/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:30:29,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:30:29,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:30:29,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:30:29,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:30:29,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:30:29,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:30:29,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:30:29,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:30:29,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:30:29,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:30:29,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:30:29,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:30:29,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:30:29,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:30:29,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:30:29,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:30:29,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:30:29,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:30:29,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:30:29,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:30:29,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:30:29,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:30:29,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:30:29,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:30:29,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:30:29,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:30:29,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:30:29,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:30:29,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:30:29,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:30:29,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:30:29,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:30:29,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:30:29,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:30:29,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:30:29,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:30:29,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:30:29,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:30:29,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:30:29,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:30:29,771 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 06:30:29,798 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:30:29,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:30:29,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:30:29,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:30:29,800 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:30:29,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:30:29,800 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:30:29,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:30:29,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:30:29,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:30:29,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:30:29,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:30:29,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:30:29,802 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:30:29,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:30:29,802 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:30:29,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:30:29,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:30:29,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:30:29,803 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:30:29,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:30:29,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:30:29,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:30:29,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:30:29,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:30:29,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:30:29,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:30:29,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:30:29,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:30:29,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:30:30,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:30:30,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:30:30,295 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:30:30,297 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:30:30,299 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:30:30,300 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c [2020-09-25 06:30:30,381 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/641e617d8/1c57301899c4498e868a4b5ddbc9866f/FLAGd43fac515 [2020-09-25 06:30:30,986 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:30:30,990 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c [2020-09-25 06:30:31,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/641e617d8/1c57301899c4498e868a4b5ddbc9866f/FLAGd43fac515 [2020-09-25 06:30:31,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/641e617d8/1c57301899c4498e868a4b5ddbc9866f [2020-09-25 06:30:31,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:30:31,283 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:30:31,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:30:31,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:30:31,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:30:31,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:30:31" (1/1) ... [2020-09-25 06:30:31,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ac6c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:31, skipping insertion in model container [2020-09-25 06:30:31,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:30:31" (1/1) ... [2020-09-25 06:30:31,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:30:31,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:30:31,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:30:31,872 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:30:31,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:30:31,999 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:30:31,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:31 WrapperNode [2020-09-25 06:30:32,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:30:32,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:30:32,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:30:32,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:30:32,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:31" (1/1) ... [2020-09-25 06:30:32,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:31" (1/1) ... [2020-09-25 06:30:32,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:31" (1/1) ... [2020-09-25 06:30:32,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:31" (1/1) ... [2020-09-25 06:30:32,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:31" (1/1) ... [2020-09-25 06:30:32,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:31" (1/1) ... [2020-09-25 06:30:32,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:31" (1/1) ... [2020-09-25 06:30:32,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:30:32,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:30:32,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:30:32,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:30:32,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:30:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:30:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:30:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:30:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:30:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:30:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:30:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:30:32,215 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:30:32,215 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:30:32,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:30:32,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:30:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:30:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:30:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:30:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:30:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:30:32,217 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:30:32,217 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:30:32,217 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:30:32,217 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:30:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:30:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:30:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:30:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:30:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:30:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:30:32,219 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:30:32,219 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:30:32,219 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:30:32,219 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:30:32,219 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:30:32,219 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:30:32,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:30:32,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:30:32,220 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:30:32,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:30:32,220 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:30:32,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 06:30:32,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 06:30:32,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 06:30:32,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:30:32,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:30:32,221 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:30:32,221 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:30:32,221 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:30:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:30:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:30:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:30:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:30:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:30:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:30:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 06:30:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:30:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:30:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:30:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:30:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:30:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:30:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:30:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:30:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:30:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:30:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:30:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:30:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:30:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:30:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:30:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:30:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:30:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:30:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:30:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:30:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:30:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:30:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:30:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:30:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:30:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:30:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:30:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:30:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:30:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:30:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:30:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:30:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:30:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 06:30:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 06:30:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:30:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:30:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:30:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:30:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:30:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:30:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:30:33,397 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:30:33,397 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:30:33,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:30:33 BoogieIcfgContainer [2020-09-25 06:30:33,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:30:33,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:30:33,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:30:33,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:30:33,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:30:31" (1/3) ... [2020-09-25 06:30:33,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270158be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:30:33, skipping insertion in model container [2020-09-25 06:30:33,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:31" (2/3) ... [2020-09-25 06:30:33,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270158be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:30:33, skipping insertion in model container [2020-09-25 