/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=LOWLEXORDER --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_spec2_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:18:31,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:18:31,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:18:31,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:18:31,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:18:31,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:18:31,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:18:31,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:18:31,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:18:31,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:18:31,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:18:31,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:18:31,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:18:31,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:18:31,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:18:31,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:18:31,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:18:31,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:18:31,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:18:31,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:18:31,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:18:31,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:18:31,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:18:31,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:18:31,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:18:31,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:18:31,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:18:31,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:18:31,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:18:31,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:18:31,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:18:31,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:18:31,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:18:31,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:18:31,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:18:31,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:18:31,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:18:31,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:18:31,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:18:31,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:18:31,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:18:31,185 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 [2020-09-24 21:18:31,219 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:18:31,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:18:31,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:18:31,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:18:31,222 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:18:31,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:18:31,222 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:18:31,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:18:31,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:18:31,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:18:31,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:18:31,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:18:31,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:18:31,223 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:18:31,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:18:31,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:18:31,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:18:31,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:18:31,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:18:31,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:18:31,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:18:31,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:18:31,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:18:31,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:18:31,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:18:31,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:18:31,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:18:31,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:18:31,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:18:31,228 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:18:31,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:18:31,750 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:18:31,754 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:18:31,757 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:18:31,758 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:18:31,759 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product25.cil.c [2020-09-24 21:18:31,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb3c13737/d90520bbf37b49bc9f29373380e47797/FLAG43957385d [2020-09-24 21:18:32,457 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:18:32,458 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product25.cil.c [2020-09-24 21:18:32,495 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb3c13737/d90520bbf37b49bc9f29373380e47797/FLAG43957385d [2020-09-24 21:18:32,693 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb3c13737/d90520bbf37b49bc9f29373380e47797 [2020-09-24 21:18:32,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:18:32,715 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:18:32,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:18:32,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:18:32,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:18:32,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:18:32" (1/1) ... [2020-09-24 21:18:32,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:32, skipping insertion in model container [2020-09-24 21:18:32,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:18:32" (1/1) ... [2020-09-24 21:18:32,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:18:32,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:18:33,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:18:33,168 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:18:33,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:18:33,380 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:18:33,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:33 WrapperNode [2020-09-24 21:18:33,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:18:33,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:18:33,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:18:33,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:18:33,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:33" (1/1) ... [2020-09-24 21:18:33,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:33" (1/1) ... [2020-09-24 21:18:33,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:33" (1/1) ... [2020-09-24 21:18:33,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:33" (1/1) ... [2020-09-24 21:18:33,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:33" (1/1) ... [2020-09-24 21:18:33,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:33" (1/1) ... [2020-09-24 21:18:33,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:33" (1/1) ... [2020-09-24 21:18:33,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:18:33,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:18:33,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:18:33,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:18:33,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:33" (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 [2020-09-24 21:18:33,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:18:33,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:18:33,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:18:33,555 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:18:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:18:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:18:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:18:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:18:33,556 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:18:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:18:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:18:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:18:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:18:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:18:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:18:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:18:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:18:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:18:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:18:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:18:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:18:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:18:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:18:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:18:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:18:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:18:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:18:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:18:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:18:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:18:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:18:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:18:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:18:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:18:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:18:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:18:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:18:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:18:33,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:18:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:18:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:18:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:18:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:18:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:18:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:18:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:18:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:18:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:18:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:18:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:18:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:18:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:18:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:18:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:18:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:18:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:18:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:18:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:18:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:18:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:18:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:18:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:18:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:18:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:18:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:18:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:18:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:18:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:18:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:18:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:18:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:18:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:18:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:18:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:18:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:18:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:18:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:18:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:18:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:18:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:18:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:18:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:18:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:18:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:18:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:18:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:18:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:18:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:18:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:18:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:18:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:18:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:18:34,684 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:18:34,684 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:18:34,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:18:34 BoogieIcfgContainer [2020-09-24 21:18:34,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:18:34,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:18:34,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:18:34,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:18:34,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:18:32" (1/3) ... [2020-09-24 21:18:34,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548c2cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:18:34, skipping insertion in model container [2020-09-24 21:18:34,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:33" (2/3) ... [2020-09-24 21:18:34,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548c2cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:18:34, skipping insertion in model container [2020-09-24 21:18:34,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:18:34" (3/3) ... [2020-09-24 21:18:34,700 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product25.cil.c [2020-09-24 21:18:34,711 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:18:34,722 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:18:34,743 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:18:34,773 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:18:34,773 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:18:34,773 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:18:34,773 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:18:34,774 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:18:34,774 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:18:34,774 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:18:34,774 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:18:34,799 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2020-09-24 21:18:34,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 21:18:34,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:18:34,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:18:34,818 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:18:34,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:18:34,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1113961409, now seen corresponding path program 1 times [2020-09-24 21:18:34,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:18:34,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520051664] [2020-09-24 21:18:34,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:18:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:35,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:35,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:36,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:37,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:38,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:40,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:40,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 21:18:40,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:18:40,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-24 21:18:40,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:40,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:18:40,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 21:18:40,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 21:18:40,655 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:18:40,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:18:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:40,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:40,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:40,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:18:40,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:40,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-24 21:18:40,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:40,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:40,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:40,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:18:40,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:41,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:18:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:41,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:41,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:41,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:41,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:41,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:18:41,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:41,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:41,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:41,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:41,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-24 21:18:41,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:18:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:41,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:41,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:41,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:41,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:41,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:18:41,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:41,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:41,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:41,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:41,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:41,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:18:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:41,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:41,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:41,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:41,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:41,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:18:41,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:41,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:41,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:41,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:18:41,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:41,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:18:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:41,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:41,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:41,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:41,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:41,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:18:41,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:41,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:41,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:41,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:41,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:41,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:18:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:41,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:41,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:41,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:18:41,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:41,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:18:41,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:41,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:41,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:41,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:18:41,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:18:41,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:18:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:41,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:41,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:41,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:41,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:41,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:18:41,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:41,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:18:41,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:18:41,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:18:41,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:18:41,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:18:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:41,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:41,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:41,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:41,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:41,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:18:41,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:18:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:18:41,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:18:41,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:41,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:18:41,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520051664] [2020-09-24 21:18:41,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:18:41,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:18:41,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405328282] [2020-09-24 21:18:41,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:18:41,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:18:41,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:18:41,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:18:41,414 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 5 states. [2020-09-24 21:18:42,367 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:18:43,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:18:43,478 INFO L93 Difference]: Finished difference Result 426 states and 504 transitions. [2020-09-24 21:18:43,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:18:43,481 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 21:18:43,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:18:43,512 INFO L225 Difference]: With dead ends: 426 [2020-09-24 21:18:43,513 INFO L226 Difference]: Without dead ends: 278 [2020-09-24 21:18:43,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:18:43,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-09-24 21:18:43,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 233. [2020-09-24 21:18:43,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-09-24 21:18:43,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 250 transitions. [2020-09-24 21:18:43,682 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 250 transitions. Word has length 148 [2020-09-24 21:18:43,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:18:43,684 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 250 transitions. [2020-09-24 21:18:43,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:18:43,684 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 250 transitions. [2020-09-24 21:18:43,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 21:18:43,689 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:18:43,689 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:18:43,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:18:43,690 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:18:43,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:18:43,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1636108198, now seen corresponding path program 1 times [2020-09-24 21:18:43,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:18:43,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444019205] [2020-09-24 21:18:43,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:18:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:43,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:44,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:45,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:45,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:46,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:48,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:48,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 21:18:48,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:18:48,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-24 21:18:48,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:48,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:18:48,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:18:48,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 21:18:48,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:49,177 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:18:49,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:18:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:49,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:49,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:49,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:18:49,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:49,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-09-24 