54:54,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 13:54:54,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 13:54:54,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 13:54:54,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 13:54:54,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 13:54:54,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 13:54:54,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 13:54:54,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 13:54:54,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 13:54:54,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 13:54:54,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 13:54:54,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 13:54:54,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 13:54:54,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 13:54:54,994 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 [2020-10-28 13:54:55,047 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 13:54:55,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 13:54:55,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 13:54:55,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 13:54:55,052 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 13:54:55,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 13:54:55,052 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 13:54:55,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 13:54:55,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 13:54:55,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 13:54:55,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 13:54:55,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 13:54:55,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 13:54:55,055 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 13:54:55,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 13:54:55,055 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 13:54:55,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 13:54:55,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 13:54:55,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 13:54:55,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 13:54:55,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 13:54:55,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 13:54:55,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 13:54:55,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 13:54:55,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 13:54:55,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 13:54:55,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 13:54:55,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 13:54:55,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 13:54:55,058 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 13:54:55,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 13:54:55,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 13:54:55,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 13:54:55,501 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 13:54:55,502 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 13:54:55,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label34.c [2020-10-28 13:54:55,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc94745f5/6a39e2d66d474ea0aab308a7f59469ed/FLAG3ef2d24e3 [2020-10-28 13:54:56,512 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 13:54:56,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label34.c [2020-10-28 13:54:56,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc94745f5/6a39e2d66d474ea0aab308a7f59469ed/FLAG3ef2d24e3 [2020-10-28 13:54:56,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc94745f5/6a39e2d66d474ea0aab308a7f59469ed [2020-10-28 13:54:56,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 13:54:56,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 13:54:56,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 13:54:56,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 13:54:56,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 13:54:56,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 01:54:56" (1/1) ... [2020-10-28 13:54:56,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2228acf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:56, skipping insertion in model container [2020-10-28 13:54:56,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 01:54:56" (1/1) ... [2020-10-28 13:54:56,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 13:54:56,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 13:54:57,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 13:54:57,869 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 13:54:58,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 13:54:58,428 INFO L208 MainTranslator]: Completed translation [2020-10-28 13:54:58,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:58 WrapperNode [2020-10-28 13:54:58,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 13:54:58,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 13:54:58,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 13:54:58,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 13:54:58,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:58" (1/1) ... [2020-10-28 13:54:58,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:58" (1/1) ... [2020-10-28 13:54:58,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:58" (1/1) ... [2020-10-28 13:54:58,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:58" (1/1) ... [2020-10-28 13:54:58,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:58" (1/1) ... [2020-10-28 13:54:58,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:58" (1/1) ... [2020-10-28 13:54:58,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:58" (1/1) ... [2020-10-28 13:54:58,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 13:54:58,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 13:54:58,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 13:54:58,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 13:54:58,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:58" (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 [2020-10-28 13:54:58,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 13:54:58,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 13:54:58,854 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 13:54:58,854 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 13:54:58,854 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-28 13:54:58,854 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-28 13:54:58,854 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 13:54:58,855 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 13:54:58,855 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-28 13:54:58,855 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-28 13:54:58,855 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 13:54:58,855 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 13:54:58,855 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 13:54:58,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 13:54:58,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 13:54:58,856 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 13:54:58,856 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 13:54:58,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 13:54:58,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 13:54:58,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 13:54:58,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 13:54:58,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 13:54:58,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 13:55:02,754 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 13:55:02,755 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 13:55:02,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 01:55:02 BoogieIcfgContainer [2020-10-28 13:55:02,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 13:55:02,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 13:55:02,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 13:55:02,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 13:55:02,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 01:54:56" (1/3) ... [2020-10-28 13:55:02,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611d6e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 01:55:02, skipping insertion in model container [2020-10-28 13:55:02,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:58" (2/3) ... [2020-10-28 13:55:02,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611d6e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 01:55:02, skipping insertion in model container [2020-10-28 13:55:02,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 01:55:02" (3/3) ... [2020-10-28 13:55:02,771 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem18_label34.c [2020-10-28 13:55:02,785 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 13:55:02,792 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 13:55:02,808 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 13:55:02,861 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 13:55:02,861 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 13:55:02,862 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 13:55:02,862 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 13:55:02,862 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 13:55:02,862 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 13:55:02,862 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 13:55:02,862 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 13:55:02,910 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states. [2020-10-28 13:55:02,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-28 13:55:02,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:55:02,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:55:02,920 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:55:02,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:55:02,929 INFO L82 PathProgramCache]: Analyzing trace with hash -705368896, now seen corresponding path program 1 times [2020-10-28 13:55:02,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:55:02,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703928138] [2020-10-28 13:55:02,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:55:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:03,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:03,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:03,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 13:55:03,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:03,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-28 13:55:03,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:03,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:03,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:55:03,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:55:03,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 13:55:03,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 13:55:03,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:55:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:03,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:03,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:03,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:55:03,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:03,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 13:55:03,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:03,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:03,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:55:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:03,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:55:03,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:55:03,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:55:03,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [703928138] [2020-10-28 13:55:03,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:55:03,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 13:55:03,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233849504] [2020-10-28 13:55:03,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 13:55:03,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:55:03,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 13:55:03,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 13:55:03,759 INFO L87 Difference]: Start difference. First operand 778 states. Second operand 4 states. [2020-10-28 13:55:12,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:55:12,123 INFO L93 Difference]: Finished difference Result 2275 states and 4355 transitions. [2020-10-28 13:55:12,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:55:12,126 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-28 13:55:12,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:55:12,171 INFO L225 Difference]: With dead ends: 2275 [2020-10-28 13:55:12,172 INFO L226 Difference]: Without dead ends: 1433 [2020-10-28 13:55:12,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 13:55:12,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2020-10-28 13:55:12,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1426. [2020-10-28 13:55:12,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2020-10-28 13:55:12,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2230 transitions. [2020-10-28 13:55:12,403 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2230 transitions. Word has length 14 [2020-10-28 13:55:12,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:55:12,404 INFO L481 AbstractCegarLoop]: Abstraction has 1426 states and 2230 transitions. [2020-10-28 13:55:12,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 13:55:12,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2230 transitions. [2020-10-28 13:55:12,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-28 13:55:12,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:55:12,409 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:55:12,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 13:55:12,410 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:55:12,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:55:12,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1413145976, now seen corresponding path program 1 times [2020-10-28 13:55:12,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:55:12,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592519470] [2020-10-28 13:55:12,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:55:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:12,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:12,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:13,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:13,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 13:55:13,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:55:13,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 989 [2020-10-28 13:55:13,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:13,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:13,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:55:13,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:55:13,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 13:55:13,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 