/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:32:09,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:32:09,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:32:09,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:32:09,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:32:09,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:32:09,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:32:09,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:32:09,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:32:09,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:32:09,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:32:09,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:32:09,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:32:09,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:32:09,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:32:09,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:32:09,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:32:09,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:32:09,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:32:09,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:32:09,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:32:09,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:32:09,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:32:09,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:32:09,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:32:09,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:32:09,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:32:09,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:32:09,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:32:09,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:32:09,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:32:09,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:32:09,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:32:09,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:32:09,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:32:09,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:32:09,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:32:09,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:32:09,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:32:09,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:32:09,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:32:09,913 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 12:32:09,946 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:32:09,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:32:09,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:32:09,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:32:09,948 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:32:09,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:32:09,949 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:32:09,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:32:09,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:32:09,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:32:09,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:32:09,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:32:09,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:32:09,950 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:32:09,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:32:09,950 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:32:09,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:32:09,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:32:09,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:32:09,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:32:09,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:32:09,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:32:09,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:32:09,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:32:09,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:32:09,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:32:09,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:32:09,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:32:09,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:32:09,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:32:10,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:32:10,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:32:10,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:32:10,255 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:32:10,255 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:32:10,256 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-10-13 12:32:10,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/886015588/07864db65b5c4935a1e39a6f0bcc4b43/FLAGd836b9893 [2020-10-13 12:32:10,877 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:32:10,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-10-13 12:32:10,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/886015588/07864db65b5c4935a1e39a6f0bcc4b43/FLAGd836b9893 [2020-10-13 12:32:11,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/886015588/07864db65b5c4935a1e39a6f0bcc4b43 [2020-10-13 12:32:11,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:32:11,181 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:32:11,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:32:11,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:32:11,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:32:11,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:32:11" (1/1) ... [2020-10-13 12:32:11,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:11, skipping insertion in model container [2020-10-13 12:32:11,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:32:11" (1/1) ... [2020-10-13 12:32:11,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:32:11,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:32:11,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:32:11,785 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:32:11,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:32:11,914 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:32:11,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:11 WrapperNode [2020-10-13 12:32:11,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:32:11,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:32:11,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:32:11,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:32:11,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:11" (1/1) ... [2020-10-13 12:32:11,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:11" (1/1) ... [2020-10-13 12:32:11,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:11" (1/1) ... [2020-10-13 12:32:11,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:11" (1/1) ... [2020-10-13 12:32:12,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:11" (1/1) ... [2020-10-13 12:32:12,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:11" (1/1) ... [2020-10-13 12:32:12,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:11" (1/1) ... [2020-10-13 12:32:12,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:32:12,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:32:12,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:32:12,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:32:12,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:11" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:32:12,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:32:12,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:32:12,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:32:12,122 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:32:12,122 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:32:12,122 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:32:12,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:32:12,123 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:32:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:32:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-13 12:32:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:32:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-13 12:32:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:32:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:32:12,125 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-13 12:32:12,125 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:32:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:32:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:32:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:32:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:32:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:32:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-13 12:32:12,128 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-13 12:32:12,128 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:32:12,128 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:32:12,129 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:32:12,129 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:32:12,129 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:32:12,129 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:32:12,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:32:12,130 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:32:12,130 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:32:12,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:32:12,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:32:12,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:32:12,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:32:12,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:32:12,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:32:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:32:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:32:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:32:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:32:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:32:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:32:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:32:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:32:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:32:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-13 12:32:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:32:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:32:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:32:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-13 12:32:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-13 12:32:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:32:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:32:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:32:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:32:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:32:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:32:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:32:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-13 12:32:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-13 12:32:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:32:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:32:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:32:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:32:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:32:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:32:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:32:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:32:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:32:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:32:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:32:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:32:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:32:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:32:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:32:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:32:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:32:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:32:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:32:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:32:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:32:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:32:12,143 