/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:06:32,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:06:32,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:06:32,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:06:32,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:06:32,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:06:32,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:06:32,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:06:32,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:06:32,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:06:32,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:06:32,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:06:32,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:06:32,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:06:32,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:06:32,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:06:32,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:06:32,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:06:32,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:06:32,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:06:32,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:06:32,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:06:32,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:06:32,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:06:32,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:06:32,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:06:32,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:06:32,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:06:32,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:06:32,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:06:32,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:06:32,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:06:32,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:06:32,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:06:32,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:06:32,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:06:32,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:06:32,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:06:32,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:06:32,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:06:32,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:06:32,145 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:06:32,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:06:32,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:06:32,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:06:32,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:06:32,174 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:06:32,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:06:32,175 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:06:32,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:06:32,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:06:32,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:06:32,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:06:32,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:06:32,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:06:32,176 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:06:32,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:06:32,177 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:06:32,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:06:32,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:06:32,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:06:32,178 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:06:32,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:06:32,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:06:32,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:06:32,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:06:32,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:06:32,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:06:32,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:06:32,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:06:32,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:06:32,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:06:32,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:06:32,703 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:06:32,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:06:32,713 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:06:32,714 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:06:32,716 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product08.cil.c [2020-09-24 18:06:32,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a1bced83/24610512c9564dcf8923d8a4231baec8/FLAG76a5ba45e [2020-09-24 18:06:33,438 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:06:33,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product08.cil.c [2020-09-24 18:06:33,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a1bced83/24610512c9564dcf8923d8a4231baec8/FLAG76a5ba45e [2020-09-24 18:06:33,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a1bced83/24610512c9564dcf8923d8a4231baec8 [2020-09-24 18:06:33,736 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:06:33,743 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:06:33,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:06:33,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:06:33,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:06:33,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:06:33" (1/1) ... [2020-09-24 18:06:33,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71155234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:33, skipping insertion in model container [2020-09-24 18:06:33,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:06:33" (1/1) ... [2020-09-24 18:06:33,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:06:33,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:06:34,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:06:34,299 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:06:34,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:06:34,538 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:06:34,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:34 WrapperNode [2020-09-24 18:06:34,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:06:34,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:06:34,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:06:34,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:06:34,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:34" (1/1) ... [2020-09-24 18:06:34,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:34" (1/1) ... [2020-09-24 18:06:34,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:34" (1/1) ... [2020-09-24 18:06:34,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:34" (1/1) ... [2020-09-24 18:06:34,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:34" (1/1) ... [2020-09-24 18:06:34,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:34" (1/1) ... [2020-09-24 18:06:34,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:34" (1/1) ... [2020-09-24 18:06:34,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:06:34,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:06:34,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:06:34,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:06:34,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:06:34,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:06:34,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:06:34,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:06:34,759 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:06:34,759 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:06:34,759 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:06:34,759 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:06:34,759 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:06:34,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:06:34,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:06:34,761 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:06:34,761 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:06:34,761 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:06:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:06:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:06:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:06:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:06:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:06:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:06:34,764 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:06:34,764 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:06:34,764 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:06:34,764 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:06:34,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:06:34,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:06:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:06:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:06:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:06:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:06:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:06:34,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:06:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:06:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:06:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:06:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:06:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:06:34,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:06:34,768 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:06:34,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:06:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:06:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:06:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:06:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:06:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:06:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:06:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:06:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:06:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:06:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:06:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:06:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:06:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:06:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:06:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:06:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:06:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:06:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:06:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:06:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:06:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:06:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:06:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:06:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:06:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:06:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:06:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:06:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:06:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:06:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:06:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:06:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:06:34,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:06:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:06:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:06:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:06:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:06:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:06:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:06:34,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:06:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:06:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:06:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:06:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:06:34,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:06:35,972 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:06:35,972 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:06:35,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:06:35 BoogieIcfgContainer [2020-09-24 18:06:35,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:06:35,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:06:35,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:06:35,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:06:35,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:06:33" (1/3) ... [2020-09-24 18:06:35,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105b9283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:06:35, skipping insertion in model container [2020-09-24 18:06:35,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:06:34" (2/3) ... [2020-09-24 18:06:35,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105b9283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:06:35, skipping insertion in model container [2020-09-24 18:06:35,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:06:35" (3/3) ... [2020-09-24 18:06:35,990 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product08.cil.c [2020-09-24 18:06:36,001 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:06:36,012 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:06:36,035 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:06:36,074 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:06:36,074 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:06:36,074 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:06:36,075 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:06:36,075 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:06:36,075 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:06:36,075 