13:55:13,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:55:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:13,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:13,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:13,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:55:13,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:13,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 13:55:13,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:13,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:13,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:55:13,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:13,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:55:13,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:55:13,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:55:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:13,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:13,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:13,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 13:55:13,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:13,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-28 13:55:13,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:13,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:13,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:55:13,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:55:13,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 13:55:13,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:13,856 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:55:13,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592519470] [2020-10-28 13:55:13,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:55:13,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 13:55:13,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800370983] [2020-10-28 13:55:13,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:55:13,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:55:13,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:55:13,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:55:13,863 INFO L87 Difference]: Start difference. First operand 1426 states and 2230 transitions. Second operand 7 states. [2020-10-28 13:55:23,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:55:23,558 INFO L93 Difference]: Finished difference Result 4328 states and 6805 transitions. [2020-10-28 13:55:23,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:55:23,559 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-10-28 13:55:23,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:55:23,577 INFO L225 Difference]: With dead ends: 4328 [2020-10-28 13:55:23,578 INFO L226 Difference]: Without dead ends: 2908 [2020-10-28 13:55:23,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:55:23,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2020-10-28 13:55:23,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2873. [2020-10-28 13:55:23,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2873 states. [2020-10-28 13:55:23,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 3870 transitions. [2020-10-28 13:55:23,688 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 3870 transitions. Word has length 84 [2020-10-28 13:55:23,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:55:23,689 INFO L481 AbstractCegarLoop]: Abstraction has 2873 states and 3870 transitions. [2020-10-28 13:55:23,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:55:23,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 3870 transitions. [2020-10-28 13:55:23,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-28 13:55:23,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:55:23,693 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:55:23,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 13:55:23,693 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:55:23,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:55:23,694 INFO L82 PathProgramCache]: Analyzing trace with hash -269529120, now seen corresponding path program 1 times [2020-10-28 13:55:23,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:55:23,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378875009] [2020-10-28 13:55:23,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:55:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:23,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:23,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:24,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:24,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 13:55:24,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:55:24,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1022 [2020-10-28 13:55:24,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:24,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:24,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:55:24,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:55:24,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 13:55:24,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 13:55:24,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:55:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:24,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:24,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:24,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:55:24,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:24,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 13:55:24,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:24,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:24,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:55:24,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:24,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:55:24,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:24,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:55:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:24,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:25,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:25,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 13:55:25,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:25,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-28 13:55:25,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:25,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:55:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:55:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 13:55:25,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:25,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:55:25,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378875009] [2020-10-28 13:55:25,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:55:25,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 13:55:25,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389527504] [2020-10-28 13:55:25,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:55:25,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:55:25,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:55:25,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:55:25,138 INFO L87 Difference]: Start difference. First operand 2873 states and 3870 transitions. Second operand 7 states. [2020-10-28 13:55:35,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:55:35,617 INFO L93 Difference]: Finished difference Result 8776 states and 11978 transitions. [2020-10-28 13:55:35,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 13:55:35,618 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-28 13:55:35,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:55:35,654 INFO L225 Difference]: With dead ends: 8776 [2020-10-28 13:55:35,654 INFO L226 Difference]: Without dead ends: 5909 [2020-10-28 13:55:35,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:55:35,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5909 states. [2020-10-28 13:55:35,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5909 to 5838. [2020-10-28 13:55:35,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5838 states. [2020-10-28 13:55:35,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5838 states to 5838 states and 7274 transitions. [2020-10-28 13:55:35,879 INFO L78 Accepts]: Start accepts. Automaton has 5838 states and 7274 transitions. Word has length 104 [2020-10-28 13:55:35,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:55:35,881 INFO L481 AbstractCegarLoop]: Abstraction has 5838 states and 7274 transitions. [2020-10-28 13:55:35,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:55:35,885 INFO L276 IsEmpty]: Start isEmpty. Operand 5838 states and 7274 transitions. [2020-10-28 13:55:35,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-28 13:55:35,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:55:35,902 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:55:35,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 13:55:35,903 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:55:35,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:55:35,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1246239850, now seen corresponding path program 1 times [2020-10-28 13:55:35,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:55:35,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153099084] [2020-10-28 13:55:35,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:55:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:36,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:36,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:36,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:38,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:38,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-28 13:55:38,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:55:38,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2876 [2020-10-28 13:55:38,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:38,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:38,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:55:38,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:55:38,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 13:55:38,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:38,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:55:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:38,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:38,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:38,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:55:38,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:38,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 13:55:38,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:38,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:38,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:55:38,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:38,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:55:38,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:38,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:55:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:39,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:39,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:39,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 13:55:39,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:39,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-28 13:55:39,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:39,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:39,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:55:39,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:55:39,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-28 13:55:39,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 13:55:39,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-28 13:55:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:39,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:39,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:39,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 13:55:39,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:39,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 13:55:39,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:39,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:39,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:39,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 13:55:39,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:39,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:39,542 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 12 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 13:55:39,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153099084] [2020-10-28 13:55:39,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:55:39,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:55:39,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406635776] [2020-10-28 13:55:39,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:55:39,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:55:39,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:55:39,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:55:39,547 INFO L87 Difference]: Start difference. First operand 5838 states and 7274 transitions. Second operand 7 states. [2020-10-28 13:55:49,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:55:49,366 INFO L93 Difference]: Finished difference Result 13973 states and 17300 transitions. [2020-10-28 13:55:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 13:55:49,377 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2020-10-28 13:55:49,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:55:49,415 INFO L225 Difference]: With dead ends: 13973 [2020-10-28 13:55:49,415 INFO L226 Difference]: Without dead ends: 8141 [2020-10-28 13:55:49,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-28 13:55:49,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2020-10-28 13:55:49,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 8099. [2020-10-28 13:55:49,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8099 states. [2020-10-28 13:55:49,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 9763 transitions. [2020-10-28 13:55:49,620 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 9763 transitions. Word has length 209 [2020-10-28 13:55:49,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:55:49,620 INFO L481 AbstractCegarLoop]: Abstraction has 8099 states and 9763 transitions. [2020-10-28 13:55:49,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:55:49,621 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 9763 transitions. [2020-10-28 13:55:49,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-10-28 13:55:49,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:55:49,627 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:55:49,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 13:55:49,628 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:55:49,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:55:49,628 INFO L82 PathProgramCache]: Analyzing trace with hash 155463990, now seen corresponding path program 1 times [2020-10-28 13:55:49,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:55:49,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557038983] [2020-10-28 13:55:49,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:55:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:49,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:49,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:50,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:51,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:54,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:54,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 411 [2020-10-28 13:55:54,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 13:55:54,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4444 [2020-10-28 13:55:54,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:54,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:54,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:55:54,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-28 13:55:54,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 13:55:54,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:54,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:55:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:54,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:54,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:54,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:55:54,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:54,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 13:55:54,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:54,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:54,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:54,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:54,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:54,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 13:55:54,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:55:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:54,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:54,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:54,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-28 13:55:54,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:54,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-28 13:55:54,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:54,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:54,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:55:54,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:54,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-28 13:55:54,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 13:55:54,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-28 13:55:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:54,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:54,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:54,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 13:55:54,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:54,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-28 13:55:54,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:54,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:54,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:55:54,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:55:54,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-28 13:55:54,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:55:55,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-28 13:55:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:55,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:55,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:55,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 13:55:55,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:55,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 13:55:55,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:55,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:55,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 13:55:55,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:55,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:55:55,386 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 141 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-28 13:55:55,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557038983] [2020-10-28 13:55:55,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:55:55,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:55:55,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197810626] [2020-10-28 13:55:55,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:55:55,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:55:55,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:55:55,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:55:55,389 INFO L87 Difference]: Start difference. First operand 8099 states and 9763 transitions. Second operand 7 states. [2020-10-28 13:56:06,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:56:06,628 INFO L93 Difference]: Finished difference Result 18655 states and 23355 transitions. [2020-10-28 13:56:06,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 13:56:06,629 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 395 [2020-10-28 13:56:06,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:56:06,683 INFO L225 Difference]: With dead ends: 18655 [2020-10-28 13:56:06,683 INFO L226 Difference]: Without dead ends: 9660 [2020-10-28 13:56:06,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:56:06,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9660 states. [2020-10-28 13:56:06,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9660 to 9544. [2020-10-28 13:56:06,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9544 states. [2020-10-28 13:56:06,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9544 states to 9544 states and 10489 transitions. [2020-10-28 13:56:06,938 INFO L78 Accepts]: Start accepts. Automaton has 9544 states and 10489 transitions. Word has length 395 [2020-10-28 13:56:06,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:56:06,939 INFO L481 AbstractCegarLoop]: Abstraction has 9544 states and 10489 transitions. [2020-10-28 13:56:06,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:56:06,939 INFO L276 IsEmpty]: Start isEmpty. Operand 9544 states and 10489 transitions. [2020-10-28 13:56:06,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 857 [2020-10-28 13:56:06,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:56:06,969 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:56:06,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 13:56:06,969 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:56:06,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:56:06,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1208262236, now seen corresponding path program 1 times [2020-10-28 13:56:06,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:56:06,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534164854] [2020-10-28 13:56:06,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:56:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:07,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:07,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:07,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:12,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:12,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 878 [2020-10-28 13:56:12,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:56:12,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-28 13:56:12,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:12,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:56:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 535 [2020-10-28 13:56:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-28 13:56:12,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:12,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:56:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:12,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:12,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:12,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:56:12,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:12,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 13:56:12,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:12,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:12,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:12,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:12,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:56:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:12,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:13,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:13,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:56:13,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:13,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 611 [2020-10-28 13:56:13,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:13,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:56:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:13,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 520 [2020-10-28 13:56:13,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:13,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:56:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:13,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:13,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:13,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:56:13,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:13,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-28 13:56:13,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:13,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:13,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:56:13,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:13,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 235 [2020-10-28 13:56:13,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:13,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:56:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:13,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:13,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:13,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:56:13,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:13,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 13:56:13,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:13,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:56:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 13:56:13,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 13:56:14,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:56:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:14,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:14,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:14,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 13:56:14,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:14,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-28 13:56:14,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:14,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:14,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:56:14,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:56:14,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-28 13:56:14,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:56:14,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2020-10-28 13:56:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:14,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:14,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:14,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-28 13:56:14,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:14,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 13:56:14,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:14,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:14,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:14,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-28 13:56:14,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:14,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:14,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 764 [2020-10-28 13:56:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:14,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:14,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:14,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 13:56:14,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:14,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 13:56:14,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:14,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:14,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:14,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 13:56:14,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:14,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:15,450 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 151 proven. 189 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-10-28 13:56:15,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534164854] [2020-10-28 13:56:15,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:56:15,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:56:15,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011943579] [2020-10-28 13:56:15,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:56:15,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:56:15,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:56:15,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:56:15,453 INFO L87 Difference]: Start difference. First operand 9544 states and 10489 transitions. Second operand 7 states. [2020-10-28 13:56:23,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:56:23,832 INFO L93 Difference]: Finished difference Result 21390 states and 23577 transitions. [2020-10-28 13:56:23,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:56:23,834 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 856 [2020-10-28 13:56:23,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:56:23,869 INFO L225 Difference]: With dead ends: 21390 [2020-10-28 13:56:23,870 INFO L226 Difference]: Without dead ends: 12554 [2020-10-28 13:56:23,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:56:23,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12554 states. [2020-10-28 13:56:24,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12554 to 12416. [2020-10-28 13:56:24,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12416 states. [2020-10-28 13:56:24,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12416 states to 12416 states and 13500 transitions. [2020-10-28 13:56:24,145 INFO L78 Accepts]: Start accepts. Automaton has 12416 states and 13500 transitions. Word has length 856 [2020-10-28 13:56:24,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:56:24,146 INFO L481 AbstractCegarLoop]: Abstraction has 12416 states and 13500 transitions. [2020-10-28 13:56:24,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:56:24,147 INFO L276 IsEmpty]: Start isEmpty. Operand 12416 states and 13500 transitions. [2020-10-28 13:56:24,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2020-10-28 13:56:24,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:56:24,186 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:56:24,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 13:56:24,187 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:56:24,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:56:24,188 INFO L82 PathProgramCache]: Analyzing trace with hash 36176722, now seen corresponding path program 1 times [2020-10-28 13:56:24,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:56:24,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420905526] [2020-10-28 