/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_spec5_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:04:37,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:04:37,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:04:37,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:04:37,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:04:37,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:04:37,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:04:37,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:04:37,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:04:37,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:04:37,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:04:37,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:04:37,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:04:37,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:04:37,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:04:37,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:04:37,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:04:37,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:04:37,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:04:37,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:04:37,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:04:37,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:04:37,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:04:37,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:04:37,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:04:37,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:04:37,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:04:37,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:04:37,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:04:37,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:04:37,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:04:37,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:04:37,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:04:37,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:04:37,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:04:37,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:04:37,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:04:37,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:04:37,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:04:37,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:04:37,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:04:37,708 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 03:04:37,762 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:04:37,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:04:37,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:04:37,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:04:37,766 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:04:37,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:04:37,766 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:04:37,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:04:37,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:04:37,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:04:37,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:04:37,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:04:37,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:04:37,768 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:04:37,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:04:37,768 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:04:37,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:04:37,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:04:37,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:04:37,771 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:04:37,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:04:37,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:04:37,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:04:37,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:04:37,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:04:37,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:04:37,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:04:37,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:04:37,773 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:04:37,774 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 03:04:38,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:04:38,242 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:04:38,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:04:38,249 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:04:38,249 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:04:38,250 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2020-09-25 03:04:38,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/053b8e355/20080c0774db47599553184057109a90/FLAG872c42350 [2020-09-25 03:04:39,004 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:04:39,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2020-09-25 03:04:39,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/053b8e355/20080c0774db47599553184057109a90/FLAG872c42350 [2020-09-25 03:04:39,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/053b8e355/20080c0774db47599553184057109a90 [2020-09-25 03:04:39,240 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:04:39,246 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:04:39,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:04:39,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:04:39,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:04:39,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:04:39" (1/1) ... [2020-09-25 03:04:39,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:39, skipping insertion in model container [2020-09-25 03:04:39,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:04:39" (1/1) ... [2020-09-25 03:04:39,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:04:39,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:04:39,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:04:39,738 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:04:39,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:04:39,953 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:04:39,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:39 WrapperNode [2020-09-25 03:04:39,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:04:39,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:04:39,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:04:39,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:04:39,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:39" (1/1) ... [2020-09-25 03:04:39,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:39" (1/1) ... [2020-09-25 03:04:39,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:39" (1/1) ... [2020-09-25 03:04:39,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:39" (1/1) ... [2020-09-25 03:04:40,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:39" (1/1) ... [2020-09-25 03:04:40,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:39" (1/1) ... [2020-09-25 03:04:40,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:39" (1/1) ... [2020-09-25 03:04:40,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:04:40,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:04:40,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:04:40,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:04:40,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:39" (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 03:04:40,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:04:40,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:04:40,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 03:04:40,164 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 03:04:40,164 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 03:04:40,164 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 03:04:40,164 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 03:04:40,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 03:04:40,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 03:04:40,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 03:04:40,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 03:04:40,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 03:04:40,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 03:04:40,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 03:04:40,166 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 03:04:40,166 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 03:04:40,166 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 03:04:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 03:04:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 03:04:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 03:04:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 03:04:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 03:04:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 03:04:40,168 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 03:04:40,168 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 03:04:40,168 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 03:04:40,168 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 03:04:40,168 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 03:04:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 03:04:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 03:04:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 03:04:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 03:04:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 03:04:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 03:04:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 03:04:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 03:04:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 03:04:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 03:04:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 03:04:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:04:40,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:04:40,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:04:40,171 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 03:04:40,171 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 03:04:40,171 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 03:04:40,171 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 03:04:40,171 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 03:04:40,171 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 03:04:40,171 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 03:04:40,171 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:04:40,172 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:04:40,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 03:04:40,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:04:40,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 03:04:40,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:04:40,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 03:04:40,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 03:04:40,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:04:40,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 03:04:40,173 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 03:04:40,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:04:40,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 03:04:40,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 03:04:40,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:04:40,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 03:04:40,173 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 03:04:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 03:04:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 03:04:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 03:04:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 03:04:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 03:04:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 03:04:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 03:04:40,174 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 03:04:40,175 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 03:04:40,175 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 03:04:40,175 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 03:04:40,175 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 03:04:40,175 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 03:04:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 03:04:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 03:04:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 03:04:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 03:04:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 03:04:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 03:04:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 03:04:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 03:04:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 03:04:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 03:04:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 03:04:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:04:40,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:04:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 03:04:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:04:41,411 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:04:41,411 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 03:04:41,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:04:41 BoogieIcfgContainer [2020-09-25 03:04:41,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:04:41,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:04:41,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:04:41,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:04:41,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:04:39" (1/3) ... [2020-09-25 03:04:41,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b322aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:04:41, skipping insertion in model container [2020-09-25 03:04:41,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:39" (2/3) ... [2020-09-25 03:04:41,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b322aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:04:41, skipping insertion in model container [2020-09-25 03:04:41,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:04:41" (3/3) ... [2020-09-25 03:04:41,428 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2020-09-25 03:04:41,440 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:04:41,452 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:04:41,475 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:04:41,511 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:04:41,512 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:04:41,512 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:04:41,512 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:04:41,512 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:04:41,512 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:04:41,512 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:04:41,513 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:04:41,545 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-25 03:04:41,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 03:04:41,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:04:41,568 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:04:41,568 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:04:41,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:04:41,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1009197842, now seen corresponding path program 1 times [2020-09-25 03:04:41,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:04:41,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737042769] [2020-09-25 03:04:41,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:04:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:42,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:42,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:43,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:43,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:46,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 03:04:47,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:04:47,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 03:04:47,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:04:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 03:04:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 03:04:47,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:04:47,482 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:04:47,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:04:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:04:47,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:47,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-25 03:04:47,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:47,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:47,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:04:47,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:47,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:04:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:47,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:47,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:04:47,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:47,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:47,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:04:47,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:47,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:04:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:47,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:47,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:04:47,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:04:47,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:47,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:04:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:47,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:47,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:04:47,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:47,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:47,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:04:47,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:47,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:04:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:47,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:04:47,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:47,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:47,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:04:47,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:47,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:04:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:04:48,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:48,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:04:48,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:48,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:48,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:48,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:04:48,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:48,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 03:04:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:48,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:48,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:48,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:04:48,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:48,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:04:48,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:48,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:48,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:48,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:04:48,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:48,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:04:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:48,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:48,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:48,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:48,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:48,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:04:48,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:48,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:48,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:48,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:48,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:48,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 03:04:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:48,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:48,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:48,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:48,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:48,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:04:48,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:48,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:48,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:48,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:04:48,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:48,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 03:04:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:48,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:48,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:48,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:48,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:48,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 03:04:48,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:48,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:04:48,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:48,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:04:48,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 03:04:48,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737042769] [2020-09-25 03:04:48,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:04:48,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 03:04:48,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917747075] [2020-09-25 03:04:48,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:04:48,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:04:48,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:04:48,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:04:48,302 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 9 states. [2020-09-25 03:04:49,149 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:04:49,968 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:04:50,291 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 03:04:51,604 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:04:51,910 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:04:52,248 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:04:52,685 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:04:53,032 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:04:53,368 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:04:53,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:04:53,916 INFO L93 Difference]: Finished difference Result 552 states and 668 transitions. [2020-09-25 03:04:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:04:53,917 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-25 03:04:53,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:04:53,938 INFO L225 Difference]: With dead ends: 552 [2020-09-25 03:04:53,938 INFO L226 Difference]: Without dead ends: 381 [2020-09-25 03:04:53,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 21 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:04:53,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-09-25 03:04:54,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 333. [2020-09-25 03:04:54,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-09-25 03:04:54,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 372 transitions. [2020-09-25 03:04:54,064 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 372 transitions. Word has length 160 [2020-09-25 03:04:54,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:04:54,065 INFO L479 AbstractCegarLoop]: Abstraction has 333 states and 372 transitions. [2020-09-25 03:04:54,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:04:54,065 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 372 transitions. [2020-09-25 03:04:54,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 03:04:54,071 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:04:54,071 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:04:54,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:04:54,072 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:04:54,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:04:54,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1749038949, now seen corresponding path program 1 times [2020-09-25 03:04:54,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:04:54,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988273041] [2020-09-25 03:04:54,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:04:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:54,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:54,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:56,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:56,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 03:04:56,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:04:56,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2202 [2020-09-25 03:04:56,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:04:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-09-25 03:04:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:04:56,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:56,642 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:04:56,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:04:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:56,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:56,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:56,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:04:56,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:56,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 03:04:56,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:56,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:56,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:56,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:56,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:56,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:04:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:56,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:56,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:56,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:56,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:56,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:04:56,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:56,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:56,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:56,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:04:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:56,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:56,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:56,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:56,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:56,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:04:56,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:56,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:56,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:56,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:56,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:56,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:04:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:56,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:56,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:56,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:56,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:56,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:04:56,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:56,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:56,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:56,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:56,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:56,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:04:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:56,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:56,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:56,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:56,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:56,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:04:56,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:56,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:56,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:56,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:04:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:56,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:56,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:56,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:04:56,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:56,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:04:56,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:56,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:56,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:56,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 03:04:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:56,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:56,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:56,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:04:56,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:56,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:04:56,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:56,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:56,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:56,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:56,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:56,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:04:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:56,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:56,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:56,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:56,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:56,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:04:56,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:56,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:56,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:56,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:56,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:56,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 03:04:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:56,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:56,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:56,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:04:56,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:56,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 03:04:56,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:56,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:04:56,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 03:04:56,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:04:56,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:56,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:04:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:56,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:57,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:57,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:04:57,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:57,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 03:04:57,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:57,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:04:57,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:57,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 03:04:57,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:57,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:04:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:57,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:57,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:57,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:04:57,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:57,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:04:57,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:57,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:57,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:57,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:57,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:57,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:04:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:57,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:57,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:57,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:04:57,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:57,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:04:57,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:04:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:57,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:57,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 03:04:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:57,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:57,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:57,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:57,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:57,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:04:57,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:57,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:57,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:04:57,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:57,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:57,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 03:04:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:57,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:57,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:57,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:57,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:57,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:04:57,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:04:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:57,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:57,116 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 03:04:57,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988273041] [2020-09-25 03:04:57,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:04:57,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 03:04:57,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377748533] [2020-09-25 03:04:57,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:04:57,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:04:57,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:04:57,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:04:57,121 INFO L87 Difference]: Start difference. First operand 333 states and 372 transitions. Second operand 10 states. [2020-09-25 03:04:58,787 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:04:59,108 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:04:59,396 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:04:59,752 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:00,128 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 03:05:00,451 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:01,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:05:01,144 INFO L93 Difference]: Finished difference Result 640 states and 769 transitions. [2020-09-25 03:05:01,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:05:01,145 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-25 03:05:01,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:05:01,151 INFO L225 Difference]: With dead ends: 640 [2020-09-25 03:05:01,151 INFO L226 Difference]: Without dead ends: 422 [2020-09-25 03:05:01,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 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 03:05:01,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-09-25 03:05:01,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 344. [2020-09-25 03:05:01,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-09-25 03:05:01,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 386 transitions. [2020-09-25 03:05:01,216 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 386 transitions. Word has length 194 [2020-09-25 03:05:01,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:05:01,217 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 386 transitions. [2020-09-25 03:05:01,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:05:01,217 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 386 transitions. [2020-09-25 03:05:01,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 03:05:01,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:05:01,222 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:05:01,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:05:01,222 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:05:01,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:05:01,222 INFO L82 PathProgramCache]: Analyzing trace with hash -981229065, now seen corresponding path program 1 times [2020-09-25 03:05:01,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:05:01,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133415074] [2020-09-25 03:05:01,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:05:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:01,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:01,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:01,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:01,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:03,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:06,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:06,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-09-25 03:05:06,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:05:06,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 03:05:06,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:06,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:05:06,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 03:05:06,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 03:05:06,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:06,577 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:05:06,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:06,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:06,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:06,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:05:06,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:06,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-25 03:05:06,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:06,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:06,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 03:05:06,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:06,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:05:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:06,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:06,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:06,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:06,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:06,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:06,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:06,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:05:06,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:06,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:05:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:06,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:06,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:06,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:06,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:06,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:06,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:06,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:06,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:06,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:05:06,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:06,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:05:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:06,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:06,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:06,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:06,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:06,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:05:06,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:06,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:06,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:06,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:05:06,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:06,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:05:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:06,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:06,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:06,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:06,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:06,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:06,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:06,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:06,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:06,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:05:06,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:06,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:05:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:06,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:06,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:06,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:05:06,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:06,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:06,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:06,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:06,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:06,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:05:06,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:06,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 03:05:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:07,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:07,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:07,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 03:05:07,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:07,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 03:05:07,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:07,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:05:07,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:05:07,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 03:05:07,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:07,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:07,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:07,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:07,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:05:07,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:07,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:05:07,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:07,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:05:07,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:07,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:05:07,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:07,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:07,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:07,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:07,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:07,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:07,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:05:07,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:07,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:07,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:07,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:07,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:07,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 03:05:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:07,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:07,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:07,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:05:07,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:07,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 03:05:07,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:07,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:05:07,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:05:07,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 03:05:07,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:05:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:07,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:07,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:07,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:07,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:07,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:05:07,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:05:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:05:07,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:07,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 03:05:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:07,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:07,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:07,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:05:07,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:07,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:07,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:07,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:07,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:05:07,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:07,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:07,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:07,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:07,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:07,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:07,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:07,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:07,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:07,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:07,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:07,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:07,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:07,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 03:05:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:07,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:07,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:07,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:07,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:05:07,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:05:07,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 03:05:07,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:07,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:05:07,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:05:07,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:05:07,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:07,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:05:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:07,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:07,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:07,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:05:07,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:07,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 03:05:07,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:05:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:05:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:05:07,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:07,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:05:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:07,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:07,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:07,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:05:07,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:07,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:05:07,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:05:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:05:07,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:07,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:05:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:07,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:07,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:07,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:05:07,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:07,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:07,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:07,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:07,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:05:07,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:07,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:07,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 03:05:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:07,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:07,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:07,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:07,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:07,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:07,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:07,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:07,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:05:07,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:07,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:07,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 03:05:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:07,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:07,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:07,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:07,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:07,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:07,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:07,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:07,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:05:07,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:07,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:07,669 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 03:05:07,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133415074] [2020-09-25 03:05:07,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:05:07,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 03:05:07,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265164169] [2020-09-25 03:05:07,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 03:05:07,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:05:07,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 03:05:07,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:05:07,673 INFO L87 Difference]: Start difference. First operand 344 states and 386 transitions. Second operand 19 states. [2020-09-25 03:05:08,243 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:05:09,888 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:10,240 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:10,605 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:10,981 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:11,307 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:05:11,624 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:11,939 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:05:12,329 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:12,707 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:13,033 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:13,485 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:05:13,822 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:14,208 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:05:14,604 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:05:14,951 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:05:15,321 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:15,961 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-25 03:05:16,312 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:05:17,169 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 03:05:18,870 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 03:05:19,503 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-25 03:05:20,201 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 03:05:20,947 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 194 [2020-09-25 03:05:23,020 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:05:23,340 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:05:23,681 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:05:24,040 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 03:05:26,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:05:26,269 INFO L93 Difference]: Finished difference Result 1421 states and 1967 transitions. [2020-09-25 03:05:26,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-09-25 03:05:26,269 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 230 [2020-09-25 03:05:26,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:05:26,291 INFO L225 Difference]: With dead ends: 1421 [2020-09-25 03:05:26,293 INFO L226 Difference]: Without dead ends: 1152 [2020-09-25 03:05:26,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1318 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=859, Invalid=3833, Unknown=0, NotChecked=0, Total=4692 [2020-09-25 03:05:26,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-09-25 03:05:26,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 906. [2020-09-25 03:05:26,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 906 states. [2020-09-25 03:05:26,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1070 transitions. [2020-09-25 03:05:26,475 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1070 transitions. Word has length 230 [2020-09-25 03:05:26,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:05:26,475 INFO L479 AbstractCegarLoop]: Abstraction has 906 states and 1070 transitions. [2020-09-25 03:05:26,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 03:05:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1070 transitions. [2020-09-25 03:05:26,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 03:05:26,480 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:05:26,480 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:05:26,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:05:26,481 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:05:26,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:05:26,481 INFO L82 PathProgramCache]: Analyzing trace with hash 445785641, now seen corresponding path program 1 times [2020-09-25 03:05:26,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:05:26,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805573752] [2020-09-25 03:05:26,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:05:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:26,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:26,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking...