/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block 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=NARROWEST --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 -i ../../../trunk/examples/svcomp/eca-rers2012/Problem05_label15.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:47:43,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:47:43,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:47:43,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:47:43,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:47:43,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:47:43,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:47:43,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:47:43,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:47:43,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:47:43,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:47:43,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:47:43,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:47:43,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:47:43,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:47:43,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:47:43,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:47:43,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:47:43,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:47:43,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:47:43,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:47:43,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:47:43,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:47:43,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:47:43,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:47:43,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:47:43,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:47:43,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:47:43,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:47:43,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:47:43,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:47:43,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:47:43,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:47:43,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:47:43,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:47:43,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:47:43,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:47:43,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:47:43,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:47:43,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:47:43,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:47:43,721 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 [2020-10-13 06:47:43,761 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:47:43,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:47:43,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:47:43,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:47:43,763 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:47:43,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:47:43,764 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:47:43,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:47:43,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:47:43,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:47:43,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:47:43,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:47:43,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:47:43,766 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:47:43,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:47:43,767 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:47:43,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:47:43,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:47:43,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:47:43,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:47:43,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:47:43,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:47:43,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:47:43,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:47:43,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:47:43,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:47:43,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:47:43,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:47:43,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:47:43,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 06:47:44,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:47:44,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:47:44,121 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:47:44,123 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:47:44,123 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:47:44,124 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label15.c [2020-10-13 06:47:44,202 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5065f83d1/2a338257d30946bb954f1d99fa6051fb/FLAG4f15d39bc [2020-10-13 06:47:45,234 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:47:45,235 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem05_label15.c [2020-10-13 06:47:45,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5065f83d1/2a338257d30946bb954f1d99fa6051fb/FLAG4f15d39bc [2020-10-13 06:47:45,588 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5065f83d1/2a338257d30946bb954f1d99fa6051fb [2020-10-13 06:47:45,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:47:45,599 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:47:45,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:47:45,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:47:45,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:47:45,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:47:45" (1/1) ... [2020-10-13 06:47:45,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c286c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:45, skipping insertion in model container [2020-10-13 06:47:45,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:47:45" (1/1) ... [2020-10-13 06:47:45,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:47:45,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:47:48,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:47:48,405 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:47:49,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:47:49,684 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:47:49,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:49 WrapperNode [2020-10-13 06:47:49,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:47:49,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:47:49,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:47:49,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:47:49,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:49" (1/1) ... [2020-10-13 06:47:49,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:49" (1/1) ... [2020-10-13 06:47:49,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:49" (1/1) ... [2020-10-13 06:47:49,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:49" (1/1) ... [2020-10-13 06:47:49,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:49" (1/1) ... [2020-10-13 06:47:50,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:49" (1/1) ... [2020-10-13 06:47:50,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:49" (1/1) ... [2020-10-13 06:47:50,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:47:50,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:47:50,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:47:50,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:47:50,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:49" (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 [2020-10-13 06:47:50,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:47:50,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:47:50,348 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:47:50,348 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-13 06:47:50,348 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-13 06:47:50,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-13 06:47:50,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-13 06:47:50,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2020-10-13 06:47:50,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2020-10-13 06:47:50,499 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2020-10-13 06:47:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:47:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:47:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-13 06:47:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-13 06:47:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-13 06:47:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-13 06:47:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2020-10-13 06:47:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2020-10-13 06:47:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2020-10-13 06:47:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:47:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:47:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:47:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:47:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:47:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:48:00,148 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:48:00,148 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:48:00,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:48:00 BoogieIcfgContainer [2020-10-13 06:48:00,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:48:00,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:48:00,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:48:00,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:48:00,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:47:45" (1/3) ... [2020-10-13 06:48:00,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43130a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:48:00, skipping insertion in model container [2020-10-13 06:48:00,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:49" (2/3) ... [2020-10-13 06:48:00,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43130a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:48:00, skipping