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:06:36,075 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:06:36,099 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-09-24 18:06:36,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:06:36,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:36,118 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 18:06:36,118 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:36,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:36,125 INFO L82 PathProgramCache]: Analyzing trace with hash 940912638, now seen corresponding path program 1 times [2020-09-24 18:06:36,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:36,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440329687] [2020-09-24 18:06:36,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:36,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:36,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:38,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:38,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:41,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:41,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:06:41,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:06:41,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-09-24 18:06:41,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:41,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:41,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 18:06:41,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:41,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:06:41,973 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:41,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:06:42,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-24 18:06:42,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:42,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:42,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:06:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:42,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:42,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:42,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:06:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:42,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:06:42,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:42,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:42,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:06:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:42,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:06:42,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:42,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:42,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:06:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:42,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:42,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:42,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:42,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:06:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:06:42,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:42,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:42,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:42,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:06:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:06:42,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:42,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:06:42,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:42,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:42,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:42,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:42,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:42,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 18:06:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:42,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:42,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:42,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:06:42,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:06:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:42,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:42,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:42,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:42,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:42,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:06:42,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:42,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:42,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:42,423 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:06:42,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440329687] [2020-09-24 18:06:42,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:42,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:06:42,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055925243] [2020-09-24 18:06:42,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:06:42,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:42,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:06:42,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:06:42,467 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 4 states. [2020-09-24 18:06:43,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:43,969 INFO L93 Difference]: Finished difference Result 444 states and 525 transitions. [2020-09-24 18:06:43,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:06:43,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 18:06:43,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:43,993 INFO L225 Difference]: With dead ends: 444 [2020-09-24 18:06:43,993 INFO L226 Difference]: Without dead ends: 288 [2020-09-24 18:06:44,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:06:44,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-09-24 18:06:44,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 241. [2020-09-24 18:06:44,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-09-24 18:06:44,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 261 transitions. [2020-09-24 18:06:44,116 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 261 transitions. Word has length 160 [2020-09-24 18:06:44,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:44,117 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 261 transitions. [2020-09-24 18:06:44,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:06:44,118 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 261 transitions. [2020-09-24 18:06:44,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:06:44,123 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:44,123 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 18:06:44,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:06:44,124 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:44,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:44,124 INFO L82 PathProgramCache]: Analyzing trace with hash 240494869, now seen corresponding path program 1 times [2020-09-24 18:06:44,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:44,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063877022] [2020-09-24 18:06:44,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:44,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:44,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:46,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:46,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:47,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:49,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:49,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 18:06:49,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:06:49,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-24 18:06:49,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 18:06:49,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:06:49,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:49,589 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:49,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:49,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:49,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:49,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:06:49,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:49,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-24 18:06:49,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:49,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:49,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:49,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:49,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:49,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:06:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:49,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:49,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:49,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:49,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:49,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:49,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:49,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:49,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:49,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:49,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:49,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:06:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:49,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:49,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:49,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:49,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:49,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:49,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:49,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:49,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:49,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:49,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:49,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:06:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:49,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:49,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:49,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:49,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:49,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:49,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:49,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:49,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:49,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:49,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:49,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:06:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:49,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:49,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:49,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:49,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:49,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:49,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:49,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:49,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:49,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:49,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:49,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:06:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:49,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:49,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:49,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:06:49,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:49,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:49,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:49,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:49,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:49,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:06:49,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:06:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:49,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:49,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:49,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:06:49,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:49,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:49,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:06:49,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:49,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:49,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:49,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:49,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:49,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:49,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:49,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:49,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:49,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:49,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:49,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:49,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:49,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 18:06:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:49,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:49,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:49,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:49,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:49,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:49,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:49,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:49,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:49,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:49,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:49,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:06:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:49,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:49,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:49,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:49,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:49,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:49,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:49,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:49,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:49,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:49,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:06:49,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063877022] [2020-09-24 