21:18:49,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:49,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:49,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:49,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:18:49,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:49,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:18:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:49,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:49,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:49,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:49,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:49,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:18:49,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:49,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:49,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:49,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:49,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:49,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:18:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:49,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:49,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:49,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:49,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:49,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:18:49,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:49,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:49,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:49,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:49,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:49,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:18:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:49,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:49,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:49,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:49,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:49,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:18:49,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:49,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:49,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:49,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:18:49,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:49,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:18:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:49,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:49,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:49,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:49,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:49,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:18:49,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:49,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:49,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:49,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:49,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:49,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:18:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:49,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:49,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:49,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:18:49,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:49,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:18:49,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:49,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:49,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:49,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:18:49,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:49,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 21:18:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:49,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:49,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:49,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:18:49,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:49,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:18:49,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:49,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:49,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:49,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 21:18:49,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:49,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:18:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:49,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:49,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:49,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:49,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:49,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:18:49,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:49,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:18:49,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:49,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:18:49,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:49,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:18:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:49,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:49,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:49,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:49,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:49,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 21:18:49,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:49,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:18:49,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:49,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:18:49,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:49,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 21:18:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:49,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:49,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:49,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:49,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:49,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:18:49,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:18:49,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:18:49,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:18:49,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:49,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:18:49,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444019205] [2020-09-24 21:18:49,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:18:49,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:18:49,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657745924] [2020-09-24 21:18:49,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:18:49,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:18:49,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:18:49,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:18:49,895 INFO L87 Difference]: Start difference. First operand 233 states and 250 transitions. Second operand 10 states. [2020-09-24 21:18:50,567 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:18:51,758 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:18:52,158 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:18:52,533 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:52,945 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:18:53,300 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:18:53,921 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:18:54,242 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:54,687 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:18:55,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:18:55,829 INFO L93 Difference]: Finished difference Result 578 states and 702 transitions. [2020-09-24 21:18:55,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 21:18:55,833 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-09-24 21:18:55,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:18:55,839 INFO L225 Difference]: With dead ends: 578 [2020-09-24 21:18:55,839 INFO L226 Difference]: Without dead ends: 442 [2020-09-24 21:18:55,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:18:55,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-09-24 21:18:55,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 323. [2020-09-24 21:18:55,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-24 21:18:55,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 352 transitions. [2020-09-24 21:18:55,943 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 352 transitions. Word has length 157 [2020-09-24 21:18:55,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:18:55,944 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 352 transitions. [2020-09-24 21:18:55,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:18:55,944 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 352 transitions. [2020-09-24 21:18:55,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 21:18:55,947 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:18:55,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:18:55,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:18:55,948 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:18:55,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:18:55,948 INFO L82 PathProgramCache]: Analyzing trace with hash -499221574, now seen corresponding path program 1 times [2020-09-24 21:18:55,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:18:55,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351621873] [2020-09-24 21:18:55,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:18:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:56,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:56,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:56,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:59,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:00,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:00,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 21:19:00,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:19:01,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 21:19:01,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:19:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:19:01,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-24 21:19:01,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:01,349 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:01,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:19:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:01,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:01,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:01,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:19:01,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:01,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 21:19:01,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:01,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:19:01,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:01,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:19:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:01,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:01,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:01,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:01,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:01,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:01,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:01,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:01,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:01,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:01,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:01,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:19:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:01,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:01,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:01,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:01,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:01,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:01,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:01,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:01,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:01,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:19:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:01,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:01,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:01,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:01,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:01,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:19:01,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:01,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:01,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:19:01,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:19:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:01,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:01,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:01,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:01,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:01,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:01,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:01,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:01,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:01,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:01,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:01,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:19:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:01,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:01,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:01,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:01,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:01,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:01,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:19:01,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:01,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:19:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:01,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:01,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:01,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:19:01,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:01,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:19:01,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:01,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:01,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:01,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:19:01,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:01,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 21:19:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:01,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:01,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:01,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:01,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:19:01,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:19:01,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 21:19:01,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:01,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:19:01,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:19:01,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:19:01,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:01,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:19:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:01,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:01,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:01,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:01,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:01,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:01,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:01,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:01,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:01,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:01,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:01,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 21:19:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:01,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:01,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:01,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:01,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:01,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:01,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:01,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:01,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:01,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:01,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:01,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 21:19:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:01,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:01,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:01,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:01,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:01,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:19:01,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:19:01,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:01,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:01,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:01,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:19:01,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351621873] [2020-09-24 21:19:01,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:19:01,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:19:01,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792737784] [2020-09-24 21:19:01,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:19:01,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:19:01,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:19:01,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:19:01,965 INFO L87 Difference]: Start difference. First operand 323 states and 352 transitions. Second operand 11 states. [2020-09-24 21:19:02,586 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:19:03,796 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:04,102 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:04,476 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:04,802 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:05,114 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:05,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:19:05,446 INFO L93 Difference]: Finished difference Result 529 states and 614 transitions. [2020-09-24 21:19:05,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 21:19:05,446 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 171 [2020-09-24 21:19:05,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:19:05,448 INFO L225 Difference]: With dead ends: 529 [2020-09-24 21:19:05,448 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:19:05,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:19:05,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:19:05,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:19:05,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:19:05,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:19:05,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 171 [2020-09-24 21:19:05,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:19:05,454 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:19:05,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:19:05,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:19:05,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:19:05,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:19:05,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:19:05,675 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:05,864 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:06,059 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:06,231 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:06,410 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:06,590 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:06,751 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:06,920 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:07,203 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-24 21:19:07,348 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 9 [2020-09-24 21:19:07,530 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:07,696 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:07,844 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:08,011 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:08,170 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:08,323 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:08,480 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:08,647 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:08,804 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:08,967 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:09,120 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:09,283 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:09,445 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:09,598 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:09,761 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:10,029 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-09-24 21:19:10,289 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-09-24 21:19:10,545 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-09-24 21:19:10,648 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 11 [2020-09-24 21:19:10,921 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-09-24 21:19:11,027 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 11 [2020-09-24 21:19:11,294 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-09-24 21:19:11,548 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-09-24 21:19:11,815 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-09-24 21:19:12,168 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-09-24 21:19:12,323 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:12,477 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:12,647 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:12,809 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:12,972 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:13,135 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:13,297 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:13,455 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:13,612 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:13,770 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:13,923 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:14,106 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:14,268 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:14,430 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:14,583 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:14,830 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 14 [2020-09-24 21:19:14,996 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:15,157 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:15,320 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:15,483 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:15,642 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:15,801 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:15,962 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:16,222 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 9 [2020-09-24 21:19:16,384 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:16,547 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:16,709 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:16,864 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:17,219 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 21:19:17,485 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-24 21:19:17,746 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-24 21:19:18,197 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 21:19:18,646 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 21:19:18,904 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-24 21:19:19,258 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 194 [2020-09-24 21:19:19,615 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-24 21:19:19,779 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:19,940 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:20,102 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:20,216 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 9 [2020-09-24 21:19:20,369 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:20,532 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:20,689 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:20,846 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:20,999 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:21,155 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:21,320 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:21,772 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 11 [2020-09-24 21:19:21,994 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-24 21:19:22,213 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 1 [2020-09-24 21:19:22,634 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 12 [2020-09-24 21:19:22,902 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-24 21:19:23,071 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 26 [2020-09-24 21:19:23,318 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:23,953 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 25 [2020-09-24 21:19:24,415 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 25 [2020-09-24 21:19:24,832 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 12 [2020-09-24 21:19:25,467 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 25 [2020-09-24 21:19:25,918 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 12