06:30:33,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:30:33" (3/3) ... [2020-09-25 06:30:33,414 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2020-09-25 06:30:33,426 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:30:33,439 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:30:33,460 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:30:33,498 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:30:33,498 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:30:33,498 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:30:33,498 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:30:33,498 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:30:33,499 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:30:33,499 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:30:33,499 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:30:33,527 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2020-09-25 06:30:33,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 06:30:33,548 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:30:33,549 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:30:33,550 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:30:33,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:30:33,556 INFO L82 PathProgramCache]: Analyzing trace with hash -956249494, now seen corresponding path program 1 times [2020-09-25 06:30:33,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:30:33,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809863432] [2020-09-25 06:30:33,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:30:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:34,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:34,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:35,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:35,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:38,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:38,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 06:30:38,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:30:38,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 06:30:38,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:38,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:38,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:38,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:30:38,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:38,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:30:39,467 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:30:39,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:30:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:39,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:39,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:39,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:30:39,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:39,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 06:30:39,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:39,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:39,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:39,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:39,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:39,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:39,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:30:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:39,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:39,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:39,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:39,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:39,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:30:39,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:39,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:39,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:39,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:39,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:39,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:39,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:30:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:39,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:39,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:39,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:39,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:39,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:30:39,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:39,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:39,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:39,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:30:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:39,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:39,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:39,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:39,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:39,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:30:39,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:39,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:39,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:39,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:39,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:39,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:39,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:30:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:39,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:39,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:39,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:39,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:39,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:30:39,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:39,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:39,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:39,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:39,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:39,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:39,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:30:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:39,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:39,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:39,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:30:39,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:39,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:39,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:39,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:39,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:39,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:39,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:30:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:39,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:39,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:39,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:30:39,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:39,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:30:39,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:39,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:39,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:39,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:30:39,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:39,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:39,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:30:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:39,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:39,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:39,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:39,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:39,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:30:39,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:39,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:39,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:39,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:30:39,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 06:30:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:39,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:39,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:39,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:39,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:39,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:30:39,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:39,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:39,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:39,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:30:39,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:39,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:30:39,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 06:30:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:39,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:39,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:39,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:39,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:39,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:30:39,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:39,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:39,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:39,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:30:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:39,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:30:39,926 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:30:39,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809863432] [2020-09-25 06:30:39,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:30:39,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:30:39,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331845862] [2020-09-25 06:30:39,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:30:39,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:30:39,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:30:39,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:30:39,976 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 4 states. [2020-09-25 06:30:41,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:30:41,372 INFO L93 Difference]: Finished difference Result 458 states and 539 transitions. [2020-09-25 06:30:41,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:30:41,375 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 06:30:41,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:30:41,413 INFO L225 Difference]: With dead ends: 458 [2020-09-25 06:30:41,413 INFO L226 Difference]: Without dead ends: 294 [2020-09-25 06:30:41,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:30:41,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-25 06:30:41,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 249. [2020-09-25 06:30:41,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 06:30:41,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 270 transitions. [2020-09-25 06:30:41,642 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 270 transitions. Word has length 160 [2020-09-25 06:30:41,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:30:41,646 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 270 transitions. [2020-09-25 06:30:41,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:30:41,646 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 270 transitions. [2020-09-25 06:30:41,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 06:30:41,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:30:41,659 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:30:41,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:30:41,659 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:30:41,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:30:41,660 INFO L82 PathProgramCache]: Analyzing trace with hash 475672823, now seen corresponding path program 1 times [2020-09-25 06:30:41,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:30:41,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208160914] [2020-09-25 06:30:41,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:30:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:41,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:41,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:43,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:44,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:45,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:46,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:46,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 06:30:46,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:30:46,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5084 [2020-09-25 06:30:46,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:46,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:46,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:30:46,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:30:46,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:30:46,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:47,276 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:30:47,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:30:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:47,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:47,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:47,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:30:47,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:47,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 