/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:03:35,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:03:35,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:03:35,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:03:35,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:03:35,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:03:35,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:03:35,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:03:35,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:03:35,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:03:35,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:03:35,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:03:35,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:03:35,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:03:35,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:03:35,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:03:35,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:03:35,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:03:35,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:03:35,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:03:35,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:03:35,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:03:35,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:03:35,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:03:35,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:03:35,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:03:35,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:03:35,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:03:35,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:03:35,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:03:35,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:03:35,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:03:35,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:03:35,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:03:35,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:03:35,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:03:35,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:03:35,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:03:35,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:03:35,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:03:35,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:03:35,199 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 11:03:35,243 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:03:35,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:03:35,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:03:35,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:03:35,245 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:03:35,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:03:35,246 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:03:35,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:03:35,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:03:35,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:03:35,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:03:35,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:03:35,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:03:35,247 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:03:35,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:03:35,248 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:03:35,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:03:35,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:03:35,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:03:35,249 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:03:35,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:03:35,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:03:35,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:03:35,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:03:35,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:03:35,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:03:35,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:03:35,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:03:35,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:03:35,251 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:03:35,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:03:35,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:03:35,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:03:35,754 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:03:35,755 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:03:35,756 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-09-25 11:03:35,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b989ac00/ebdd8d4822ae4648908dba807ae549b0/FLAG917eb1094 [2020-09-25 11:03:36,493 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:03:36,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-09-25 11:03:36,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b989ac00/ebdd8d4822ae4648908dba807ae549b0/FLAG917eb1094 [2020-09-25 11:03:36,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b989ac00/ebdd8d4822ae4648908dba807ae549b0 [2020-09-25 11:03:36,754 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:03:36,761 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:03:36,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:03:36,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:03:36,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:03:36,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:03:36" (1/1) ... [2020-09-25 11:03:36,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:36, skipping insertion in model container [2020-09-25 11:03:36,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:03:36" (1/1) ... [2020-09-25 11:03:36,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:03:36,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:03:37,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:03:37,463 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:03:37,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:03:37,599 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:03:37,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:37 WrapperNode [2020-09-25 11:03:37,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:03:37,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:03:37,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:03:37,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:03:37,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:37" (1/1) ... [2020-09-25 11:03:37,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:37" (1/1) ... [2020-09-25 11:03:37,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:37" (1/1) ... [2020-09-25 11:03:37,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:37" (1/1) ... [2020-09-25 11:03:37,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:37" (1/1) ... [2020-09-25 11:03:37,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:37" (1/1) ... [2020-09-25 11:03:37,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:37" (1/1) ... [2020-09-25 11:03:37,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:03:37,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:03:37,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:03:37,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:03:37,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:37" (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 11:03:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:03:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:03:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 11:03:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 11:03:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 11:03:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 11:03:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 11:03:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 11:03:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 11:03:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 11:03:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 11:03:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 11:03:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:03:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 11:03:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 11:03:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 11:03:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 11:03:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 11:03:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 11:03:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 11:03:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 11:03:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 11:03:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 11:03:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 11:03:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 11:03:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 11:03:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 11:03:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 11:03:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 11:03:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 11:03:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 11:03:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 11:03:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 11:03:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:03:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 11:03:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 11:03:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 11:03:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 11:03:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 11:03:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 11:03:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 11:03:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 11:03:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 11:03:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:03:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:03:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 11:03:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 11:03:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 11:03:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 11:03:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 11:03:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 11:03:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 11:03:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 11:03:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 11:03:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 11:03:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 11:03:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 11:03:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 11:03:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 11:03:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 11:03:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 11:03:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:03:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 11:03:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 11:03:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 11:03:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 11:03:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 11:03:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 11:03:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:03:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 11:03:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:03:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:03:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 11:03:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:03:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:03:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:03:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:03:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 11:03:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:03:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 11:03:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 11:03:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:03:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 11:03:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 11:03:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 11:03:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 11:03:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 11:03:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 11:03:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 11:03:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 11:03:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 11:03:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 11:03:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 11:03:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:03:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 11:03:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 11:03:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 11:03:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:03:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 11:03:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:03:39,202 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:03:39,203 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 11:03:39,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:03:39 BoogieIcfgContainer [2020-09-25 11:03:39,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:03:39,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:03:39,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:03:39,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:03:39,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:03:36" (1/3) ... [2020-09-25 11:03:39,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cdafb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:03:39, skipping insertion in model container [2020-09-25 11:03:39,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:03:37" (2/3) ... [2020-09-25 11:03:39,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cdafb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:03:39, skipping insertion in model container [2020-09-25 11:03:39,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:03:39" (3/3) ... [2020-09-25 11:03:39,232 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2020-09-25 11:03:39,246 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:03:39,261 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:03:39,287 