13:56:24,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:56:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:24,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:25,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:27,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:27,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 960 [2020-10-28 13:56:27,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:56:27,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2949 [2020-10-28 13:56:27,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:27,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:27,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:56:27,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-28 13:56:27,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 13:56:27,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:27,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:56:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:27,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:27,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:27,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:56:27,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:27,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 13:56:27,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:27,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:27,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:27,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:27,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:27,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:56:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:27,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:27,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:27,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:56:27,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:27,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-28 13:56:27,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:27,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:27,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:27,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:27,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:27,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:28,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:56:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:28,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:28,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:28,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:56:28,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:28,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-28 13:56:28,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:28,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:28,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:28,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:28,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:28,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:28,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:56:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:28,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:28,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:28,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:56:28,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:28,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 13:56:28,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:28,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:28,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:28,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:28,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:28,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:28,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:56:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:28,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:28,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:28,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:56:28,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:28,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-28 13:56:28,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:28,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:56:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-28 13:56:28,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:28,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:56:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:28,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:28,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:28,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:56:28,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:28,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 13:56:28,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:28,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:56:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:28,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 13:56:28,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:28,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-28 13:56:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:28,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:29,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:29,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 13:56:29,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:29,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-28 13:56:29,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:29,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:29,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:56:29,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:56:29,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 13:56:29,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:29,556 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 200 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-28 13:56:29,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420905526] [2020-10-28 13:56:29,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:56:29,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:56:29,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984234600] [2020-10-28 13:56:29,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:56:29,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:56:29,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:56:29,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:56:29,559 INFO L87 Difference]: Start difference. First operand 12416 states and 13500 transitions. Second operand 7 states. [2020-10-28 13:56:37,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:56:37,072 INFO L93 Difference]: Finished difference Result 29337 states and 32598 transitions. [2020-10-28 13:56:37,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:56:37,074 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 938 [2020-10-28 13:56:37,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:56:37,129 INFO L225 Difference]: With dead ends: 29337 [2020-10-28 13:56:37,130 INFO L226 Difference]: Without dead ends: 17629 [2020-10-28 13:56:37,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:56:37,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17629 states. [2020-10-28 13:56:37,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17629 to 17520. [2020-10-28 13:56:37,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17520 states. [2020-10-28 13:56:37,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17520 states to 17520 states and 19282 transitions. [2020-10-28 13:56:37,526 INFO L78 Accepts]: Start accepts. Automaton has 17520 states and 19282 transitions. Word has length 938 [2020-10-28 13:56:37,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:56:37,528 INFO L481 AbstractCegarLoop]: Abstraction has 17520 states and 19282 transitions. [2020-10-28 13:56:37,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:56:37,529 INFO L276 IsEmpty]: Start isEmpty. Operand 17520 states and 19282 transitions. [2020-10-28 13:56:37,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1036 [2020-10-28 13:56:37,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:56:37,546 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:56:37,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 13:56:37,546 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:56:37,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:56:37,547 INFO L82 PathProgramCache]: Analyzing trace with hash -392073028, now seen corresponding path program 1 times [2020-10-28 13:56:37,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:56:37,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865578526] [2020-10-28 13:56:37,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:56:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:37,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:38,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:39,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:42,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:42,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1059 [2020-10-28 13:56:42,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:56:42,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-28 13:56:42,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:42,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:56:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 930 [2020-10-28 13:56:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-28 13:56:42,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:43,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:56:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:43,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:43,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:43,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:56:43,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:43,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:56:43,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:43,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:43,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:43,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:56:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:43,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:43,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:43,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:56:43,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:43,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 13:56:43,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:43,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:43,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:43,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:43,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:43,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:43,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:56:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:43,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:43,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:43,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:56:43,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:43,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 13:56:43,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:43,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:43,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:43,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:43,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:43,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:43,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:56:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:43,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:43,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:43,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:56:43,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:43,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 13:56:43,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:43,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:43,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:43,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:43,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:43,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:43,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:56:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:43,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:43,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:43,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:56:43,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:43,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 13:56:43,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:43,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:43,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:43,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:43,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:43,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:43,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:56:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:43,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:43,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:43,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:56:43,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:43,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 13:56:43,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:43,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:43,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:43,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:43,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:43,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:43,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-28 13:56:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:43,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:43,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:43,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 13:56:43,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:43,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-28 13:56:43,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:43,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:56:43,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:43,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 13:56:43,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:43,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-28 13:56:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:43,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:44,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:44,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 13:56:44,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:44,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-28 13:56:44,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:44,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:44,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:56:44,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:56:44,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 13:56:44,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:44,852 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 323 proven. 2 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2020-10-28 13:56:44,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865578526] [2020-10-28 13:56:44,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:56:44,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:56:44,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766967302] [2020-10-28 13:56:44,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:56:44,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:56:44,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:56:44,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:56:44,855 INFO L87 Difference]: Start difference. First operand 17520 states and 19282 transitions. Second operand 7 states. [2020-10-28 13:56:54,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:56:54,075 INFO L93 Difference]: Finished difference Result 38697 states and 43308 transitions. [2020-10-28 13:56:54,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 13:56:54,082 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1035 [2020-10-28 13:56:54,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:56:54,162 INFO L225 Difference]: With dead ends: 38697 [2020-10-28 13:56:54,162 INFO L226 Difference]: Without dead ends: 21885 [2020-10-28 13:56:54,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:56:54,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21885 states. [2020-10-28 13:56:54,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21885 to 21805. [2020-10-28 13:56:54,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21805 states. [2020-10-28 13:56:54,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21805 states to 21805 states and 23811 transitions. [2020-10-28 13:56:54,726 INFO L78 Accepts]: Start accepts. Automaton has 21805 states and 23811 transitions. Word has length 1035 [2020-10-28 13:56:54,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:56:54,728 INFO L481 AbstractCegarLoop]: Abstraction has 21805 states and 23811 transitions. [2020-10-28 13:56:54,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:56:54,729 INFO L276 IsEmpty]: Start isEmpty. Operand 21805 states and 23811 transitions. [2020-10-28 13:56:54,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1130 [2020-10-28 13:56:54,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:56:54,748 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:56:54,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 13:56:54,748 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:56:54,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:56:54,749 INFO L82 PathProgramCache]: Analyzing trace with hash 949982072, now seen corresponding path program 1 times [2020-10-28 13:56:54,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:56:54,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85714357] [2020-10-28 13:56:54,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:56:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:55,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:55,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:57,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:58,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:59,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:59,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1153 [2020-10-28 13:56:59,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 13:56:59,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-28 13:56:59,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:59,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:59,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:56:59,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-28 13:56:59,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-28 13:56:59,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:00,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:57:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:00,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:00,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:00,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:57:00,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:00,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:57:00,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:00,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:00,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:00,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:00,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:00,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:00,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:57:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:00,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:00,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:00,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:57:00,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:00,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 13:57:00,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:00,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:00,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:00,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:00,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:00,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:00,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:57:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:00,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:00,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:00,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:57:00,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:00,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 13:57:00,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:00,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:00,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:00,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:00,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:00,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:00,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:57:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:00,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:00,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:00,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:57:00,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:00,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 13:57:00,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:00,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:00,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:00,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:00,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:57:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:00,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:00,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:00,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:57:00,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:00,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 13:57:00,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:00,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:00,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:00,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:00,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:00,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-28 13:57:00,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:57:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:00,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:00,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:00,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:57:00,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:00,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 13:57:00,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:00,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:00,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:00,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:00,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:00,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:01,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-28 13:57:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:01,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:01,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:01,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 13:57:01,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:01,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 13:57:01,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:01,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:57:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 13:57:01,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:01,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-28 13:57:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:01,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:01,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:01,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:01,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 13:57:01,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:57:01,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-28 13:57:01,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:01,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:01,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:57:01,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:57:01,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-28 13:57:01,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:02,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 457 proven. 6 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2020-10-28 13:57:02,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85714357] [2020-10-28 13:57:02,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:57:02,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 13:57:02,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309615891] [2020-10-28 13:57:02,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 13:57:02,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:57:02,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 13:57:02,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 13:57:02,867 INFO L87 Difference]: Start difference. First operand 21805 states and 23811 transitions. Second operand 6 states. [2020-10-28 13:57:10,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:57:10,750 INFO L93 Difference]: Finished difference Result 51529 states and 57713 transitions. [2020-10-28 13:57:10,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 13:57:10,751 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1129 [2020-10-28 13:57:10,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:57:10,836 INFO L225 Difference]: With dead ends: 51529 [2020-10-28 13:57:10,836 INFO L226 Difference]: Without dead ends: 30432 [2020-10-28 13:57:10,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:57:10,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30432 states. [2020-10-28 13:57:11,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30432 to 30337. [2020-10-28 13:57:11,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30337 states. [2020-10-28 13:57:11,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30337 states to 30337 states and 33351 transitions. [2020-10-28 13:57:11,407 INFO L78 Accepts]: Start accepts. Automaton has 30337 states and 33351 transitions. Word has length 1129 [2020-10-28 13:57:11,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:57:11,408 INFO L481 AbstractCegarLoop]: Abstraction has 30337 states and 33351 transitions. [2020-10-28 13:57:11,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 13:57:11,408 INFO L276 IsEmpty]: Start isEmpty. Operand 30337 states and 33351 transitions. [2020-10-28 13:57:11,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1165 [2020-10-28 13:57:11,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:57:11,429 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:57:11,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 13:57:11,430 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:57:11,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:57:11,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1958018314, now seen corresponding path program 1 times [2020-10-28 13:57:11,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:57:11,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779914589] [2020-10-28 13:57:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:57:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:11,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:11,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:14,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:15,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:16,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:16,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1190 [2020-10-28 13:57:16,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 13:57:16,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-28 13:57:16,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:16,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:16,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:57:16,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-28 13:57:16,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 13:57:16,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:16,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:57:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:16,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:16,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:16,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:57:16,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:16,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:57:16,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:16,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:16,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:16,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:16,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:16,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:16,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:57:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:16,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:17,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:17,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:57:17,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:17,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-28 13:57:17,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:17,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:17,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:17,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:17,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:17,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:17,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:57:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:17,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:17,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:17,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:57:17,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:17,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 