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:32:12,143 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:32:12,143 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:32:12,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:32:12,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:32:12,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:32:13,195 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:32:13,195 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:32:13,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:32:13 BoogieIcfgContainer [2020-10-13 12:32:13,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:32:13,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:32:13,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:32:13,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:32:13,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:32:11" (1/3) ... [2020-10-13 12:32:13,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7407cfb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:32:13, skipping insertion in model container [2020-10-13 12:32:13,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:11" (2/3) ... [2020-10-13 12:32:13,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7407cfb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:32:13, skipping insertion in model container [2020-10-13 12:32:13,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:32:13" (3/3) ... [2020-10-13 12:32:13,209 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-10-13 12:32:13,220 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:32:13,228 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:32:13,243 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:32:13,270 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:32:13,271 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:32:13,271 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:32:13,271 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:32:13,271 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:32:13,272 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:32:13,272 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:32:13,272 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:32:13,295 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-10-13 12:32:13,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-13 12:32:13,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:13,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:32:13,307 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:13,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:13,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1896668179, now seen corresponding path program 1 times [2020-10-13 12:32:13,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:13,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046444710] [2020-10-13 12:32:13,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:13,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:13,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:14,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:15,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:15,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:18,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:18,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 12:32:18,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:32:18,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 12:32:18,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:32:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 12:32:19,010 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:19,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:19,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:19,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:19,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:19,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:19,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 12:32:19,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:19,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:19,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:19,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:19,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:19,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:19,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:19,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:19,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:19,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:19,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:19,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:19,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:19,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:19,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:19,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:19,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:19,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:19,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:19,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:19,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:19,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:19,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:19,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:19,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:19,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:19,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:19,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:19,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:19,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:19,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:19,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:19,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:19,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:19,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:19,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:19,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:19,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:19,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:19,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:19,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:19,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:19,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:19,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:19,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:19,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:19,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:32:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:19,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:19,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:19,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:19,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:19,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:19,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:19,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:19,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:19,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:19,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:32:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:19,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:19,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:19,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:19,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:19,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:19,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:19,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:19,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:19,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:19,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:19,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:19,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046444710] [2020-10-13 12:32:19,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:19,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:32:19,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763170065] [2020-10-13 12:32:19,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:32:19,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:19,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:32:19,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:32:19,181 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 3 states. [2020-10-13 12:32:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:20,420 INFO L93 Difference]: Finished difference Result 269 states and 354 transitions. [2020-10-13 12:32:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:32:20,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-13 12:32:20,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:20,437 INFO L225 Difference]: With dead ends: 269 [2020-10-13 12:32:20,437 INFO L226 Difference]: Without dead ends: 146 [2020-10-13 12:32:20,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:32:20,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-13 12:32:20,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 114. [2020-10-13 12:32:20,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-13 12:32:20,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2020-10-13 12:32:20,539 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 46 [2020-10-13 12:32:20,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:20,540 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2020-10-13 12:32:20,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:32:20,540 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2020-10-13 12:32:20,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-13 12:32:20,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:20,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:32:20,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:32:20,545 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:20,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:20,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1220507007, now seen corresponding path program 1 times [2020-10-13 12:32:20,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:20,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879295328] [2020-10-13 12:32:20,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:20,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:20,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:21,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:22,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:22,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:25,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:25,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 12:32:25,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:32:25,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-13 12:32:25,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:25,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:25,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:32:25,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:32:25,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:25,890 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:25,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:25,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:25,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:25,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:25,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:25,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 