/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_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:53:12,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:53:12,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:53:12,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:53:12,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:53:12,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:53:12,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:53:12,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:53:12,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:53:12,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:53:12,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:53:12,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:53:12,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:53:12,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:53:12,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:53:12,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:53:12,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:53:12,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:53:12,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:53:12,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:53:12,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:53:12,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:53:12,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:53:12,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:53:12,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:53:12,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:53:12,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:53:12,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:53:12,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:53:12,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:53:12,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:53:12,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:53:12,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:53:12,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:53:12,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:53:12,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:53:12,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:53:12,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:53:12,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:53:12,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:53:12,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:53:12,697 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 02:53:12,723 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:53:12,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:53:12,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:53:12,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:53:12,727 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:53:12,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:53:12,727 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:53:12,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:53:12,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:53:12,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:53:12,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:53:12,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:53:12,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:53:12,730 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:53:12,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:53:12,730 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:53:12,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:53:12,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:53:12,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:53:12,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:53:12,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:53:12,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:53:12,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:53:12,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:53:12,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:53:12,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:53:12,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:53:12,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:53:12,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:53:12,734 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 02:53:13,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:53:13,207 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:53:13,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:53:13,213 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:53:13,215 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:53:13,216 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-09-25 02:53:13,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad1c6f351/f1cfcb57f98844e68beb05ce75572842/FLAG533f79031 [2020-09-25 02:53:13,934 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:53:13,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-09-25 02:53:13,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad1c6f351/f1cfcb57f98844e68beb05ce75572842/FLAG533f79031 [2020-09-25 02:53:14,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad1c6f351/f1cfcb57f98844e68beb05ce75572842 [2020-09-25 02:53:14,223 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:53:14,231 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:53:14,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:53:14,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:53:14,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:53:14,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:14,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217e3fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14, skipping insertion in model container [2020-09-25 02:53:14,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:14,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:53:14,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:53:14,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:53:14,784 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:53:14,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:53:14,952 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:53:14,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14 WrapperNode [2020-09-25 02:53:14,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:53:14,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:53:14,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:53:14,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:53:14,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:14,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:14,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:14,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:15,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:15,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:15,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (1/1) ... [2020-09-25 02:53:15,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:53:15,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:53:15,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:53:15,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:53:15,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (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 02:53:15,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:53:15,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:53:15,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:53:15,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:53:15,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:53:15,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:53:15,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:53:15,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:53:15,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:53:15,154 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:53:15,154 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:53:15,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:53:15,154 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:53:15,155 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:53:15,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:53:15,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:53:15,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:53:15,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:53:15,156 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:53:15,156 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:53:15,156 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:53:15,156 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:53:15,157 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:53:15,157 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:53:15,157 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:53:15,157 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:53:15,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:53:15,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:53:15,158 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:53:15,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:53:15,158 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:53:15,158 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:53:15,158 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:53:15,158 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:53:15,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:53:15,159 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:53:15,159 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:53:15,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:53:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:53:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:53:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:53:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:53:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:53:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:53:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:53:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:53:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:53:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:53:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:53:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:53:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:53:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:53:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:53:15,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:53:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:53:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:53:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:53:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:53:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:53:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:53:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:53:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:53:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:53:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:53:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:53:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:53:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:53:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:53:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:53:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:53:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:53:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:53:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:53:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:53:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:53:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:53:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:53:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:53:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:53:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:53:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:53:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:53:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:53:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:53:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:53:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:53:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:53:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:53:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:53:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:53:16,376 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:53:16,377 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:53:16,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:53:16 BoogieIcfgContainer [2020-09-25 02:53:16,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:53:16,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:53:16,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:53:16,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:53:16,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:53:14" (1/3) ... [2020-09-25 02:53:16,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed4133e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:53:16, skipping insertion in model container [2020-09-25 02:53:16,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:14" (2/3) ... [2020-09-25 02:53:16,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed4133e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:53:16, skipping insertion in model container [2020-09-25 02:53:16,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:53:16" (3/3) ... [2020-09-25 02:53:16,393 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-09-25 02:53:16,404 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:53:16,415 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:53:16,435 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:53:16,467 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:53:16,468 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:53:16,468 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:53:16,468 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:53:16,468 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:53:16,468 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:53:16,468 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:53:16,468 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:53:16,493 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states. [2020-09-25 02:53:16,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 02:53:16,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:16,513 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 02:53:16,513 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:16,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:16,520 INFO L82 PathProgramCache]: Analyzing trace with hash -382472662, now seen corresponding path program 1 times [2020-09-25 02:53:16,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:16,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1790222858] [2020-09-25 02:53:16,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:17,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:17,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:17,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:18,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:18,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:21,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:21,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 02:53:21,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:53:21,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 02:53:21,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:53:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 02:53:21,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 02:53:21,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:53:22,376 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:22,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:22,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:22,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:22,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:22,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:22,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-25 02:53:22,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:22,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:22,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:22,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 02:53:22,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:22,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:22,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:22,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:22,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:22,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:22,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:53:22,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:22,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:22,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:22,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:22,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:22,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:22,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:22,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:22,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:22,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:22,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:22,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:22,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:22,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:22,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:22,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:22,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:22,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:22,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:53:22,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:22,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:22,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:22,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:22,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:22,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:22,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:22,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:22,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:22,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:22,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:22,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:22,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:22,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:22,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:22,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:22,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:53:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:22,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:22,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:22,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:22,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:22,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:22,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:22,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:22,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:22,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:22,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:22,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 02:53:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:22,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:22,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:22,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:22,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:22,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:53:22,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:22,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:22,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:22,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:22,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:23,049 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 02:53:23,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1790222858] [2020-09-25 02:53:23,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:53:23,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:53:23,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420654926] [2020-09-25 02:53:23,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:53:23,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:23,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:53:23,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:53:23,090 INFO L87 Difference]: Start difference. First operand 301 states. Second operand 8 states. [2020-09-25 02:53:23,665 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:24,743 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:25,044 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:25,375 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:25,716 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:26,008 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:26,729 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:27,017 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:27,371 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:28,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:53:28,568 INFO L93 Difference]: Finished difference Result 578 states and 724 transitions. [2020-09-25 02:53:28,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 02:53:28,571 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 02:53:28,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:53:28,605 INFO L225 Difference]: With dead ends: 578 [2020-09-25 02:53:28,606 INFO L226 Difference]: Without dead ends: 388 [2020-09-25 02:53:28,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:53:28,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-09-25 02:53:28,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 346. [2020-09-25 02:53:28,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-09-25 02:53:28,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 398 transitions. [2020-09-25 02:53:28,740 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 398 transitions. Word has length 142 [2020-09-25 02:53:28,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:53:28,741 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 398 transitions. [2020-09-25 02:53:28,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:53:28,742 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 398 transitions. [2020-09-25 02:53:28,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 02:53:28,747 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:28,748 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] [2020-09-25 02:53:28,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:53:28,748 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:28,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:28,749 INFO L82 PathProgramCache]: Analyzing trace with hash 81638099, now seen corresponding path program 1 times [2020-09-25 02:53:28,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:28,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156729952] [2020-09-25 02:53:28,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:28,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:29,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:33,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:33,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 02:53:33,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:53:33,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4939 [2020-09-25 02:53:33,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:33,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:53:33,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 02:53:33,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-25 02:53:33,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,102 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:34,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:34,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-25 02:53:34,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:34,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:53:34,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:34,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:34,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:34,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:34,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:34,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:34,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:34,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:34,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:34,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:34,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:53:34,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:34,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:34,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:34,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:34,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:34,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:34,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 02:53:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:53:34,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:53:34,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 02:53:34,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:34,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 02:53:34,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:53:34,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:53:34,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 02:53:34,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:34,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 02:53:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:53:34,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:34,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:53:34,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 02:53:34,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:34,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:53:34,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:53:34,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:53:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:53:34,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:53:34,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:53:34,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:34,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:53:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:53:34,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:34,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:34,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:53:34,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:34,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:34,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 02:53:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:34,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:53:34,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:34,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 02:53:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:34,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:34,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:34,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:34,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:34,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:34,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:34,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:34,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:34,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:34,908 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 02:53:34,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156729952] [2020-09-25 02:53:34,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:53:34,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 02:53:34,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072764069] [2020-09-25 02:53:34,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 02:53:34,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:34,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 02:53:34,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-09-25 02:53:34,913 INFO L87 Difference]: Start difference. First operand 346 states and 398 transitions. Second operand 13 states. [2020-09-25 02:53:35,390 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:36,399 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:36,732 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:37,082 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:37,454 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:37,773 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:38,106 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:38,468 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:38,842 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:39,200 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:53:39,505 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:39,813 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:40,129 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:40,632 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:40,918 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:41,245 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:53:41,618 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:41,989 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:42,320 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:44,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:53:44,118 INFO L93 Difference]: Finished difference Result 949 states and 1281 transitions. [2020-09-25 02:53:44,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 02:53:44,119 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 190 [2020-09-25 02:53:44,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:53:44,130 INFO L225 Difference]: With dead ends: 949 [2020-09-25 02:53:44,130 INFO L226 Difference]: Without dead ends: 667 [2020-09-25 02:53:44,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=184, Invalid=872, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 02:53:44,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2020-09-25 02:53:44,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 547. [2020-09-25 02:53:44,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2020-09-25 02:53:44,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 635 transitions. [2020-09-25 02:53:44,235 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 635 transitions. Word has length 190 [2020-09-25 02:53:44,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:53:44,236 INFO L479 AbstractCegarLoop]: Abstraction has 547 states and 635 transitions. [2020-09-25 02:53:44,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 02:53:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 635 transitions. [2020-09-25 02:53:44,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 02:53:44,240 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:44,241 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] [2020-09-25 02:53:44,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:53:44,241 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:44,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:44,242 INFO L82 PathProgramCache]: Analyzing trace with hash 532479923, now seen corresponding path program 1 times [2020-09-25 02:53:44,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:44,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958576956] [2020-09-25 02:53:44,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:44,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 02:53:45,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 799 [2020-09-25 02:53:45,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:53:45,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-09-25 02:53:45,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:53:45,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,475 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:45,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:45,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 02:53:45,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:45,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:45,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:45,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:45,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:45,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:45,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:45,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:45,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:45,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:45,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:45,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:45,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:53:45,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:45,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:45,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:45,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:45,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:45,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:45,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:45,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:45,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:53:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:53:45,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:45,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:45,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:45,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:45,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:45,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 02:53:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:53:45,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 02:53:45,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:53:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 02:53:45,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:53:45,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:45,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:45,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:45,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:53:45,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:45,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 02:53:45,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:45,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:53:45,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:53:45,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:53:45,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:45,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:45,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:46,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:46,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:53:46,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:46,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 02:53:46,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:46,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:46,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:53:46,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:46,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:53:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:46,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:46,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:46,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:53:46,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:46,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:46,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:46,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:46,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:46,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:46,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:46,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:53:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:46,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:46,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:46,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:53:46,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:46,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:46,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:53:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:46,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:46,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 02:53:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:46,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:46,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:46,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:46,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:46,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:46,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:46,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:46,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:46,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:46,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:46,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 02:53:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:46,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:46,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:46,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:46,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:46,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:46,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:46,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:46,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:46,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:46,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:46,134 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 02:53:46,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958576956] [2020-09-25 02:53:46,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:53:46,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 02:53:46,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735492884] [2020-09-25 02:53:46,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 02:53:46,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:46,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 02:53:46,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:53:46,137 INFO L87 Difference]: Start difference. First operand 547 states and 635 transitions. Second operand 10 states. [2020-09-25 02:53:47,557 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:47,873 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:48,224 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:53:48,544 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:48,897 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:53:49,201 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:50,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:53:50,317 INFO L93 Difference]: Finished difference Result 1171 states and 1461 transitions. [2020-09-25 02:53:50,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 02:53:50,318 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-09-25 02:53:50,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:53:50,328 INFO L225 Difference]: With dead ends: 1171 [2020-09-25 02:53:50,328 INFO L226 Difference]: Without dead ends: 734 [2020-09-25 02:53:50,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:53:50,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2020-09-25 02:53:50,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 563. [2020-09-25 02:53:50,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-09-25 02:53:50,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 651 transitions. [2020-09-25 02:53:50,407 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 651 transitions. Word has length 195 [2020-09-25 02:53:50,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:53:50,408 INFO L479 AbstractCegarLoop]: Abstraction has 563 states and 651 transitions. [2020-09-25 02:53:50,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 02:53:50,408 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 651 transitions. [2020-09-25 02:53:50,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-25 02:53:50,412 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:50,412 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] [2020-09-25 02:53:50,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:53:50,413 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:50,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:50,413 INFO L82 PathProgramCache]: Analyzing trace with hash 945411648, now seen corresponding path program 1 times [2020-09-25 02:53:50,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:50,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401542631] [2020-09-25 02:53:50,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:50,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:50,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:50,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:50,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:51,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:55,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:55,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-09-25 02:53:55,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:53:55,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 02:53:55,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 02:53:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:53:55,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 02:53:55,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:55,853 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:55,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:55,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:56,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-25 02:53:56,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:56,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:56,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:53:56,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:56,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:56,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:56,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:56,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:56,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:56,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:56,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:56,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:56,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:53:56,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:56,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:56,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:56,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:56,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:56,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:56,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:56,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:56,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:53:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:53:56,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:53:56,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:56,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:56,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:53:56,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:53:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:53:56,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 02:53:56,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:53:56,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:53:56,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 02:53:56,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:53:56,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:53:56,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:56,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:56,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 02:53:56,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:56,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:53:56,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:56,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:56,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:56,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 02:53:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:53:56,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 02:53:56,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:56,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 02:53:56,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 02:53:56,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:53:56,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 02:53:56,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:56,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:56,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:53:56,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:53:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:53:56,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 02:53:56,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:56,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:53:56,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:53:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:53:56,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:56,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:56,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:56,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 02:53:56,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:53:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:53:56,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:56,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:56,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:56,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:53:56,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:56,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-25 02:53:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:56,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:56,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:56,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:56,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:56,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-09-25 02:53:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:56,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:56,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:56,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:56,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:56,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:56,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:56,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:56,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:56,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:56,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:56,713 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 02:53:56,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401542631] [2020-09-25 02:53:56,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:53:56,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 02:53:56,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542413016] [2020-09-25 02:53:56,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:53:56,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:56,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:53:56,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:53:56,719 INFO L87 Difference]: Start difference. First operand 563 states and 651 transitions. Second operand 9 states. [2020-09-25 02:53:57,350 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:58,338 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:02,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:54:02,431 INFO L93 Difference]: Finished difference Result 2111 states and 2877 transitions. [2020-09-25 02:54:02,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 02:54:02,432 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 220 [2020-09-25 02:54:02,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:54:02,442 INFO L225 Difference]: With dead ends: 2111 [2020-09-25 02:54:02,443 INFO L226 Difference]: Without dead ends: 1628 [2020-09-25 02:54:02,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2020-09-25 02:54:02,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2020-09-25 02:54:02,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1191. [2020-09-25 02:54:02,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1191 states. [2020-09-25 02:54:02,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1460 transitions. [2020-09-25 02:54:02,596 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1460 transitions. Word has length 220 [2020-09-25 02:54:02,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:54:02,597 INFO L479 AbstractCegarLoop]: Abstraction has 1191 states and 1460 transitions. [2020-09-25 02:54:02,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:54:02,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1460 transitions. [2020-09-25 02:54:02,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-25 02:54:02,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:02,603 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:54:02,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:54:02,604 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:02,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:02,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1705694796, now seen corresponding path program 1 times [2020-09-25 02:54:02,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:02,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254340665] [2020-09-25 02:54:02,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:02,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:02,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:02,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:02,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:03,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:03,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking...