/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=WIDEST --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_spec1_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:54:12,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:54:12,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:54:12,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:54:12,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:54:12,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:54:12,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:54:12,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:54:12,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:54:12,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:54:12,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:54:12,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:54:12,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:54:12,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:54:12,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:54:12,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:54:12,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:54:12,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:54:12,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:54:12,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:54:12,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:54:12,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:54:12,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:54:12,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:54:12,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:54:12,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:54:12,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:54:12,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:54:12,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:54:12,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:54:12,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:54:12,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:54:12,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:54:12,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:54:12,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:54:12,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:54:12,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:54:12,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:54:12,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:54:12,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:54:12,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:54:12,143 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 02:54:12,198 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:54:12,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:54:12,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:54:12,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:54:12,201 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:54:12,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:54:12,202 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:54:12,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:54:12,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:54:12,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:54:12,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:54:12,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:54:12,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:54:12,205 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:54:12,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:54:12,205 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:54:12,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:54:12,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:54:12,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:54:12,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:54:12,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:54:12,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:54:12,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:54:12,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:54:12,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:54:12,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:54:12,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:54:12,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:54:12,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:54:12,208 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 02:54:12,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:54:12,704 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:54:12,711 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:54:12,713 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:54:12,715 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:54:12,716 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-09-25 02:54:12,794 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a88f2a34/80be8e34503b494aac9cfce8e416a60a/FLAG3c9508f4b [2020-09-25 02:54:13,433 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:54:13,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-09-25 02:54:13,450 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a88f2a34/80be8e34503b494aac9cfce8e416a60a/FLAG3c9508f4b [2020-09-25 02:54:13,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4a88f2a34/80be8e34503b494aac9cfce8e416a60a [2020-09-25 02:54:13,731 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:54:13,737 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:54:13,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:54:13,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:54:13,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:54:13,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:54:13" (1/1) ... [2020-09-25 02:54:13,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e33fb78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:13, skipping insertion in model container [2020-09-25 02:54:13,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:54:13" (1/1) ... [2020-09-25 02:54:13,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:54:13,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:54:14,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:54:14,189 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:54:14,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:54:14,481 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:54:14,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:14 WrapperNode [2020-09-25 02:54:14,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:54:14,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:54:14,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:54:14,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:54:14,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:14" (1/1) ... [2020-09-25 02:54:14,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:14" (1/1) ... [2020-09-25 02:54:14,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:14" (1/1) ... [2020-09-25 02:54:14,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:14" (1/1) ... [2020-09-25 02:54:14,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:14" (1/1) ... [2020-09-25 02:54:14,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:14" (1/1) ... [2020-09-25 02:54:14,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:14" (1/1) ... [2020-09-25 02:54:14,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:54:14,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:54:14,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:54:14,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:54:14,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:14" (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 02:54:14,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:54:14,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:54:14,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:54:14,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:54:14,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:54:14,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:54:14,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:54:14,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:54:14,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:54:14,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:54:14,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:54:14,698 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:54:14,698 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:54:14,698 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:54:14,698 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:54:14,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:54:14,699 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:54:14,700 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:54:14,700 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:54:14,700 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 02:54:14,701 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:54:14,701 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:54:14,701 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:54:14,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:54:14,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:54:14,703 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:54:14,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:54:14,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 02:54:14,703 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:54:14,703 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:54:14,704 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:54:14,704 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:54:14,704 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:54:14,704 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:54:14,704 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:54:14,704 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:54:14,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:54:14,705 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:54:14,705 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:54:14,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:54:14,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 02:54:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:54:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:54:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:54:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:54:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:54:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:54:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:54:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:54:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:54:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:54:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:54:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:54:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:54:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:54:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:54:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:54:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:54:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:54:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:54:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:54:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:54:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:54:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:54:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:54:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:54:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:54:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:54:14,712 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:54:14,712 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:54:14,712 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:54:14,713 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:54:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:54:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:54:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:54:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:54:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:54:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:54:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:54:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:54:14,716 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:54:14,716 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 02:54:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:54:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:54:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:54:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:54:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:54:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:54:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 02:54:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 02:54:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:54:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:54:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:54:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:54:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:54:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:54:15,966 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:54:15,966 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:54:15,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:54:15 BoogieIcfgContainer [2020-09-25 