12:32:25,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:25,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:25,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:25,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:25,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:25,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:25,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:25,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:25,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:25,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:25,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:25,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:25,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:25,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:25,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:25,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:25,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:25,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:25,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:25,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:25,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:25,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:25,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:25,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:25,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:25,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:25,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:25,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:25,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:25,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:25,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:25,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:25,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:25,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:25,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:25,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:25,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:25,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:25,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:25,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:25,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:25,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:25,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:25,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:25,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:25,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:25,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:32:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:25,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:25,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:25,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:25,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:25,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:25,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:25,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:25,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:25,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:25,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:25,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:32:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:25,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:25,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:25,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:25,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:25,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:25,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:25,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:25,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:25,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:25,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:25,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:25,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879295328] [2020-10-13 12:32:25,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:25,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:32:25,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417009475] [2020-10-13 12:32:25,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:32:25,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:25,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:32:25,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:32:25,986 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 4 states. [2020-10-13 12:32:26,443 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:27,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:27,109 INFO L93 Difference]: Finished difference Result 193 states and 235 transitions. [2020-10-13 12:32:27,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:32:27,109 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-13 12:32:27,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:27,112 INFO L225 Difference]: With dead ends: 193 [2020-10-13 12:32:27,113 INFO L226 Difference]: Without dead ends: 130 [2020-10-13 12:32:27,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:32:27,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-13 12:32:27,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 105. [2020-10-13 12:32:27,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-13 12:32:27,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2020-10-13 12:32:27,163 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 47 [2020-10-13 12:32:27,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:27,164 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2020-10-13 12:32:27,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:32:27,164 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2020-10-13 12:32:27,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 12:32:27,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:27,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:32:27,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:32:27,167 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:27,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:27,167 INFO L82 PathProgramCache]: Analyzing trace with hash -421022276, now seen corresponding path program 1 times [2020-10-13 12:32:27,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:27,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159273209] [2020-10-13 12:32:27,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:27,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:27,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:27,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:27,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:30,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:30,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 12:32:30,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:32:30,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3575 [2020-10-13 12:32:30,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:32:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-13 12:32:30,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 12:32:30,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:31,070 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:31,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:31,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:31,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:31,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:31,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:31,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 12:32:31,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:31,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:31,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:31,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:31,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:31,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:31,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:31,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:31,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:31,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:31,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:31,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:31,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:31,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:31,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:31,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:31,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:31,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:31,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:31,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:31,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:31,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:31,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:31,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:31,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:31,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:31,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:31,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:31,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:31,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:31,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:31,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:31,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:31,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:31,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:31,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:31,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:31,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:31,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:31,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:31,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 12:32:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:31,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:31,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:31,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:31,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:31,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:31,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:31,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:31,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:31,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:31,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:31,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:32:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:31,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:31,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:31,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:31,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:31,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:32:31,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:31,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:31,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:31,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:31,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:31,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:31,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159273209] [2020-10-13 12:32:31,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:31,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:32:31,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409483408] [2020-10-13 12:32:31,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:32:31,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:31,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:32:31,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:32:31,181 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 7 states. [2020-10-13 12:32:31,594 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:32,416 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:32:32,745 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:32:32,995 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-13 12:32:33,477 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:32:33,776 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:32:34,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:34,296 INFO L93 Difference]: Finished difference Result 267 states and 339 transitions. [2020-10-13 12:32:34,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:32:34,297 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-10-13 12:32:34,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:34,301 INFO L225 Difference]: With dead ends: 267 [2020-10-13 12:32:34,301 INFO L226 Difference]: Without dead ends: 186 [2020-10-13 12:32:34,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-13 12:32:34,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-10-13 12:32:34,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 164. [2020-10-13 12:32:34,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-13 12:32:34,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 198 transitions. [2020-10-13 12:32:34,351 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 198 transitions. Word has length 51 [2020-10-13 12:32:34,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:34,352 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 198 transitions. [2020-10-13 12:32:34,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:32:34,352 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 198 transitions. [2020-10-13 12:32:34,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-13 12:32:34,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:34,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:32:34,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:32:34,356 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:34,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:34,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1299137592, now seen corresponding path program 1 times [2020-10-13 12:32:34,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:34,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886684867] [2020-10-13 12:32:34,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:34,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:34,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:34,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:35,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:39,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:39,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 12:32:39,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:32:39,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 12:32:39,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-13 12:32:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:39,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:39,668 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:39,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:39,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:39,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:39,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:39,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:39,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 12:32:39,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:39,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:39,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:39,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:39,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:39,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:39,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:39,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:39,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:39,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:39,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:39,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:39,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:39,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:39,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:39,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:39,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:39,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:39,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:39,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:39,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:39,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:39,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:39,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:39,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:39,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:39,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:39,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:39,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:39,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:39,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:39,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:39,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:39,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:39,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:39,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:39,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:39,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:39,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:39,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:39,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:39,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:39,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:39,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:39,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:39,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:39,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:32:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:39,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:39,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:39,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:39,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:32:39,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:32:39,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 12:32:39,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:39,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:39,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:32:39,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:39,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:39,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:32:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:39,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:39,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:39,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:32:39,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:39,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 12:32:39,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:39,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:39,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 12:32:39,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:39,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:39,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:32:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:39,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:39,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:39,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:32:39,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:39,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:32:39,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:39,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 12:32:39,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:39,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:39,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:39,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:32:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:39,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:39,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:39,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:39,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:39,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:39,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:39,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:39,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:39,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:39,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:39,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 12:32:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:39,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:39,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:39,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:39,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:39,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:39,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:39,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:39,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:39,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:39,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:39,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 12:32:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:39,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:39,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:39,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:39,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:39,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:39,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:39,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:39,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:39,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:39,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:39,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886684867] [2020-10-13 12:32:39,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:39,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:32:39,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500960223] [2020-10-13 12:32:39,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:32:39,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:39,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:32:39,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:32:39,941 INFO L87 Difference]: Start difference. First operand 164 states and 198 transitions. Second operand 7 states. [2020-10-13 12:32:40,817 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:32:41,154 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:32:41,421 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:32:41,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:41,941 INFO L93 Difference]: Finished difference Result 347 states and 453 transitions. [2020-10-13 12:32:41,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 12:32:41,942 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-10-13 12:32:41,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:41,946 INFO L225 Difference]: With dead ends: 347 [2020-10-13 12:32:41,947 INFO L226 Difference]: Without dead ends: 207 [2020-10-13 12:32:41,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:32:41,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-10-13 12:32:42,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 171. [2020-10-13 12:32:42,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-13 12:32:42,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 205 transitions. [2020-10-13 12:32:42,004 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 205 transitions. Word has length 74 [2020-10-13 12:32:42,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:42,006 INFO L479 AbstractCegarLoop]: Abstraction has 171 states and 205 transitions. [2020-10-13 12:32:42,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:32:42,006 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 205 transitions. [2020-10-13 12:32:42,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-13 12:32:42,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:42,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:32:42,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:32:42,016 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:42,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:42,016 INFO L82 PathProgramCache]: Analyzing trace with hash 789664502, now seen corresponding path program 1 times [2020-10-13 12:32:42,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:42,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309795450] [2020-10-13 12:32:42,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:42,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:42,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:44,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:44,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 12:32:44,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:32:44,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2640 [2020-10-13 12:32:44,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:44,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:32:44,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:44,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 12:32:44,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:44,899 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:44,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:44,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:44,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:44,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:44,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:44,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 12:32:44,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:44,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:44,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:44,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:32:44,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:44,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:44,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:44,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:44,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:44,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:44,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:44,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:44,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:44,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:44,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:32:44,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:44,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:44,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:44,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:44,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:44,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:44,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:44,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:32:44,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:44,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:44,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:45,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:45,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:45,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:45,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:45,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:45,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:45,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:45,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:45,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:45,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:45,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:45,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:45,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:45,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:45,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:45,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:45,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:45,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:45,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:32:45,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:45,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:32:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:45,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:45,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:45,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:32:45,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:45,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:32:45,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:45,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:45,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:32:45,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 12:32:45,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:45,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:32:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:45,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:45,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:45,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:32:45,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:45,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:32:45,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:45,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:45,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:45,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:32:45,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:45,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:32:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:45,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:45,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:45,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:32:45,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:45,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:45,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:45,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:45,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:45,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:32:45,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:45,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:32:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:45,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:45,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:45,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:45,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:45,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:45,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:45,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:45,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:45,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:45,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 12:32:45,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 12:32:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:45,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:45,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:45,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:45,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:45,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:45,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:45,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:45,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:45,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:45,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:45,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 12:32:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:45,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:45,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:45,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:45,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:45,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:45,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:45,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:45,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:45,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:45,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:45,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:45,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309795450] [2020-10-13 12:32:45,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:45,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 12:32:45,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648924046] [2020-10-13 12:32:45,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 12:32:45,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:45,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 12:32:45,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 12:32:45,122 INFO L87 Difference]: Start difference. First operand 171 states and 205 transitions. Second operand 6 states. [2020-10-13 12:32:45,463 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:32:45,983 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:32:47,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:47,785 INFO L93 Difference]: Finished difference Result 603 states and 805 transitions. [2020-10-13 12:32:47,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:32:47,786 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 74 [2020-10-13 12:32:47,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:47,792 INFO L225 Difference]: With dead ends: 603 [2020-10-13 12:32:47,792 INFO L226 Difference]: Without dead ends: 456 [2020-10-13 12:32:47,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:32:47,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-10-13 12:32:47,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 409. [2020-10-13 12:32:47,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-10-13 12:32:47,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 510 transitions. [2020-10-13 12:32:47,882 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 510 transitions. Word has length 74 [2020-10-13 12:32:47,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:47,882 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 510 transitions. [2020-10-13 12:32:47,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 12:32:47,882 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 510 transitions. [2020-10-13 12:32:47,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-13 12:32:47,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:47,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:32:47,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:32:47,885 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:47,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:47,885 INFO L82 PathProgramCache]: Analyzing trace with hash -985725863, now seen corresponding path program 1 times [2020-10-13 12:32:47,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:47,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311578218] [2020-10-13 12:32:47,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:47,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:47,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:50,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:50,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 12:32:50,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:32:50,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2312 [2020-10-13 12:32:50,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:50,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:32:50,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-13 12:32:50,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:32:50,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:50,456 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:50,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:50,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:50,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:50,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:50,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:50,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 12:32:50,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:50,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:50,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:50,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:50,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:50,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:50,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:50,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:50,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:50,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:50,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:50,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:50,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:50,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:50,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:50,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:50,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:50,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:50,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:50,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:50,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:50,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:50,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:50,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:50,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:50,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:50,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:50,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:50,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:50,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:50,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:50,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:50,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:50,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:50,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:50,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:50,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:50,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:50,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:50,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:50,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:50,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:50,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:50,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:32:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:50,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:50,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:50,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:32:50,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:50,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:32:50,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:32:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 12:32:50,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:32:50,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:50,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:32:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:50,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:50,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:50,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:32:50,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:50,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 12:32:50,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:50,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:50,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:50,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 12:32:50,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:50,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:32:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:50,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:50,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:50,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:32:50,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:50,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:50,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:50,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:50,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:50,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:32:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:50,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:50,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:50,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:50,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:50,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:50,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:50,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:50,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:50,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:50,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:50,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 12:32:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:50,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:50,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:50,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:50,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:50,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:50,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:50,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:50,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:50,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:50,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 12:32:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:50,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:50,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:50,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:50,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:50,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:50,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:50,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:50,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:50,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311578218] [2020-10-13 12:32:50,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:50,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:32:50,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330168730] [2020-10-13 12:32:50,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:32:50,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:50,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:32:50,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:32:50,705 INFO L87 Difference]: Start difference. First operand 409 states and 510 transitions. Second operand 8 states. [2020-10-13 12:32:51,937 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:52,165 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:32:52,405 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:52,668 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:32:53,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:53,215 INFO L93 Difference]: Finished difference Result 843 states and 1086 transitions. [2020-10-13 12:32:53,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 12:32:53,216 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-10-13 12:32:53,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:53,220 INFO L225 Difference]: With dead ends: 843 [2020-10-13 12:32:53,220 INFO L226 Difference]: Without dead ends: 458 [2020-10-13 12:32:53,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:32:53,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-10-13 12:32:53,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 419. [2020-10-13 12:32:53,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-10-13 12:32:53,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 520 transitions. [2020-10-13 12:32:53,312 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 520 transitions. Word has length 74 [2020-10-13 12:32:53,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:53,312 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 520 transitions. [2020-10-13 12:32:53,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:32:53,312 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 520 transitions. [2020-10-13 12:32:53,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-13 12:32:53,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:53,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:32:53,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 12:32:53,315 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:53,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:53,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1495198953, now seen corresponding path program 1 times [2020-10-13 12:32:53,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:53,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902698369] [2020-10-13 12:32:53,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:53,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:53,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:55,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:55,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 12:32:55,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:32:55,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2017 [2020-10-13 12:32:55,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:55,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:55,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-13 12:32:55,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:55,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:55,575 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:55,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:55,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:55,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:55,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:55,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:55,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 12:32:55,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:55,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:55,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:55,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:55,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:55,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:55,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:55,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:55,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:55,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:55,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:55,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:55,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:55,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:55,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:55,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:55,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:55,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:55,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:55,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:55,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:55,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:55,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:55,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:55,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:55,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:55,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:55,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:55,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:55,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:55,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:55,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:55,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:55,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:55,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:55,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:55,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:55,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:55,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:55,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:55,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:55,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:55,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:55,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:55,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:55,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:55,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:55,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:32:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:55,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:55,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:55,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:32:55,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:55,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:32:55,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:32:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:55,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:55,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:32:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:55,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:55,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:55,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:32:55,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:55,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:32:55,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:55,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:55,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 12:32:55,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:55,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:55,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:32:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:55,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:55,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:55,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:32:55,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:55,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:55,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:55,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 12:32:55,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:55,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:55,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:55,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:32:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:55,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:55,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:55,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:55,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:55,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:55,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:55,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:55,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:55,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:55,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:55,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 12:32:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:55,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:55,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:55,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:55,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:55,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:55,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:55,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:55,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:55,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:55,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 12:32:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:55,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:55,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:55,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:55,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:55,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:55,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:55,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:55,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:55,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:55,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:55,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:55,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902698369] [2020-10-13 12:32:55,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:55,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:32:55,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399711714] [2020-10-13 12:32:55,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:32:55,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:55,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:32:55,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:32:55,743 INFO L87 Difference]: Start difference. First operand 419 states and 520 transitions. Second operand 7 states. [2020-10-13 12:32:56,567 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:56,821 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:57,087 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:57,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:57,647 INFO L93 Difference]: Finished difference Result 769 states and 985 transitions. [2020-10-13 12:32:57,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 12:32:57,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-10-13 12:32:57,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:57,650 INFO L225 Difference]: With dead ends: 769 [2020-10-13 12:32:57,650 INFO L226 Difference]: Without dead ends: 374 [2020-10-13 12:32:57,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:32:57,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2020-10-13 12:32:57,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 348. [2020-10-13 12:32:57,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-10-13 12:32:57,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 423 transitions. [2020-10-13 12:32:57,715 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 423 transitions. Word has length 74 [2020-10-13 12:32:57,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:57,715 INFO L479 AbstractCegarLoop]: Abstraction has 348 states and 423 transitions. [2020-10-13 12:32:57,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:32:57,716 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 423 transitions. [2020-10-13 12:32:57,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 12:32:57,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:57,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:32:57,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 12:32:57,717 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:57,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:57,718 INFO L82 PathProgramCache]: Analyzing trace with hash -185153456, now seen corresponding path program 1 times [2020-10-13 12:32:57,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:57,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005643717] [2020-10-13 12:32:57,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:58,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:58,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 12:32:58,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:58,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 614 [2020-10-13 12:32:58,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 12:32:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 12:32:58,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:58,581 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:58,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:58,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:58,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:58,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:58,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:58,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 12:32:58,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:58,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:58,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:58,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:32:58,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:58,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:58,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:58,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:58,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:58,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:58,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:58,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:58,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:58,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:58,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:32:58,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:58,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:58,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:58,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:58,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:58,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:58,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:58,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:58,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:58,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:32:58,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:58,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:58,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:58,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:58,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:58,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:58,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:58,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:58,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:58,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:58,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:58,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:58,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:58,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:58,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:58,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:58,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:58,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:58,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:58,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:58,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:58,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:32:58,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:58,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:32:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:58,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:58,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:58,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:58,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:58,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:32:58,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:58,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:58,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:58,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:32:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:58,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:58,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:58,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:32:58,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:58,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:32:58,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:58,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:58,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:58,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 12:32:58,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:58,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:32:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:58,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:58,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:58,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:32:58,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:58,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:58,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:58,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:58,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:32:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:58,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:58,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:58,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:32:58,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:58,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:58,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:58,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:58,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:58,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:32:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:58,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:58,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:58,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:58,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:58,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:32:58,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:58,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:58,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:58,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:58,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 12:32:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:58,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:58,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:58,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:58,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:58,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:58,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:58,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:58,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:58,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:58,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:58,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 12:32:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:58,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:58,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:58,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:58,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:58,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:58,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:58,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:58,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:58,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:58,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:58,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:58,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005643717] [2020-10-13 12:32:58,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:58,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 12:32:58,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13883621] [2020-10-13 12:32:58,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 12:32:58,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:58,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 12:32:58,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 12:32:58,871 INFO L87 Difference]: Start difference. First operand 348 states and 423 transitions. Second operand 9 states. [2020-10-13 12:32:59,559 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:33:00,289 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:33:00,553 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:33:00,815 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:33:01,039 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:33:01,381 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:33:02,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:33:02,701 INFO L93 Difference]: Finished difference Result 1018 states and 1319 transitions. [2020-10-13 12:33:02,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 12:33:02,702 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-10-13 12:33:02,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:33:02,708 INFO L225 Difference]: With dead ends: 1018 [2020-10-13 12:33:02,708 INFO L226 Difference]: Without dead ends: 694 [2020-10-13 12:33:02,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-10-13 12:33:02,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2020-10-13 12:33:02,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 645. [2020-10-13 12:33:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-10-13 12:33:02,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 793 transitions. [2020-10-13 12:33:02,835 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 793 transitions. Word has length 78 [2020-10-13 12:33:02,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:33:02,835 INFO L479 AbstractCegarLoop]: Abstraction has 645 states and 793 transitions. [2020-10-13 12:33:02,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 12:33:02,835 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 793 transitions. [2020-10-13 12:33:02,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 12:33:02,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:33:02,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:33:02,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 12:33:02,838 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:33:02,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:33:02,839 INFO L82 PathProgramCache]: Analyzing trace with hash -341045236, now seen corresponding path program 1 times [2020-10-13 12:33:02,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:33:02,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [626497981] [2020-10-13 12:33:02,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:33:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:33:02,872 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:33:02,873 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:33:02,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 12:33:02,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:33:02 BoogieIcfgContainer [2020-10-13 12:33:02,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:33:02,904 INFO L168 Benchmark]: Toolchain (without parser) took 51723.22 ms. Allocated memory was 141.0 MB in the beginning and 860.4 MB in the end (delta: 719.3 MB). Free memory was 103.2 MB in the beginning and 121.1 MB in the end (delta: -17.9 MB). Peak memory consumption was 701.4 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:02,905 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 12:33:02,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 733.21 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 103.0 MB in the beginning and 173.0 MB in the end (delta: -70.0 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:02,906 INFO L168 Benchmark]: Boogie Preprocessor took 107.86 ms. Allocated memory is still 203.9 MB. Free memory was 173.0 MB in the beginning and 169.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:02,907 INFO L168 Benchmark]: RCFGBuilder took 1177.05 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 169.0 MB in the beginning and 198.5 MB in the end (delta: -29.4 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:02,908 INFO L168 Benchmark]: TraceAbstraction took 49700.30 ms. Allocated memory was 235.9 MB in the beginning and 860.4 MB in the end (delta: 624.4 MB). Free memory was 197.1 MB in the beginning and 121.1 MB in the end (delta: 75.9 MB). Peak memory consumption was 700.4 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:02,911 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 733.21 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 103.0 MB in the beginning and 173.0 MB in the end (delta: -70.0 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.86 ms. Allocated memory is still 203.9 MB. Free memory was 173.0 MB in the beginning and 169.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1177.05 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 169.0 MB in the beginning and 198.5 MB in the end (delta: -29.4 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 49700.30 ms. Allocated memory was 235.9 MB in the beginning and 860.4 MB in the end (delta: 624.4 MB). Free memory was 197.1 MB in the beginning and 121.1 MB in the end (delta: 75.9 MB). Peak memory consumption was 700.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 145]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L250] int pumpRunning = 0; [L251] int systemActive = 1; [L455] int cleanupTimeShifts = 4; [L720] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L528] int retValue_acc ; [L529] int tmp ; [L533] FCALL select_helpers() [L534] FCALL select_features() [L535] CALL, EXPR valid_product() [L446] int retValue_acc ; [L449] retValue_acc = 1 [L450] return (retValue_acc); [L535] RET, EXPR valid_product() [L535] tmp = valid_product() [L537] COND TRUE \read(tmp) [L539] FCALL setup() [L540] CALL runTest() [L522] CALL test() [L181] int splverifierCounter ; [L182] int tmp ; [L183] int tmp___0 ; [L184] int tmp___1 ; [L185] int tmp___2 ; [L188] splverifierCounter = 0 [L190] COND TRUE 1 [L192] COND TRUE splverifierCounter < 4 [L198] tmp = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp) [L202] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L202] RET waterRise() [L208] tmp___0 = __VERIFIER_nondet_int() [L210] COND TRUE \read(tmp___0) [L212] CALL changeMethaneLevel() [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 [L212] RET changeMethaneLevel() [L218] tmp___2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp___2) [L235] CALL timeShift() [L257] COND FALSE !(\read(pumpRunning)) [L264] COND TRUE \read(systemActive) [L266] CALL processEnvironment() [L286] int tmp ; [L289] COND TRUE ! pumpRunning [L291] CALL, EXPR isHighWaterLevel() [L383] int retValue_acc ; [L384] int tmp ; [L385] int tmp___0 ; [L389] CALL, EXPR isHighWaterSensorDry() [L127] int retValue_acc ; [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); [L389] RET, EXPR isHighWaterSensorDry() [L389] tmp = isHighWaterSensorDry() [L391] COND FALSE !(\read(tmp)) [L394] tmp___0 = 1 [L396] retValue_acc = tmp___0 [L397] return (retValue_acc); [L291] RET, EXPR isHighWaterLevel() [L291] tmp = isHighWaterLevel() [L293] COND TRUE \read(tmp) [L295] CALL activatePump() [L314] pumpRunning = 1 [L295] RET activatePump() [L266] RET processEnvironment() [L272] CALL __utac_acc__Specification1_spec__1() [L152] int tmp ; [L153] int tmp___0 ; [L157] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L157] RET, EXPR isMethaneLevelCritical() [L157] tmp = isMethaneLevelCritical() [L159] COND TRUE \read(tmp) [L161] CALL, EXPR isPumpRunning() [L338] int retValue_acc ; [L341] retValue_acc = pumpRunning [L342] return (retValue_acc); [L161] RET, EXPR isPumpRunning() [L161] tmp___0 = isPumpRunning() [L163] COND TRUE \read(tmp___0) [L165] CALL __automaton_fail() [L145] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 49.6s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 18.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 854 SDtfs, 1270 SDslu, 873 SDs, 0 SdLazy, 3351 SolverSat, 739 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 238 GetRequests, 170 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=645occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 276 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 29.7s InterpolantComputationTime, 600 NumberOfCodeBlocks, 600 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 510 ConstructedInterpolants, 0 QuantifiedInterpolants, 146164 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...