18:06:49,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:49,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:06:49,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254349559] [2020-09-24 18:06:49,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:06:49,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:49,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:06:49,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:06:49,900 INFO L87 Difference]: Start difference. First operand 241 states and 261 transitions. Second operand 5 states. [2020-09-24 18:06:50,590 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:06:51,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:51,431 INFO L93 Difference]: Finished difference Result 363 states and 409 transitions. [2020-09-24 18:06:51,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:06:51,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 18:06:51,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:51,435 INFO L225 Difference]: With dead ends: 363 [2020-09-24 18:06:51,436 INFO L226 Difference]: Without dead ends: 277 [2020-09-24 18:06:51,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:06:51,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-24 18:06:51,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 231. [2020-09-24 18:06:51,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-09-24 18:06:51,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 248 transitions. [2020-09-24 18:06:51,479 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 248 transitions. Word has length 161 [2020-09-24 18:06:51,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:51,480 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 248 transitions. [2020-09-24 18:06:51,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:06:51,480 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 248 transitions. [2020-09-24 18:06:51,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 18:06:51,482 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:51,483 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 18:06:51,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:06:51,483 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:51,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:51,484 INFO L82 PathProgramCache]: Analyzing trace with hash -823278550, now seen corresponding path program 1 times [2020-09-24 18:06:51,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:51,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [194296474] [2020-09-24 18:06:51,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:51,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:51,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:51,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:54,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:56,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:56,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 18:06:56,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:06:56,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 18:06:56,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:56,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:56,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 18:06:56,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 18:06:56,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:56,834 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:56,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:56,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:56,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:56,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:06:56,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:56,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 18:06:56,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:56,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:56,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:56,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:56,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:56,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:06:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:56,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:56,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:56,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:56,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:56,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:56,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:56,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:56,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:56,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:56,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:56,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:06:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:56,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:56,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:56,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:56,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:56,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:56,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:56,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:56,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:56,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:56,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:56,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:06:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:56,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:57,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:57,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:57,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:57,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:57,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:57,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:57,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:57,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:57,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:57,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:06:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:57,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:57,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:57,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:57,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:57,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:57,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:57,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:57,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:57,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:57,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:57,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:06:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:57,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:57,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:57,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:06:57,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:57,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:57,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:57,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:57,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:57,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:57,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:57,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:06:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:57,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:57,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:57,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:06:57,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:57,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:06:57,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:57,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:57,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:57,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:06:57,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:57,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:06:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:57,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:57,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:57,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:06:57,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:57,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:06:57,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:57,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:57,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:57,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:06:57,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:57,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:57,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:57,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:57,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:57,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:57,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:57,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:57,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:57,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:57,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:57,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:57,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 18:06:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:57,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:57,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:57,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:57,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:57,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:57,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:57,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:57,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:57,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:57,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:57,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 18:06:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:57,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:57,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:57,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:57,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:57,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:06:57,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:57,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:57,117 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:06:57,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [194296474] [2020-09-24 18:06:57,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:57,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:06:57,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565105227] [2020-09-24 18:06:57,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:06:57,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:57,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:06:57,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:06:57,123 INFO L87 Difference]: Start difference. First operand 231 states and 248 transitions. Second operand 6 states. [2020-09-24 18:06:57,665 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:06:59,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:59,459 INFO L93 Difference]: Finished difference Result 537 states and 624 transitions. [2020-09-24 18:06:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 18:06:59,460 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-24 18:06:59,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:59,465 INFO L225 Difference]: With dead ends: 537 [2020-09-24 18:06:59,465 INFO L226 Difference]: Without dead ends: 421 [2020-09-24 18:06:59,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:06:59,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-24 18:06:59,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 337. [2020-09-24 18:06:59,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-09-24 18:06:59,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 372 transitions. [2020-09-24 18:06:59,555 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 372 transitions. Word has length 174 [2020-09-24 18:06:59,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:59,557 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 372 transitions. [2020-09-24 18:06:59,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:06:59,557 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 372 transitions. [2020-09-24 18:06:59,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-24 18:06:59,560 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:59,560 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 18:06:59,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:06:59,561 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:59,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:59,561 INFO L82 PathProgramCache]: Analyzing trace with hash 536041447, now seen corresponding path program 1 times [2020-09-24 18:06:59,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:59,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706825158] [2020-09-24 18:06:59,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:59,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:59,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:00,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:02,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:04,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:04,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-24 18:07:04,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:07:04,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-24 18:07:04,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:04,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:07:04,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-24 18:07:04,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:07:04,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:05,125 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:07:05,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:07:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:05,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:05,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:05,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:07:05,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:05,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 18:07:05,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:05,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:05,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:05,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:05,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:05,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:07:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:05,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:05,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:05,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:05,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:05,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:07:05,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:05,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:05,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:07:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:05,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:05,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:05,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:05,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:05,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:07:05,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:05,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:05,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:05,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:05,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:05,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:07:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:05,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:05,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:05,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:05,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:05,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:07:05,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:05,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:05,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:07:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:05,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:05,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:05,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:07:05,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:05,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:05,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:05,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:05,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:05,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:05,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:05,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:07:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:05,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:05,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:05,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:07:05,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:05,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:05,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:05,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:05,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:05,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:05,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:05,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 18:07:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:05,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:05,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:05,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:07:05,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:05,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:05,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:05,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:05,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:05,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:05,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:05,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 18:07:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:05,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:05,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:05,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:07:05,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:05,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:07:05,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:05,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:07:05,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:07:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:05,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:05,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:05,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:05,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:05,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:07:05,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:05,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:07:05,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:05,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:07:05,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:05,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 18:07:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:05,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:05,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:05,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:05,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:05,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:07:05,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:05,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:07:05,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:05,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:07:05,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:05,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-24 18:07:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:07:05,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:07:05,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:07:05,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:07:05,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:07:05,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:07:05,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:07:05,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:07:05,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:07:05,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:07:05,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:07:05,445 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 18:07:05,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706825158] [2020-09-24 18:07:05,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:07:05,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:07:05,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454164156] [2020-09-24 18:07:05,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:07:05,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:07:05,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:07:05,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:07:05,450 INFO L87 Difference]: Start difference. First operand 337 states and 372 transitions. Second operand 10 states. [2020-09-24 18:07:06,191 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:07,218 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:07,580 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 18:07:08,492 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:07:08,848 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 18:07:09,149 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 18:07:09,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:07:09,223 INFO L93 Difference]: Finished difference Result 568 states and 674 transitions. [2020-09-24 18:07:09,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 18:07:09,223 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-24 18:07:09,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:07:09,225 INFO L225 Difference]: With dead ends: 568 [2020-09-24 18:07:09,225 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 18:07:09,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-09-24 18:07:09,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 18:07:09,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 18:07:09,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 18:07:09,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 18:07:09,230 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-09-24 18:07:09,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:07:09,230 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 18:07:09,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:07:09,231 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 18:07:09,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 18:07:09,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:07:09,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 18:07:09,423 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:09,593 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:09,766 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:09,931 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-24 18:07:10,100 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:10,264 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:10,431 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:10,598 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:10,770 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:11,049 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 7 [2020-09-24 18:07:11,235 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:11,399 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:11,523 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 7 [2020-09-24 18:07:11,871 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 18:07:12,225 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 18:07:12,572 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 18:07:12,908 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-24 18:07:13,057 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:07:13,216 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:13,384 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:13,546 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:13,708 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:13,879 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:14,037 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:14,197 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:14,356 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:14,514 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:14,673 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:14,832 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:14,985 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:15,139 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:15,300 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:15,454 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:15,613 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:15,775 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:15,928 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:16,084 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:16,245 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:16,404 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:16,557 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:16,715 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:16,875 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:17,034 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:17,192 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:17,350 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:17,509 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:17,662 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:17,821 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:17,980 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:18,134 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:18,400 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 7 [2020-09-24 18:07:18,564 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:18,723 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:18,828 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 7 [2020-09-24 18:07:19,022 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:19,180 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:19,341 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:19,452 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-24 18:07:19,611 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:19,772 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:19,930 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:20,088 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:20,246 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:20,399 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:07:20,557 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:07:20,997 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 9