insertion in model container [2020-10-13 06:48:00,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:48:00" (3/3) ... [2020-10-13 06:48:00,174 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem05_label15.c [2020-10-13 06:48:00,185 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:48:00,195 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:48:00,209 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:48:00,243 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:48:00,243 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:48:00,244 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:48:00,244 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:48:00,244 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:48:00,244 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:48:00,244 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:48:00,244 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:48:00,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states. [2020-10-13 06:48:00,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1671 [2020-10-13 06:48:00,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:48:00,404 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:48:00,404 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:48:00,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:48:00,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1643490975, now seen corresponding path program 1 times [2020-10-13 06:48:00,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:48:00,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185155343] [2020-10-13 06:48:00,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:48:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:48:01,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:48:06,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:48:06,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1692 [2020-10-13 06:48:06,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:48:06,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5208 [2020-10-13 06:48:06,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:48:06,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-13 06:48:06,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:48:06,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1686 [2020-10-13 06:48:06,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:48:08,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:48:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:48:08,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:48:08,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:48:08,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:48:08,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:48:08,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:48:08,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:48:08,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:48:08,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:48:08,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:48:08,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:48:10,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:48:10,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185155343] [2020-10-13 06:48:10,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:48:10,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 06:48:10,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898445472] [2020-10-13 06:48:10,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 06:48:10,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:48:10,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 06:48:10,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 06:48:10,640 INFO L87 Difference]: Start difference. First operand 2222 states. Second operand 4 states. [2020-10-13 06:48:28,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:48:28,887 INFO L93 Difference]: Finished difference Result 6311 states and 11851 transitions. [2020-10-13 06:48:28,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:48:28,890 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1670 [2020-10-13 06:48:28,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:48:28,944 INFO L225 Difference]: With dead ends: 6311 [2020-10-13 06:48:28,944 INFO L226 Difference]: Without dead ends: 4025 [2020-10-13 06:48:28,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:48:28,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4025 states. [2020-10-13 06:48:29,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4025 to 3996. [2020-10-13 06:48:29,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3996 states. [2020-10-13 06:48:29,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3996 states to 3996 states and 6427 transitions. [2020-10-13 06:48:29,180 INFO L78 Accepts]: Start accepts. Automaton has 3996 states and 6427 transitions. Word has length 1670 [2020-10-13 06:48:29,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:48:29,185 INFO L479 AbstractCegarLoop]: Abstraction has 3996 states and 6427 transitions. [2020-10-13 06:48:29,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 06:48:29,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3996 states and 6427 transitions. [2020-10-13 06:48:29,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1680 [2020-10-13 06:48:29,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:48:29,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:48:29,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:48:29,315 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:48:29,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:48:29,316 INFO L82 PathProgramCache]: Analyzing trace with hash -956895658, now seen corresponding path program 1 times [2020-10-13 06:48:29,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:48:29,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013364285] [2020-10-13 06:48:29,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:48:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:48:29,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:48:31,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:48:34,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:48:34,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1703 [2020-10-13 06:48:34,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:48:34,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 06:48:34,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:48:34,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 06:48:34,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:48:34,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:48:34,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 06:48:35,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:48:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:48:35,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:48:35,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:48:35,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:48:35,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:48:35,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:48:35,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:48:35,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:48:35,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:48:35,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:48:35,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:48:35,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:48:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:48:35,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:48:35,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:48:35,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:48:35,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:48:35,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:48:35,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:48:35,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:48:35,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:48:35,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:48:35,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:48:36,499 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:48:36,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013364285] [2020-10-13 06:48:36,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:48:36,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 06:48:36,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111575822] [2020-10-13 06:48:36,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:48:36,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:48:36,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:48:36,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:48:36,505 INFO L87 Difference]: Start difference. First operand 3996 states and 6427 transitions. Second operand 7 states. [2020-10-13 06:49:02,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:49:02,197 INFO L93 Difference]: Finished difference Result 11926 states and 19288 transitions. [2020-10-13 06:49:02,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:49:02,199 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1679 [2020-10-13 06:49:02,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:49:02,243 INFO L225 Difference]: With dead ends: 11926 [2020-10-13 06:49:02,243 INFO L226 Difference]: Without dead ends: 7936 [2020-10-13 06:49:02,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:49:02,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7936 states. [2020-10-13 06:49:02,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7936 to 7743. [2020-10-13 06:49:02,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7743 states. [2020-10-13 06:49:02,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7743 states to 7743 states and 11188 transitions. [2020-10-13 06:49:02,453 INFO L78 Accepts]: Start accepts. Automaton has 7743 states and 11188 transitions. Word has length 1679 [2020-10-13 06:49:02,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:49:02,454 INFO L479 AbstractCegarLoop]: Abstraction has 7743 states and 11188 transitions. [2020-10-13 06:49:02,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:49:02,454 INFO L276 IsEmpty]: Start isEmpty. Operand 7743 states and 11188 transitions. [2020-10-13 06:49:02,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1682 [2020-10-13 06:49:02,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:49:02,574 INFO L422 BasicCegarLoop]: trace histogram [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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:49:02,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:49:02,575 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:49:02,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:49:02,576 INFO L82 PathProgramCache]: Analyzing trace with hash 506336562, now seen corresponding path program 1 times [2020-10-13 06:49:02,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:49:02,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351292388] [2020-10-13 06:49:02,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:49:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:49:03,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:49:03,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:49:08,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:49:08,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1705 [2020-10-13 06:49:08,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:49:08,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5093 [2020-10-13 06:49:08,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:49:08,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 06:49:08,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:49:08,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 06:49:08,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:49:08,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:49:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:49:08,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:49:08,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:49:08,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:49:08,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:49:08,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:49:08,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:49:08,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:49:08,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:49:08,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:49:08,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:49:08,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:49:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:49:08,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:49:08,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:49:08,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:49:08,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:49:08,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:49:08,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:49:08,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:49:08,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:49:08,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:49:08,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:49:10,001 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:49:10,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351292388] [2020-10-13 06:49:10,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:49:10,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 06:49:10,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343473937] [2020-10-13 06:49:10,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:49:10,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:49:10,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:49:10,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:49:10,009 INFO L87 Difference]: Start difference. First operand 7743 states and 11188 transitions. Second operand 7 states. [2020-10-13 06:49:33,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:49:33,400 INFO L93 Difference]: Finished difference Result 23425 states and 35139 transitions. [2020-10-13 06:49:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:49:33,401 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1681 [2020-10-13 06:49:33,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:49:33,477 INFO L225 Difference]: With dead ends: 23425 [2020-10-13 06:49:33,477 INFO L226 Difference]: Without dead ends: 15688 [2020-10-13 06:49:33,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:49:33,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15688 states. [2020-10-13 06:49:33,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15688 to 15264. [2020-10-13 06:49:33,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15264 states. [2020-10-13 06:49:33,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15264 states to 15264 states and 19805 transitions. [2020-10-13 06:49:33,920 INFO L78 Accepts]: Start accepts. Automaton has 15264 states and 19805 transitions. Word has length 1681 [2020-10-13 06:49:33,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:49:33,921 INFO L479 AbstractCegarLoop]: Abstraction has 15264 states and 19805 transitions. [2020-10-13 06:49:33,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:49:33,926 INFO L276 IsEmpty]: Start isEmpty. Operand 15264 states and 19805 transitions. [2020-10-13 06:49:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1693 [2020-10-13 06:49:33,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:49:33,992 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:49:33,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:49:33,992 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:49:33,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:49:33,993 INFO L82 PathProgramCache]: Analyzing trace with hash -977076862, now seen corresponding path program 1 times [2020-10-13 06:49:33,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:49:33,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829927589] [2020-10-13 06:49:33,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:49:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:49:34,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:49:35,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:49:39,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:49:39,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1716 [2020-10-13 06:49:39,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:49:39,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-13 06:49:39,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:49:39,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 06:49:39,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:49:39,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:49:39,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:49:39,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:49:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:49:39,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:49:39,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:49:39,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:49:39,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:49:39,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:49:39,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:49:39,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:49:39,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:49:39,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:49:39,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:49:39,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:49:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:49:39,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:49:39,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:49:39,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 06:49:39,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:49:39,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 06:49:39,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:49:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:49:39,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:49:39,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:49:39,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:49:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:49:41,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829927589] [2020-10-13 06:49:41,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:49:41,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 06:49:41,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435396329] [2020-10-13 06:49:41,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:49:41,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:49:41,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:49:41,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:49:41,114 INFO L87 Difference]: Start difference. First operand 15264 states and 19805 transitions. Second operand 7 states. [2020-10-13 06:50:04,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:50:04,070 INFO L93 Difference]: Finished difference Result 38488 states and 49711 transitions. [2020-10-13 06:50:04,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:50:04,072 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1692 [2020-10-13 06:50:04,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:50:04,183 INFO L225 Difference]: With dead ends: 38488 [2020-10-13 06:50:04,183 INFO L226 Difference]: Without dead ends: 23230 [2020-10-13 06:50:04,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:50:04,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23230 states. [2020-10-13 06:50:04,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23230 to 22839. [2020-10-13 06:50:04,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22839 states. [2020-10-13 06:50:04,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22839 states to 22839 states and 28214 transitions. [2020-10-13 06:50:04,899 INFO L78 Accepts]: Start accepts. Automaton has 22839 states and 28214 transitions. Word has length 1692 [2020-10-13 06:50:04,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:50:04,900 INFO L479 AbstractCegarLoop]: Abstraction has 22839 states and 28214 transitions. [2020-10-13 06:50:04,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:50:04,900 INFO L276 IsEmpty]: Start isEmpty. Operand 22839 states and 28214 transitions. [2020-10-13 06:50:04,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1806 [2020-10-13 06:50:04,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:50:04,992 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:50:04,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:50:04,997 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:50:04,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:50:04,998 INFO L82 PathProgramCache]: Analyzing trace with hash -520170239, now seen corresponding path program 1 times [2020-10-13 06:50:04,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:50:04,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960000256] [2020-10-13 06:50:04,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:50:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:50:05,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:50:06,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:50:07,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:50:10,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:50:10,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1831 [2020-10-13 06:50:10,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:50:10,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5096 [2020-10-13 06:50:10,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:50:10,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:50:10,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-13 06:50:10,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 06:50:10,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:50:10,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:50:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:50:10,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:50:10,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:50:10,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:50:10,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:50:10,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:50:10,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:50:10,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:50:10,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:50:10,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:50:10,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:50:10,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:50:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:50:10,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:50:11,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:50:11,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 06:50:11,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:50:11,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 06:50:11,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:50:11,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:50:11,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:50:11,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-13 06:50:11,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:50:11,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 06:50:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:50:11,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:50:11,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:50:11,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 06:50:11,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:50:11,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 06:50:11,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:50:11,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:50:11,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:50:11,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:50:11,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:50:12,393 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:50:12,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960000256] [2020-10-13 06:50:12,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:50:12,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:50:12,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337462143] [2020-10-13 06:50:12,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:50:12,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:50:12,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:50:12,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:50:12,397 INFO L87 Difference]: Start difference. First operand 22839 states and 28214 transitions. Second operand 7 states. [2020-10-13 06:50:54,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:50:54,005 INFO L93 Difference]: Finished difference Result 75824 states and 101050 transitions. [2020-10-13 06:50:54,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:50:54,009 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1805 [2020-10-13 06:50:54,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:50:54,194 INFO L225 Difference]: With dead ends: 75824 [2020-10-13 06:50:54,195 INFO L226 Difference]: Without dead ends: 54721 [2020-10-13 06:50:54,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:50:54,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54721 states. [2020-10-13 06:50:55,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54721 to 54481. [2020-10-13 06:50:55,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54481 states. [2020-10-13 06:50:55,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54481 states to 54481 states and 66962 transitions. [2020-10-13 06:50:55,391 INFO L78 Accepts]: Start accepts. Automaton has 54481 states and 66962 transitions. Word has length 1805 [2020-10-13 06:50:55,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:50:55,392 INFO L479 AbstractCegarLoop]: Abstraction has 54481 states and 66962 transitions. [2020-10-13 06:50:55,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:50:55,392 INFO L276 IsEmpty]: Start isEmpty. Operand 54481 states and 66962 transitions. [2020-10-13 06:50:55,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1824 [2020-10-13 06:50:55,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:50:55,535 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:50:55,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:50:55,535 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:50:55,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:50:55,536 INFO L82 PathProgramCache]: Analyzing trace with hash 436892783, now seen corresponding path program 1 times [2020-10-13 06:50:55,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:50:55,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542552249] [2020-10-13 06:50:55,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:50:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:50:56,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:50:57,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:51:01,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:51:01,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1849 [2020-10-13 06:51:01,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:51:01,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5105 [2020-10-13 06:51:01,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:51:01,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-13 06:51:01,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-10-13 06:51:01,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1231 [2020-10-13 06:51:01,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:51:05,884 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-10-13 06:51:06,071 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-10-13 06:51:06,220 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-10-13 06:51:06,388 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2020-10-13 06:51:06,647 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 44 [2020-10-13 06:51:06,913 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 43 [2020-10-13 06:51:07,204 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 41 [2020-10-13 06:51:07,546 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 37 [2020-10-13 06:51:07,690 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2020-10-13 06:51:07,853 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2020-10-13 06:51:08,010 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2020-10-13 06:51:08,164 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2020-10-13 06:51:08,521 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2020-10-13 06:51:08,751 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2020-10-13 06:51:09,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:51:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:51:09,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:51:09,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:51:09,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:51:09,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:51:09,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:51:09,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:51:09,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:51:09,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:51:09,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:51:09,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:51:09,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:51:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:51:09,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:51:09,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:51:09,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 06:51:09,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:51:09,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 06:51:09,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:51:09,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:51:09,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:51:09,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:51:09,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:51:09,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 06:51:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:51:09,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:51:09,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:51:09,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 06:51:09,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:51:09,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 06:51:09,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:51:09,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:51:09,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:51:09,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 06:51:09,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0