06:30:47,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:47,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:47,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:47,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:47,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:47,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:47,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:30:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:47,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:47,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:47,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:47,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:47,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:30:47,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:47,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:47,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:47,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:47,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:47,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:47,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:30:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:47,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:47,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:47,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:47,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:47,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:47,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:47,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:47,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:47,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:47,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:47,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:30:47,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:30:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:47,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:47,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:47,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:47,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:47,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:30:47,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:47,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:47,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:47,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:47,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:30:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:47,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:47,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:47,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:47,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:47,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:47,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:47,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:47,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:47,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:47,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:47,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:47,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:30:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:47,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:47,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:47,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:30:47,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:47,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:30:47,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:47,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:47,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:47,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:47,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:47,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:47,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:30:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:47,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:47,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:47,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:30:47,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:47,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:30:47,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:47,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:47,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:30:47,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:47,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:47,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:30:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:47,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:47,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:47,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:47,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:47,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:30:47,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:47,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:47,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:47,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:47,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:47,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:30:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:47,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:47,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:47,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:47,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:47,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:30:47,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:47,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:47,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:47,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:30:47,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:47,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:47,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:30:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:47,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:47,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:47,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:47,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:47,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:30:47,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:47,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:47,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:47,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:30:47,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:47,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:47,758 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:30:47,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208160914] [2020-09-25 06:30:47,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:30:47,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:30:47,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489846977] [2020-09-25 06:30:47,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:30:47,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:30:47,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:30:47,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:30:47,767 INFO L87 Difference]: Start difference. First operand 249 states and 270 transitions. Second operand 5 states. [2020-09-25 06:30:48,519 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:30:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:30:49,470 INFO L93 Difference]: Finished difference Result 378 states and 425 transitions. [2020-09-25 06:30:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:30:49,470 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 06:30:49,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:30:49,474 INFO L225 Difference]: With dead ends: 378 [2020-09-25 06:30:49,474 INFO L226 Difference]: Without dead ends: 283 [2020-09-25 06:30:49,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:30:49,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-25 06:30:49,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 239. [2020-09-25 06:30:49,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 06:30:49,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 257 transitions. [2020-09-25 06:30:49,521 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 257 transitions. Word has length 161 [2020-09-25 06:30:49,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:30:49,521 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 257 transitions. [2020-09-25 06:30:49,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:30:49,522 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 257 transitions. [2020-09-25 06:30:49,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 06:30:49,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:30:49,524 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:30:49,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:30:49,525 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:30:49,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:30:49,525 INFO L82 PathProgramCache]: Analyzing trace with hash 408311169, now seen corresponding path program 1 times [2020-09-25 06:30:49,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:30:49,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071127925] [2020-09-25 06:30:49,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:30:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:49,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:50,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:50,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:53,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:54,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:54,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 06:30:54,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:30:54,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-25 06:30:54,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:54,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:54,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:30:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 06:30:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 06:30:54,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:54,984 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:30:54,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:30:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:55,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:55,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:55,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:30:55,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:55,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 06:30:55,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:55,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:55,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:30:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 06:30:55,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:55,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:30:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:55,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:55,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:55,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:55,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:55,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:30:55,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:55,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:55,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:30:55,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:55,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:30:55,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:55,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:30:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:55,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:55,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:55,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:55,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:55,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:30:55,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:55,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:30:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:55,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:30:55,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:55,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:30:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:55,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:55,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:55,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:55,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:55,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:30:55,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:55,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:55,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:30:55,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:55,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:30:55,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:55,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:30:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:55,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:55,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:55,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:55,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:55,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:30:55,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:55,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:55,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:30:55,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:55,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:30:55,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:55,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:30:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:55,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:55,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:55,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:30:55,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:55,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:30:55,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:55,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:55,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:30:55,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:55,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:30:55,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:55,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:30:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:55,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:55,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:55,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:30:55,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:55,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:30:55,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:55,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:55,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:30:55,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:55,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 06:30:55,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:55,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:30:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:55,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:55,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:55,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:55,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:55,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:55,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:55,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:55,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:55,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:55,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:55,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:55,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 06:30:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:55,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:55,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:55,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:55,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:55,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:55,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:55,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:30:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:55,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:55,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 06:30:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:55,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:55,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:55,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:55,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:55,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:55,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:55,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:55,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:55,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:30:55,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:55,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:55,446 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:30:55,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071127925] [2020-09-25 06:30:55,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:30:55,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:30:55,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129675275] [2020-09-25 06:30:55,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:30:55,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:30:55,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:30:55,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:30:55,454 INFO L87 Difference]: Start difference. First operand 239 states and 257 transitions. Second operand 5 states. [2020-09-25 06:30:56,005 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:30:57,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:30:57,336 INFO L93 Difference]: Finished difference Result 537 states and 611 transitions. [2020-09-25 06:30:57,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:30:57,337 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-09-25 06:30:57,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:30:57,342 INFO L225 Difference]: With dead ends: 537 [2020-09-25 06:30:57,342 INFO L226 Difference]: Without dead ends: 413 [2020-09-25 06:30:57,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:30:57,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-09-25 06:30:57,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 351. [2020-09-25 06:30:57,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-09-25 06:30:57,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 386 transitions. [2020-09-25 06:30:57,450 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 386 transitions. Word has length 170 [2020-09-25 06:30:57,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:30:57,453 INFO L479 AbstractCegarLoop]: Abstraction has 351 states and 386 transitions. [2020-09-25 06:30:57,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:30:57,453 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 386 transitions. [2020-09-25 06:30:57,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-25 06:30:57,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:30:57,456 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:30:57,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:30:57,457 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:30:57,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:30:57,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1346113494, now seen corresponding path program 1 times [2020-09-25 06:30:57,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:30:57,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78722518] [2020-09-25 06:30:57,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:30:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:57,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:57,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:58,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:00,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:01,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:02,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:02,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-25 06:31:02,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:31:02,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 06:31:02,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:02,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:02,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:31:02,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 06:31:02,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:31:02,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:02,799 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:31:02,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:31:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:02,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:02,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:02,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:31:02,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:02,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 06:31:02,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:02,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:02,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:02,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:02,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:02,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:02,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:31:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:02,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:02,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:02,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:02,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:02,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:02,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:02,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:02,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:02,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:02,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:02,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:02,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:31:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:02,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:02,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:02,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:02,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:02,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:02,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:02,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:02,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:02,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:02,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:02,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:02,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:31:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:02,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:02,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:02,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:02,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:02,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:31:02,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:02,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:02,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:02,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:31:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:02,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:02,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:02,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:02,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:02,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:02,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:02,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:02,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:02,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:02,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:02,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:02,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:31:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:02,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:02,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:02,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:31:02,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:02,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:02,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:02,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:02,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:02,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:02,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:02,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:02,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:31:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:02,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:02,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:02,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:31:02,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:02,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:02,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:02,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:02,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:02,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:02,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:02,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:02,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:31:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:02,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:02,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:02,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:02,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:02,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:02,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:02,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:02,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:02,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:02,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:02,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:03,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 06:31:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:03,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:03,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:03,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:31:03,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:03,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:31:03,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:03,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:31:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:31:03,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:31:03,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:03,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:31:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:03,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:03,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:03,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:03,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:03,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:31:03,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:03,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:03,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:31:03,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:03,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:31:03,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:03,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 06:31:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:03,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:03,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:03,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:03,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:03,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:31:03,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:03,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:03,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:03,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:31:03,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:03,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:03,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 06:31:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:03,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:03,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:03,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:03,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:03,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:31:03,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:03,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:03,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:03,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:31:03,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:03,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:03,171 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:31:03,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78722518] [2020-09-25 06:31:03,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:31:03,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:31:03,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151966365] [2020-09-25 06:31:03,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:31:03,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:31:03,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:31:03,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:31:03,178 INFO L87 Difference]: Start difference. First operand 351 states and 386 transitions. Second operand 8 states. [2020-09-25 06:31:03,965 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:31:05,862 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:31:06,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:31:06,595 INFO L93 Difference]: Finished difference Result 899 states and 1057 transitions. [2020-09-25 06:31:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:31:06,597 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 178 [2020-09-25 06:31:06,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:31:06,605 INFO L225 Difference]: With dead ends: 899 [2020-09-25 06:31:06,605 INFO L226 Difference]: Without dead ends: 663 [2020-09-25 06:31:06,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2020-09-25 06:31:06,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2020-09-25 06:31:06,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 564. [2020-09-25 06:31:06,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-09-25 06:31:06,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 627 transitions. [2020-09-25 06:31:06,717 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 627 transitions. Word has length 178 [2020-09-25 06:31:06,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:31:06,718 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 627 transitions. [2020-09-25 06:31:06,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:31:06,718 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 627 transitions. [2020-09-25 06:31:06,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 06:31:06,721 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:31:06,721 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:31:06,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:31:06,721 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:31:06,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:31:06,722 INFO L82 PathProgramCache]: Analyzing trace with hash -116734929, now seen corresponding path program 1 times [2020-09-25 06:31:06,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:31:06,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648847379] [2020-09-25 06:31:06,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:31:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:06,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:07,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:07,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:09,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:11,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:11,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 06:31:11,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:31:11,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 06:31:11,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:11,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:11,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:31:11,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 06:31:11,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 06:31:11,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:12,126 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:31:12,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:31:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:12,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:12,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:12,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:31:12,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:12,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 06:31:12,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:12,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:12,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:12,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:12,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:12,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:12,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:31:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:12,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:12,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:12,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:12,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:12,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:31:12,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:12,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:12,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:12,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:12,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:12,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:12,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:31:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:12,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:12,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:12,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:12,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:12,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:12,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:12,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:12,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:12,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:12,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:12,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:12,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:31:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:12,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:12,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:12,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:12,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:12,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:31:12,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:12,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:12,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:12,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:12,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:12,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:12,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:31:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:12,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:12,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:12,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:12,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:12,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:12,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:12,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:12,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:12,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:12,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:31:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:12,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:12,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:12,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:31:12,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:12,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:12,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:12,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:12,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:12,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 06:31:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:12,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:12,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:12,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:31:12,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:12,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:31:12,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:12,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:31:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:31:12,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:12,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:31:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:12,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:12,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:12,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:31:12,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:12,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:31:12,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:12,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:12,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:31:12,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:12,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 06:31:12,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:12,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:31:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:12,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:12,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:12,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:12,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:12,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:12,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:12,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:12,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:12,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 06:31:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:12,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:12,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:12,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:12,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:12,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:31:12,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:12,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:12,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:31:12,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:12,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:31:12,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:12,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 06:31:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:12,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:12,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:12,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:12,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:12,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:31:12,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:12,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:31:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:12,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:31:12,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:12,514 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:31:12,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648847379] [2020-09-25 06:31:12,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:31:12,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 06:31:12,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227020423] [2020-09-25 06:31:12,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:31:12,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:31:12,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:31:12,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:31:12,517 INFO L87 Difference]: Start difference. First operand 564 states and 627 transitions. Second operand 10 states. [2020-09-25 06:31:13,140 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:31:14,168 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:31:14,408 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 193