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:03:39,326 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:03:39,326 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:03:39,327 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:03:39,327 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:03:39,328 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:03:39,328 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:03:39,328 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:03:39,329 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:03:39,373 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states. [2020-09-25 11:03:39,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 11:03:39,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:03:39,407 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 11:03:39,408 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:03:39,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:03:39,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1833758350, now seen corresponding path program 1 times [2020-09-25 11:03:39,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:03:39,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463968662] [2020-09-25 11:03:39,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:03:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:40,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:40,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:40,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:41,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:42,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:44,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:44,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 11:03:44,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:03:44,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 11:03:44,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:44,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 11:03:44,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 11:03:44,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 11:03:44,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:03:45,410 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:03:45,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:03:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:45,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:45,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:45,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 11:03:45,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:45,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-09-25 11:03:45,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:45,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:45,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:45,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 11:03:45,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:45,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 11:03:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:45,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:45,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:45,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:03:45,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:45,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:03:45,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:45,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:45,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:45,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:45,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:03:45,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:03:45,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 11:03:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:45,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:45,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:45,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:03:45,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:45,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:03:45,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:45,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:03:45,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:45,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 11:03:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:45,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:45,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:45,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:45,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:45,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:03:45,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:45,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:45,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:45,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:45,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:03:45,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:45,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 11:03:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:45,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:45,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:45,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:03:45,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:03:45,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:45,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:45,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:45,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:45,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:03:45,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:45,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 11:03:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:45,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:45,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:45,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:03:45,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:45,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:03:45,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:45,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:45,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:45,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:45,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:03:45,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:45,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:03:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:45,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:45,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:45,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:03:45,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:45,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:03:45,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:45,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:45,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:45,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:45,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 11:03:45,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:45,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:03:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:45,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:46,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:46,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:46,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:46,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:46,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:46,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:46,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:46,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:46,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:46,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:46,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 11:03:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:46,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:46,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:46,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:46,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:46,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:03:46,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:46,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:46,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:03:46,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:46,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:03:46,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:46,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 11:03:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:46,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:46,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:46,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:46,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:46,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:03:46,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:46,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:03:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:46,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:03:46,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:46,105 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 11:03:46,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463968662] [2020-09-25 11:03:46,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:03:46,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 11:03:46,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396800033] [2020-09-25 11:03:46,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 11:03:46,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:03:46,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 11:03:46,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:03:46,140 INFO L87 Difference]: Start difference. First operand 347 states. Second operand 9 states. [2020-09-25 11:03:47,001 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:03:48,054 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 11:03:48,350 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 11:03:49,812 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:03:50,094 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:03:50,470 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:03:50,994 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:03:51,328 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 11:03:51,664 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 11:03:52,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:03:52,363 INFO L93 Difference]: Finished difference Result 660 states and 788 transitions. [2020-09-25 11:03:52,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 11:03:52,369 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-25 11:03:52,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:03:52,392 INFO L225 Difference]: With dead ends: 660 [2020-09-25 11:03:52,392 INFO L226 Difference]: Without dead ends: 437 [2020-09-25 11:03:52,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 11:03:52,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-09-25 11:03:52,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 391. [2020-09-25 11:03:52,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-09-25 11:03:52,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 436 transitions. [2020-09-25 11:03:52,554 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 436 transitions. Word has length 160 [2020-09-25 11:03:52,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:03:52,556 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 436 transitions. [2020-09-25 11:03:52,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 11:03:52,556 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 436 transitions. [2020-09-25 11:03:52,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-25 11:03:52,562 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:03:52,563 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:52,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:03:52,563 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:03:52,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:03:52,564 INFO L82 PathProgramCache]: Analyzing trace with hash -816624676, now seen corresponding path program 1 times [2020-09-25 11:03:52,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:03:52,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375781974] [2020-09-25 11:03:52,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:03:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:52,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:52,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:55,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:55,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-25 11:03:55,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:03:55,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2447 [2020-09-25 11:03:55,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:55,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:55,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:03:55,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-25 11:03:55,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:03:55,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:55,418 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:03:55,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:03:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:55,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:55,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:55,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 11:03:55,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:55,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 11:03:55,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:55,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:55,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:55,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:55,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:55,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:55,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 11:03:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:55,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:55,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:55,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:03:55,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:55,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:55,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:55,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:55,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:55,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:55,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:55,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 11:03:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:55,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:55,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:55,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:03:55,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:55,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:55,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:55,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:55,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:55,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:55,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:55,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:55,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 11:03:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:55,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:55,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:55,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:55,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:55,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:03:55,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:55,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:55,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:55,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 11:03:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:55,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:55,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:55,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:03:55,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:55,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:55,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:55,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:55,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:55,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 11:03:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:55,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:55,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:55,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:03:55,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:55,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:55,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:55,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:55,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:55,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:55,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:55,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:55,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 11:03:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:55,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:55,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:55,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:03:55,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:55,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:55,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:55,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:55,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:55,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:55,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:55,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:55,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:03:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:55,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:55,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:55,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:55,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:55,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:55,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:55,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:55,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:55,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 11:03:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:55,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:55,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:55,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 11:03:55,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:55,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 11:03:55,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:55,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:55,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:03:55,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 11:03:55,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:03:55,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:55,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:03:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:55,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:55,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:55,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 11:03:55,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:55,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 11:03:55,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:55,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:03:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 11:03:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:03:55,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:55,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:03:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:55,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:55,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:55,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:03:55,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:55,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 11:03:55,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:55,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:03:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:55,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 11:03:55,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:55,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:03:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:55,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:56,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:56,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:03:56,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:56,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:03:56,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:56,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:56,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:56,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:56,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:56,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:56,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:03:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:56,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:56,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:56,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 11:03:56,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:56,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:03:56,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:56,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:56,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:56,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 11:03:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:56,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:56,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:03:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:56,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:56,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:56,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:03:56,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:56,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:56,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:56,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:56,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:56,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:56,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:03:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:56,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:56,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:56,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:56,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:56,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:56,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:56,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:56,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:56,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:56,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:56,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:56,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 11:03:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:56,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:56,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:56,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:03:56,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:56,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:56,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:56,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:56,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:56,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:03:56,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:56,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:56,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-25 11:03:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:56,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:56,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:56,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:56,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:56,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:56,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:56,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:56,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:03:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:56,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:56,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-09-25 11:03:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:03:56,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:03:56,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:03:56,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:03:56,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:03:56,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:03:56,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:03:56,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:03:56,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:03:56,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:03:56,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:03:56,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:03:56,118 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 11:03:56,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375781974] [2020-09-25 11:03:56,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:03:56,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 11:03:56,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085244074] [2020-09-25 11:03:56,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:03:56,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:03:56,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:03:56,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:03:56,123 INFO L87 Difference]: Start difference. First operand 391 states and 436 transitions. Second operand 10 states. [2020-09-25 11:03:57,727 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:03:58,013 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 11:03:58,338 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 11:03:58,691 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:03:59,016 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 11:03:59,307 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:04:00,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:04:00,399 INFO L93 Difference]: Finished difference Result 759 states and 919 transitions. [2020-09-25 11:04:00,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 11:04:00,400 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 221 [2020-09-25 11:04:00,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:04:00,407 INFO L225 Difference]: With dead ends: 759 [2020-09-25 11:04:00,407 INFO L226 Difference]: Without dead ends: 483 [2020-09-25 11:04:00,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 11:04:00,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-09-25 11:04:00,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 405. [2020-09-25 11:04:00,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-09-25 11:04:00,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 456 transitions. [2020-09-25 11:04:00,499 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 456 transitions. Word has length 221 [2020-09-25 11:04:00,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:04:00,500 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 456 transitions. [2020-09-25 11:04:00,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:04:00,501 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 456 transitions. [2020-09-25 11:04:00,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 11:04:00,505 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:04:00,505 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:00,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:04:00,506 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:04:00,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:04:00,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1151484107, now seen corresponding path program 1 times [2020-09-25 11:04:00,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:04:00,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101642953] [2020-09-25 