13:57:17,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:17,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:17,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:17,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:17,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:17,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:17,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:57:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:17,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:17,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:17,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:57:17,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:17,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:57:17,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:17,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:17,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:17,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:17,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:17,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:17,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:57:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:17,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:17,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:17,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:57:17,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:17,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-28 13:57:17,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:17,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:57:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-28 13:57:17,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:17,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:57:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:17,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:17,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:17,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:57:17,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:17,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 13:57:17,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:17,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:57:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 13:57:17,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:17,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-28 13:57:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:17,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:17,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:17,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 13:57:17,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:17,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 13:57:17,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:17,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:17,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:57:17,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:57:17,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-28 13:57:17,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:18,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-28 13:57:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:18,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:18,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:18,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-28 13:57:18,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:18,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 13:57:18,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:18,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:18,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-28 13:57:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:18,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:18,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-28 13:57:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:18,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:18,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:18,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 13:57:18,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:18,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 13:57:18,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:18,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-28 13:57:18,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:18,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:19,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1251 backedges. 292 proven. 190 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2020-10-28 13:57:19,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779914589] [2020-10-28 13:57:19,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:57:19,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:57:19,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994842611] [2020-10-28 13:57:19,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:57:19,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:57:19,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:57:19,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:57:19,014 INFO L87 Difference]: Start difference. First operand 30337 states and 33351 transitions. Second operand 7 states. [2020-10-28 13:57:32,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:57:32,573 INFO L93 Difference]: Finished difference Result 67915 states and 75044 transitions. [2020-10-28 13:57:32,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 13:57:32,574 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1164 [2020-10-28 13:57:32,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:57:32,674 INFO L225 Difference]: With dead ends: 67915 [2020-10-28 13:57:32,675 INFO L226 Difference]: Without dead ends: 38286 [2020-10-28 13:57:32,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:57:32,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38286 states. [2020-10-28 13:57:33,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38286 to 37472. [2020-10-28 13:57:33,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37472 states. [2020-10-28 13:57:33,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37472 states to 37472 states and 41065 transitions. [2020-10-28 13:57:33,639 INFO L78 Accepts]: Start accepts. Automaton has 37472 states and 41065 transitions. Word has length 1164 [2020-10-28 13:57:33,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:57:33,640 INFO L481 AbstractCegarLoop]: Abstraction has 37472 states and 41065 transitions. [2020-10-28 13:57:33,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:57:33,640 INFO L276 IsEmpty]: Start isEmpty. Operand 37472 states and 41065 transitions. [2020-10-28 13:57:33,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1241 [2020-10-28 13:57:33,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:57:33,667 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:57:33,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 13:57:33,668 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:57:33,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:57:33,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1747052814, now seen corresponding path program 1 times [2020-10-28 13:57:33,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:57:33,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783211051] [2020-10-28 13:57:33,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:57:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:34,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:34,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:35,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:38,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:38,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1268 [2020-10-28 13:57:38,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:57:38,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-28 13:57:38,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:38,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:38,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:57:38,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 930 [2020-10-28 13:57:38,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 13:57:38,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:39,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:57:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:39,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:39,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:39,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:57:39,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:39,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:57:39,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:39,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:39,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:39,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:39,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:39,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:39,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:57:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:39,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:39,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:39,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:57:39,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:39,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 13:57:39,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:39,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:39,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:39,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:57:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:39,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:39,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:39,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:57:39,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:39,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 13:57:39,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:39,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:39,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:39,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:39,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:39,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:39,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:57:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:39,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:39,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:39,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:57:39,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:39,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:57:39,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:39,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:39,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:39,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:39,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:39,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:57:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:39,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:39,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:39,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:57:39,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:39,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 13:57:39,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:39,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:39,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:39,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:57:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:39,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:39,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:39,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:57:39,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:39,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 13:57:39,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:39,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:39,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:39,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:39,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:39,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:39,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-28 13:57:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:39,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:39,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:39,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 13:57:39,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:39,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 13:57:39,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:39,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:57:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 13:57:39,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:39,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-28 13:57:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:39,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:39,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:39,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 13:57:39,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:39,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 13:57:39,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:39,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:39,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:57:39,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:57:39,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-28 13:57:39,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:40,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1040 [2020-10-28 13:57:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:40,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:40,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:40,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-28 13:57:40,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:40,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 13:57:40,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:40,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-28 13:57:40,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:40,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:40,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1146 [2020-10-28 13:57:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:40,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:40,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:40,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 13:57:40,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:40,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 13:57:40,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:40,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:40,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:40,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-28 13:57:40,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:40,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:41,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1637 backedges. 381 proven. 190 refuted. 0 times theorem prover too weak. 1066 trivial. 0 not checked. [2020-10-28 13:57:41,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783211051] [2020-10-28 13:57:41,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:57:41,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:57:41,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039599756] [2020-10-28 13:57:41,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:57:41,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:57:41,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:57:41,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:57:41,008 INFO L87 Difference]: Start difference. First operand 37472 states and 41065 transitions. Second operand 7 states. [2020-10-28 13:57:51,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:57:51,555 INFO L93 Difference]: Finished difference Result 82094 states and 90940 transitions. [2020-10-28 13:57:51,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:57:51,556 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1240 [2020-10-28 13:57:51,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:57:51,668 INFO L225 Difference]: With dead ends: 82094 [2020-10-28 13:57:51,668 INFO L226 Difference]: Without dead ends: 45330 [2020-10-28 13:57:51,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:57:51,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45330 states. [2020-10-28 13:57:52,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45330 to 45272. [2020-10-28 13:57:52,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45272 states. [2020-10-28 13:57:52,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45272 states to 45272 states and 49281 transitions. [2020-10-28 13:57:52,514 INFO L78 Accepts]: Start accepts. Automaton has 45272 states and 49281 transitions. Word has length 1240 [2020-10-28 13:57:52,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:57:52,514 INFO L481 AbstractCegarLoop]: Abstraction has 45272 states and 49281 transitions. [2020-10-28 13:57:52,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:57:52,515 INFO L276 IsEmpty]: Start isEmpty. Operand 45272 states and 49281 transitions. [2020-10-28 13:57:52,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1262 [2020-10-28 13:57:52,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:57:52,540 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:57:52,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 13:57:52,541 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:57:52,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:57:52,542 INFO L82 PathProgramCache]: Analyzing trace with hash -77667536, now seen corresponding path program 1 times [2020-10-28 13:57:52,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:57:52,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157134105] [2020-10-28 13:57:52,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:57:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:52,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:53,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:53,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1285 [2020-10-28 13:57:53,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:53,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1111 [2020-10-28 13:57:53,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:53,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:53,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:57:53,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1269 [2020-10-28 13:57:53,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 13:57:53,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:54,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:57:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:54,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:54,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:54,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:57:54,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:54,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:57:54,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:54,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:54,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:54,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:54,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:54,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:54,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:57:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:54,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:54,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:54,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:57:54,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:54,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-28 13:57:54,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:54,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:54,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:54,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:54,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:54,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:54,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:57:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:54,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:54,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:54,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:57:54,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:54,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 13:57:54,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:54,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:54,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:54,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:57:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:54,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:54,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:54,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:57:54,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:54,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:57:54,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:54,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:54,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:54,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:54,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:54,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:54,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:57:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:54,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:54,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:54,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:57:54,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:54,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 13:57:54,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:54,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:54,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:54,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:57:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:54,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:54,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:54,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:57:54,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:54,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 13:57:54,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:54,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:54,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:54,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:54,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:54,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:54,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-28 13:57:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:54,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:54,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:54,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-28 13:57:54,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:54,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 13:57:54,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:54,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:54,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:54,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:54,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:54,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:54,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-28 13:57:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:55,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:55,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:55,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-28 13:57:55,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:55,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-28 13:57:55,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:55,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:55,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:57:55,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:55,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-28 13:57:55,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:56,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 1267 trivial. 0 not checked. [2020-10-28 13:57:56,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [157134105] [2020-10-28 13:57:56,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:57:56,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 13:57:56,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725561100] [2020-10-28 13:57:56,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 13:57:56,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:57:56,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 13:57:56,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 13:57:56,257 INFO L87 Difference]: Start difference. First operand 45272 states and 49281 transitions. Second operand 5 states. [2020-10-28 13:58:05,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:58:05,554 INFO L93 Difference]: Finished difference Result 108943 states and 120748 transitions. [2020-10-28 13:58:05,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:58:05,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1261 [2020-10-28 13:58:05,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:58:05,736 INFO L225 Difference]: With dead ends: 108943 [2020-10-28 13:58:05,736 INFO L226 Difference]: Without dead ends: 64379 [2020-10-28 13:58:05,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 13:58:05,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64379 states. [2020-10-28 13:58:06,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64379 to 63675. [2020-10-28 13:58:06,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63675 states. [2020-10-28 13:58:06,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63675 states to 63675 states and 69564 transitions. [2020-10-28 13:58:06,749 INFO L78 Accepts]: Start accepts. Automaton has 63675 states and 69564 transitions. Word has length 1261 [2020-10-28 13:58:06,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:58:06,750 INFO L481 AbstractCegarLoop]: Abstraction has 63675 states and 69564 transitions. [2020-10-28 13:58:06,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 13:58:06,750 INFO L276 IsEmpty]: Start isEmpty. Operand 63675 states and 69564 transitions. [2020-10-28 13:58:06,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1294 [2020-10-28 13:58:06,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:58:06,777 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:58:06,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 13:58:06,778 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:58:06,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:58:06,778 INFO L82 PathProgramCache]: Analyzing trace with hash -909734383, now seen corresponding path program 1 times [2020-10-28 13:58:06,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:58:06,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183815643] [2020-10-28 13:58:06,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:58:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:07,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:08,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:08,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1319 [2020-10-28 13:58:08,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:08,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1918 [2020-10-28 13:58:08,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:08,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:08,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:58:08,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1300 [2020-10-28 13:58:08,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 13:58:08,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:09,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:58:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:09,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:09,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:09,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:58:09,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:09,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:58:09,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:09,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:09,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:58:09,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:09,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:58:09,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:09,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:58:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:09,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:09,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:09,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:58:09,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:09,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-28 13:58:09,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:09,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:09,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:58:09,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:09,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:58:09,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:09,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:58:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:09,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:09,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:09,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:58:09,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:09,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 13:58:09,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:09,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:09,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:58:09,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:09,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:58:09,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:09,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:58:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:09,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:09,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:09,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:58:09,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:09,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:58:09,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:09,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:09,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:58:09,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:09,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:58:09,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:09,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:58:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:09,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:09,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:09,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:58:09,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:09,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 13:58:09,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:09,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:58:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:09,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:58:09,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:09,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:58:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:09,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:09,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:09,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:58:09,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:09,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 13:58:09,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:09,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:09,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:58:09,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:09,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:58:09,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:09,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-28 13:58:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:09,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:09,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:09,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-28 13:58:09,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:09,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 13:58:09,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:09,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:09,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:58:09,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:09,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:58:09,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:09,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-28 13:58:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:10,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:10,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:10,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 305 [2020-10-28 13:58:10,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:10,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-28 13:58:10,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:10,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:10,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:58:10,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:10,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 296 [2020-10-28 13:58:10,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:10,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:58:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:10,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:10,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:10,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:58:10,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:10,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 13:58:10,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:10,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:10,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:58:10,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 13:58:10,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:11,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1364 backedges. 35 proven. 4 refuted. 0 times theorem prover too weak. 1325 trivial. 0 not checked. [2020-10-28 13:58:11,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1183815643] [2020-10-28 13:58:11,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:58:11,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 13:58:11,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906661125] [2020-10-28 13:58:11,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 13:58:11,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:58:11,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 13:58:11,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 13:58:11,181 INFO L87 Difference]: Start difference. First operand 63675 states and 69564 transitions. Second operand 5 states. [2020-10-28 13:58:19,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:58:19,710 INFO L93 Difference]: Finished difference Result 133681 states and 146453 transitions. [2020-10-28 13:58:19,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:58:19,711 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1293 [2020-10-28 13:58:19,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:58:19,855 INFO L225 Difference]: With dead ends: 133681 [2020-10-28 13:58:19,855 INFO L226 Difference]: Without dead ends: 70714 [2020-10-28 13:58:19,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 13:58:19,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70714 states. [2020-10-28 13:58:21,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70714 to 70712. [2020-10-28 13:58:21,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70712 states. [2020-10-28 13:58:21,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70712 states to 70712 states and 76883 transitions. [2020-10-28 13:58:21,704 INFO L78 Accepts]: Start accepts. Automaton has 70712 states and 76883 transitions. Word has length 1293 [2020-10-28 13:58:21,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:58:21,709 INFO L481 AbstractCegarLoop]: Abstraction has 70712 states and 76883 transitions. [2020-10-28 13:58:21,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 13:58:21,709 INFO L276 IsEmpty]: Start isEmpty. Operand 70712 states and 76883 transitions. [2020-10-28 13:58:21,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1307 [2020-10-28 13:58:21,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:58:21,752 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:58:21,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 13:58:21,753 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:58:21,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:58:21,753 INFO L82 PathProgramCache]: Analyzing trace with hash 598655918, now seen corresponding path program 1 times [2020-10-28 13:58:21,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:58:21,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124374851] [2020-10-28 13:58:21,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:58:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:22,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:22,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:22,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:27,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:27,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1334 [2020-10-28 13:58:27,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:58:27,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-28 13:58:27,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:27,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:27,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:58:27,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-28 13:58:27,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-28 13:58:27,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:27,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:58:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:27,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:27,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:27,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:58:27,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:27,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:58:27,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:27,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:58:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:58:27,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:27,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:58:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:27,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:27,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:27,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:58:27,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:27,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 13:58:27,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:27,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:27,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:58:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:58:27,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:58:27,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:58:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:27,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:27,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:27,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:58:27,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:27,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 13:58:27,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:27,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:27,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:58:27,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:27,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:58:27,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:27,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:58:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:27,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:27,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:27,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:58:27,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:27,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:58:27,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:27,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:27,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:58:27,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:27,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:58:27,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:27,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:58:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:28,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:28,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:28,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:58:28,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:28,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-28 13:58:28,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:28,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:28,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:58:28,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:28,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-28 13:58:28,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:28,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:58:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:28,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:28,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:28,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:58:28,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:28,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 13:58:28,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:28,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:28,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:58:28,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:58:28,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 13:58:28,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:28,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-28 13:58:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:28,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:28,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:28,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-28 13:58:28,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:28,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 13:58:28,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:28,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:58:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:58:28,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-28 13:58:28,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:28,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2020-10-28 13:58:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:28,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:28,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:28,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 13:58:28,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:28,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 13:58:28,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:28,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:28,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:58:28,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-28 13:58:28,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:58:28,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:28,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1106 [2020-10-28 13:58:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:28,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:28,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:28,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-28 13:58:28,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:28,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 13:58:28,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:28,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:28,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:58:28,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-28 13:58:28,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:58:28,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:58:28,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1212 [2020-10-28 13:58:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:58:28,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:58:28,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:58:28,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 13:58:28,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:58:28,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 13:58:28,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:58:28,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:58:28,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:58:28,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-28 13:58:28,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:58:28,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0