02:54:15,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:54:15,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:54:15,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:54:15,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:54:15,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:54:13" (1/3) ... [2020-09-25 02:54:15,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b1892a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:54:15, skipping insertion in model container [2020-09-25 02:54:15,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:14" (2/3) ... [2020-09-25 02:54:15,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b1892a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:54:15, skipping insertion in model container [2020-09-25 02:54:15,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:54:15" (3/3) ... [2020-09-25 02:54:15,993 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2020-09-25 02:54:16,005 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:54:16,020 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:54:16,044 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:54:16,089 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:54:16,089 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:54:16,089 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:54:16,089 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:54:16,090 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:54:16,090 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:54:16,091 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:54:16,091 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:54:16,130 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states. [2020-09-25 02:54:16,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 02:54:16,164 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:16,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:16,167 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:16,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:16,176 INFO L82 PathProgramCache]: Analyzing trace with hash 317689357, now seen corresponding path program 1 times [2020-09-25 02:54:16,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:16,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036243629] [2020-09-25 02:54:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:16,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:16,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:17,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:18,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:18,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:21,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:21,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 02:54:21,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:54:21,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 02:54:21,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:21,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:54:21,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 02:54:21,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 02:54:21,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 02:54:22,071 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:22,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:22,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:22,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-09-25 02:54:22,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:22,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:22,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 02:54:22,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:22,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:22,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:22,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:22,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:22,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:22,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:22,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:22,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:54:22,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:22,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:22,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:22,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:22,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:22,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:22,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:54:22,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:22,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:22,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:22,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:22,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:22,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:22,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:22,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:22,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:22,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:22,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:22,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:22,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:22,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:54:22,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:22,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:22,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:22,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:22,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 02:54:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:22,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:22,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 02:54:22,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:22,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:22,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:22,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:22,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:54:22,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036243629] [2020-09-25 02:54:22,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:54:22,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:54:22,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928857286] [2020-09-25 02:54:22,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:54:22,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:22,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:54:22,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:54:22,801 INFO L87 Difference]: Start difference. First operand 332 states. Second operand 8 states. [2020-09-25 02:54:23,432 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:24,798 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 02:54:25,408 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 02:54:25,776 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:26,180 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:26,454 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:27,300 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:27,641 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:54:28,004 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:29,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:54:29,848 INFO L93 Difference]: Finished difference Result 661 states and 840 transitions. [2020-09-25 02:54:29,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 02:54:29,850 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 02:54:29,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:54:29,873 INFO L225 Difference]: With dead ends: 661 [2020-09-25 02:54:29,873 INFO L226 Difference]: Without dead ends: 440 [2020-09-25 02:54:29,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-09-25 02:54:29,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-09-25 02:54:30,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 381. [2020-09-25 02:54:30,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-09-25 02:54:30,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 434 transitions. [2020-09-25 02:54:30,022 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 434 transitions. Word has length 142 [2020-09-25 02:54:30,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:54:30,023 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 434 transitions. [2020-09-25 02:54:30,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:54:30,023 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 434 transitions. [2020-09-25 02:54:30,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-25 02:54:30,027 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:30,027 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 02:54:30,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:54:30,028 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:30,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:30,029 INFO L82 PathProgramCache]: Analyzing trace with hash -2009669953, now seen corresponding path program 1 times [2020-09-25 02:54:30,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:30,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126845501] [2020-09-25 02:54:30,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:30,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:30,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:32,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:32,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:35,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-25 02:54:35,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:54:35,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 02:54:35,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:35,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:54:35,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 02:54:35,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-09-25 02:54:35,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:35,444 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:35,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:35,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:35,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:35,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:35,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 02:54:35,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:35,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:35,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:35,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:54:35,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:35,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:35,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:35,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:35,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:35,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:35,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:35,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:35,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:35,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:35,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:35,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:35,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:35,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:35,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:35,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:35,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:35,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:35,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:35,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:35,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:35,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:35,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:35,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:54:35,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:35,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:35,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:35,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:35,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:35,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:35,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:35,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:35,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:35,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:35,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:35,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:35,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:35,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:35,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:35,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 02:54:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:35,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:35,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:54:35,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:54:35,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 02:54:35,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:35,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:35,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:35,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 02:54:35,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:35,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:35,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:35,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:54:35,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:35,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:35,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:35,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:35,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:35,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:35,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:35,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:35,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:35,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:35,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:35,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:35,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:35,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:35,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:35,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:35,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:35,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 02:54:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:35,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:36,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:36,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 02:54:36,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:54:36,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 02:54:36,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:36,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:36,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:36,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 02:54:36,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:36,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:36,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:36,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:36,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:36,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:54:36,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:54:36,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 02:54:36,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:54:36,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 02:54:36,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:54:36,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:36,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:36,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:36,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:36,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:54:36,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:36,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 02:54:36,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:36,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:54:36,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:54:36,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:54:36,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:36,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:36,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:36,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:36,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:54:36,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:36,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 02:54:36,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:36,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:36,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:36,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:54:36,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:36,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:54:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:36,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:36,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:36,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:54:36,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:36,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:36,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:36,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:36,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:36,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:36,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:36,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:54:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:36,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:36,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:36,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:36,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:36,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:36,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:36,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:36,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:54:36,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:36,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:36,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 02:54:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:36,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:36,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:36,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:36,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:36,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:54:36,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:36,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:36,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:36,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:36,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:36,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-25 02:54:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:36,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:36,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:36,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:36,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:36,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:36,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:36,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:36,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:36,483 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 02:54:36,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126845501] [2020-09-25 02:54:36,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:54:36,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 02:54:36,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109819018] [2020-09-25 02:54:36,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 02:54:36,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:36,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 02:54:36,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-09-25 02:54:36,488 INFO L87 Difference]: Start difference. First operand 381 states and 434 transitions. Second operand 15 states. [2020-09-25 02:54:36,949 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:37,896 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:38,303 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:38,685 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:39,069 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:54:39,412 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:40,001 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:40,368 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:40,812 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:41,157 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:41,471 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:41,812 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:54:42,197 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:42,610 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:54:42,937 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:43,522 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:43,848 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:44,206 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:54:44,567 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:44,948 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:45,254 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:47,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:54:47,389 INFO L93 Difference]: Finished difference Result 1116 states and 1476 transitions. [2020-09-25 02:54:47,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-25 02:54:47,390 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 210 [2020-09-25 02:54:47,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:54:47,399 INFO L225 Difference]: With dead ends: 1116 [2020-09-25 02:54:47,400 INFO L226 Difference]: Without dead ends: 798 [2020-09-25 02:54:47,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=253, Invalid=1153, Unknown=0, NotChecked=0, Total=1406 [2020-09-25 02:54:47,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-09-25 02:54:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 621. [2020-09-25 02:54:47,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-09-25 02:54:47,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 711 transitions. [2020-09-25 02:54:47,505 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 711 transitions. Word has length 210 [2020-09-25 02:54:47,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:54:47,506 INFO L479 AbstractCegarLoop]: Abstraction has 621 states and 711 transitions. [2020-09-25 02:54:47,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 02:54:47,506 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 711 transitions. [2020-09-25 02:54:47,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 02:54:47,509 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:47,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:54:47,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:54:47,510 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:47,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:47,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1107528206, now seen corresponding path program 1 times [2020-09-25 02:54:47,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:47,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588445919] [2020-09-25 02:54:47,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:47,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:48,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:48,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-25 02:54:48,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:48,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 697 [2020-09-25 02:54:48,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:48,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-25 02:54:48,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:54:48,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:48,541 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:48,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:48,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:48,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:48,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:48,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:48,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 02:54:48,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:48,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:48,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:48,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:48,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:48,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:48,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:48,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:48,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:48,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:48,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:54:48,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:48,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:48,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:48,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:48,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:48,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:48,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:48,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:48,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:48,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:48,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:54:48,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:48,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:48,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:48,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:48,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:48,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:48,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:48,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:48,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:48,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:48,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:48,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:48,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:48,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:48,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:48,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:48,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:48,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:48,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:48,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:48,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:48,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:48,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:48,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:48,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:48,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:48,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:48,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:54:48,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:48,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:48,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:48,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:48,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:48,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:48,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:48,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 02:54:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:48,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:48,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:48,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 02:54:48,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:48,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 02:54:48,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:48,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:48,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 02:54:48,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:54:48,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:48,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:48,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:48,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:48,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:54:48,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:48,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 02:54:48,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 02:54:48,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:54:48,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:48,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:48,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:48,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:48,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:54:48,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:48,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 02:54:48,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:48,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:48,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 02:54:48,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:54:48,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:48,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:48,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:54:49,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 02:54:49,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:54:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:54:49,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:54:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:54:49,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:54:49,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:54:49,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:49,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:49,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:54:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:49,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:49,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:49,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:54:49,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:49,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 02:54:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:49,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:49,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:49,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:49,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 02:54:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:49,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:49,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:49,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:49,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:49,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:49,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:49,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:49,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:54:49,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [588445919] [2020-09-25 02:54:49,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:54:49,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 02:54:49,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839626458] [2020-09-25 02:54:49,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:54:49,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:49,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:54:49,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:54:49,174 INFO L87 Difference]: Start difference. First operand 621 states and 711 transitions. Second operand 9 states. [2020-09-25 02:54:50,654 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:51,000 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:51,296 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:51,566 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:51,882 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:53,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:54:53,465 INFO L93 Difference]: Finished difference Result 1347 states and 1711 transitions. [2020-09-25 02:54:53,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 02:54:53,471 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 200 [2020-09-25 02:54:53,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:54:53,478 INFO L225 Difference]: With dead ends: 1347 [2020-09-25 02:54:53,478 INFO L226 Difference]: Without dead ends: 836 [2020-09-25 02:54:53,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 02:54:53,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-09-25 02:54:53,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 633. [2020-09-25 02:54:53,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-09-25 02:54:53,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 723 transitions. [2020-09-25 02:54:53,607 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 723 transitions. Word has length 200 [2020-09-25 02:54:53,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:54:53,608 INFO L479 AbstractCegarLoop]: Abstraction has 633 states and 723 transitions. [2020-09-25 02:54:53,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:54:53,609 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 723 transitions. [2020-09-25 02:54:53,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 02:54:53,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:53,619 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 02:54:53,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:54:53,619 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:53,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:53,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1634982593, now seen corresponding path program 1 times [2020-09-25 02:54:53,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:53,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472640080] [2020-09-25 02:54:53,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:53,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:53,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:53,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:54,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:54,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:58,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:58,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-09-25 02:54:58,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:54:58,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 02:54:58,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:58,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 02:54:58,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:54:58,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-25 02:54:58,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,022 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:59,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:59,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 02:54:59,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:54:59,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:59,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:59,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:59,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:59,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:59,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:59,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:59,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:54:59,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:59,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:59,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:59,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:59,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:54:59,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:54:59,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:54:59,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:54:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:54:59,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 02:54:59,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:54:59,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:54:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 02:54:59,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:59,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:54:59,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:54:59,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 02:54:59,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:59,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:59,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:59,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:59,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:59,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 02:54:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 02:54:59,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 02:54:59,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 02:54:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 02:54:59,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:54:59,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 02:54:59,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 02:54:59,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:59,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:54:59,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 02:54:59,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:54:59,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:59,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:54:59,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:54:59,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:54:59,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:59,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:54:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:54:59,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:59,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 02:54:59,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:59,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:54:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:59,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:54:59,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:59,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:54:59,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:59,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-25 02:54:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:59,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:59,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:59,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:59,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:59,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:59,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-25 02:54:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:59,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:59,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:59,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:59,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:59,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:59,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:59,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:59,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:59,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:59,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:59,840 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 02:54:59,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472640080] [2020-09-25 02:54:59,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:54:59,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 02:54:59,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369032900] [2020-09-25 02:54:59,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:54:59,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:59,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:54:59,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:54:59,844 INFO L87 Difference]: Start difference. First operand 633 states and 723 transitions. Second operand 9 states. [2020-09-25 02:55:00,434 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:55:01,634 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 186