11:04:00,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:04:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:00,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:00,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:00,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:01,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:05,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:05,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:05,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-09-25 11:04:05,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:04:05,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 11:04:05,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:05,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 11:04:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:04:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 11:04:05,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:05,909 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:04:05,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:04:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:05,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 11:04:06,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 11:04:06,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 11:04:06,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:06,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 11:04:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:04:06,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:06,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:06,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:04:06,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:06,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 11:04:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:04:06,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 11:04:06,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:06,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:04:06,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:06,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 11:04:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:06,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:04:06,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:06,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:04:06,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:06,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 11:04:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:04:06,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:06,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:06,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:04:06,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:06,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 11:04:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:04:06,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:04:06,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:06,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:04:06,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:06,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:04:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 11:04:06,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 11:04:06,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:04:06,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:04:06,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 11:04:06,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:06,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:04:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:04:06,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:04:06,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:04:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 11:04:06,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:06,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:04:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:06,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 11:04:06,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:06,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:06,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:06,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:04:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:04:06,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:04:06,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:04:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 11:04:06,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:06,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:04:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:06,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:04:06,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:04:06,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:04:06,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:06,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 11:04:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:04:06,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:04:06,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 11:04:06,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:06,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:06,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:04:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:06,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:06,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:06,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:06,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 11:04:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 11:04:06,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:04:06,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 11:04:06,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:04:06,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 11:04:06,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:04:06,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:04:06,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:04:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 11:04:06,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 11:04:06,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:04:06,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 11:04:06,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:04:06,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:06,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:04:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:04:06,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 11:04:06,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:04:06,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 11:04:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 11:04:06,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:06,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:04:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 11:04:06,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:04:06,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:04:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:04:06,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:06,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 11:04:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 11:04:06,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:04:06,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:06,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 11:04:06,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:06,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:06,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:04:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 11:04:06,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:04:06,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:06,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:06,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:06,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:04:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:06,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:06,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:06,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:06,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:04:06,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 11:04:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:04:06,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:04:06,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:06,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:04:06,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:06,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:06,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-25 11:04:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:06,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:06,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:06,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:04:06,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:06,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:06,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-09-25 11:04:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:06,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:06,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:04:06,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:04:06,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:04:06,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:04:06,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:04:06,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:04:06,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:04:06,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:04:06,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:04:06,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:04:07,097 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 11:04:07,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101642953] [2020-09-25 11:04:07,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:04:07,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 11:04:07,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729448440] [2020-09-25 11:04:07,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 11:04:07,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:04:07,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 11:04:07,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2020-09-25 11:04:07,102 INFO L87 Difference]: Start difference. First operand 405 states and 456 transitions. Second operand 19 states. [2020-09-25 11:04:07,728 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:04:09,273 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:04:09,637 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:04:10,014 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:04:10,353 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:04:10,703 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:04:11,034 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:04:11,360 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:04:11,703 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:04:12,075 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 11:04:12,378 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:04:12,682 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:04:13,000 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:04:13,344 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:04:13,677 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:04:13,988 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:04:14,337 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 11:04:14,934 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 11:04:15,249 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:04:16,108 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 11:04:17,956 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 11:04:18,581 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 11:04:19,237 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 11:04:19,880 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 11:04:23,198 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 11:04:23,547 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 11:04:23,938 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 11:04:24,261 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 11:04:26,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:04:26,690 INFO L93 Difference]: Finished difference Result 1629 states and 2266 transitions. [2020-09-25 11:04:26,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-09-25 11:04:26,690 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 257 [2020-09-25 11:04:26,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:04:26,702 INFO L225 Difference]: With dead ends: 1629 [2020-09-25 11:04:26,703 INFO L226 Difference]: Without dead ends: 1296 [2020-09-25 11:04:26,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1319 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=844, Invalid=3848, Unknown=0, NotChecked=0, Total=4692 [2020-09-25 11:04:26,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2020-09-25 11:04:26,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1045. [2020-09-25 11:04:26,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2020-09-25 11:04:26,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1227 transitions. [2020-09-25 11:04:26,847 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1227 transitions. Word has length 257 [2020-09-25 11:04:26,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:04:26,848 INFO L479 AbstractCegarLoop]: Abstraction has 1045 states and 1227 transitions. [2020-09-25 11:04:26,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 11:04:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1227 transitions. [2020-09-25 11:04:26,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 11:04:26,853 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:04:26,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:26,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:04:26,854 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:04:26,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:04:26,854 INFO L82 PathProgramCache]: Analyzing trace with hash 851733322, now seen corresponding path program 1 times [2020-09-25 11:04:26,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:04:26,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486718713] [2020-09-25 11:04:26,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:04:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:04:27,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:04:27,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking...