/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 interpolation-heuristic=FIRST --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_spec3_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:47:35,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:47:35,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:47:35,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:47:35,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:47:35,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:47:35,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:47:35,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:47:35,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:47:35,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:47:35,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:47:35,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:47:35,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:47:35,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:47:35,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:47:35,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:47:35,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:47:35,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:47:35,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:47:35,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:47:35,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:47:35,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:47:35,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:47:35,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:47:35,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:47:35,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:47:35,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:47:35,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:47:35,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:47:35,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:47:35,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:47:35,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:47:35,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:47:35,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:47:35,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:47:35,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:47:35,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:47:35,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:47:35,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:47:35,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:47:35,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:47:35,781 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 15:47:35,807 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:47:35,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:47:35,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:47:35,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:47:35,809 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:47:35,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:47:35,810 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:47:35,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:47:35,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:47:35,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:47:35,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:47:35,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:47:35,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:47:35,811 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:47:35,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:47:35,811 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:47:35,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:47:35,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:47:35,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:47:35,812 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:47:35,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:47:35,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:47:35,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:47:35,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:47:35,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:47:35,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:47:35,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:47:35,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:47:35,814 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:47:35,814 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:47:36,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:47:36,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:47:36,300 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:47:36,304 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:47:36,305 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:47:36,307 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-09-24 15:47:36,385 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e32675f07/3de78d5941fe40c19c6b33fc2efe5705/FLAGce48cdd3e [2020-09-24 15:47:37,034 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:47:37,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-09-24 15:47:37,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e32675f07/3de78d5941fe40c19c6b33fc2efe5705/FLAGce48cdd3e [2020-09-24 15:47:37,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e32675f07/3de78d5941fe40c19c6b33fc2efe5705 [2020-09-24 15:47:37,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:47:37,283 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:47:37,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:47:37,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:47:37,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:47:37,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:47:37" (1/1) ... [2020-09-24 15:47:37,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7701fc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:37, skipping insertion in model container [2020-09-24 15:47:37,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:47:37" (1/1) ... [2020-09-24 15:47:37,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:47:37,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:47:37,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:47:37,871 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:47:37,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:47:38,007 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:47:38,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:38 WrapperNode [2020-09-24 15:47:38,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:47:38,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:47:38,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:47:38,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:47:38,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:38" (1/1) ... [2020-09-24 15:47:38,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:38" (1/1) ... [2020-09-24 15:47:38,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:38" (1/1) ... [2020-09-24 15:47:38,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:38" (1/1) ... [2020-09-24 15:47:38,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:38" (1/1) ... [2020-09-24 15:47:38,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:38" (1/1) ... [2020-09-24 15:47:38,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:38" (1/1) ... [2020-09-24 15:47:38,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:47:38,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:47:38,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:47:38,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:47:38,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:38" (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 15:47:38,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:47:38,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:47:38,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:47:38,239 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:47:38,240 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:47:38,240 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:47:38,240 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:47:38,240 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:47:38,240 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:47:38,241 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:47:38,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:47:38,241 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:47:38,241 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:47:38,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 15:47:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 15:47:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:47:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:47:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:47:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:47:38,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:47:38,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:47:38,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:47:38,243 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:47:38,243 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:47:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:47:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:47:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:47:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:47:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:47:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 15:47:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 15:47:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:47:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:47:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:47:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:47:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:47:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:47:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 15:47:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 15:47:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 15:47:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:47:38,247 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:47:38,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:47:38,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:47:38,247 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:47:38,247 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:47:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:47:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:47:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:47:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:47:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:47:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:47:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:47:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:47:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:47:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 15:47:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 15:47:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:47:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:47:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:47:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:47:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:47:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:47:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:47:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:47:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:47:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:47:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:47:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:47:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:47:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:47:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:47:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:47:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:47:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:47:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:47:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:47:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:47:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:47:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:47:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:47:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:47:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:47:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:47:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:47:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:47:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 15:47:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:47:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:47:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:47:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 15:47:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 15:47:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 15:47:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 15:47:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:47:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:47:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:47:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:47:39,544 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:47:39,544 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:47:39,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:47:39 BoogieIcfgContainer [2020-09-24 15:47:39,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:47:39,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:47:39,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:47:39,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:47:39,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:47:37" (1/3) ... [2020-09-24 15:47:39,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69358b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:47:39, skipping insertion in model container [2020-09-24 15:47:39,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:47:38" (2/3) ... [2020-09-24 15:47:39,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69358b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:47:39, skipping insertion in model container [2020-09-24 15:47:39,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:47:39" (3/3) ... [2020-09-24 15:47:39,563 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2020-09-24 15:47:39,575 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:47:39,587 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:47:39,610 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:47:39,648 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:47:39,648 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:47:39,648 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:47:39,649 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:47:39,649 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:47:39,650 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:47:39,650 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:47:39,650 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:47:39,685 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states. [2020-09-24 15:47:39,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 15:47:39,704 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:47:39,705 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] [2020-09-24 15:47:39,706 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:47:39,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:47:39,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1599034145, now seen corresponding path program 1 times [2020-09-24 15:47:39,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:47:39,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848343981] [2020-09-24 15:47:39,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:47:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:40,058 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:40,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:40,059 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:40,059 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:40,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 15:47:40,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:40,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:47:40,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:47:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:40,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-24 15:47:40,539 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:47:40,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:47:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:40,556 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:40,557 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:40,557 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:40,557 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:40,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:47:40,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:40,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:40,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:40,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:40,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:40,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:40,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:40,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:47:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:40,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:40,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:40,647 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:40,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:40,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:40,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:40,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:40,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:40,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:40,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:40,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:40,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:40,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:47:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:40,652 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:40,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:40,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:40,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:40,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:40,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:40,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:40,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:40,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:40,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:40,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:40,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:47:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:40,657 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:40,657 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:40,657 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:40,658 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:40,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:40,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:40,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:40,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:40,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:40,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:40,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:47:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:40,663 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:40,663 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:40,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:40,664 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:40,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:40,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:40,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:40,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:40,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:40,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:40,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:40,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:40,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:47:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:40,669 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:40,669 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:40,669 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:40,669 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:40,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:40,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:40,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:40,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:40,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:40,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:40,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:40,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:40,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:47:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:40,675 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:40,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:40,676 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:40,676 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:40,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:40,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:40,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:40,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:40,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:40,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:40,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:40,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:40,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:47:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:40,681 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:40,682 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:40,682 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:40,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:40,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:40,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:40,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:40,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:40,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:40,713 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 15:47:40,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848343981] [2020-09-24 15:47:40,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:47:40,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:47:40,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238888496] [2020-09-24 15:47:40,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:47:40,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:47:40,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:47:40,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:47:40,746 INFO L87 Difference]: Start difference. First operand 349 states. Second operand 3 states. [2020-09-24 15:47:42,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:47:42,317 INFO L93 Difference]: Finished difference Result 567 states and 676 transitions. [2020-09-24 15:47:42,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:47:42,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 15:47:42,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:47:42,357 INFO L225 Difference]: With dead ends: 567 [2020-09-24 15:47:42,357 INFO L226 Difference]: Without dead ends: 343 [2020-09-24 15:47:42,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:47:42,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-24 15:47:42,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 298. [2020-09-24 15:47:42,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-24 15:47:42,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 328 transitions. [2020-09-24 15:47:42,476 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 328 transitions. Word has length 153 [2020-09-24 15:47:42,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:47:42,477 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 328 transitions. [2020-09-24 15:47:42,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:47:42,477 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 328 transitions. [2020-09-24 15:47:42,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 15:47:42,483 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:47:42,483 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] [2020-09-24 15:47:42,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:47:42,484 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:47:42,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:47:42,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1907459970, now seen corresponding path program 1 times [2020-09-24 15:47:42,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:47:42,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1026576298] [2020-09-24 15:47:42,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:47:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:42,562 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:42,562 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:42,562 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:42,562 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:42,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 15:47:42,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:42,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:47:42,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:42,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:42,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:47:42,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:47:42,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:43,022 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:47:43,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:47:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:43,034 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:43,034 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:43,035 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:43,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:43,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:47:43,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:43,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:43,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:43,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:43,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:43,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:43,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:43,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:47:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:43,084 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:43,085 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:43,085 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:43,085 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:43,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:43,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:43,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:43,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:43,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:43,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:43,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:47:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:43,089 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:43,090 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:43,090 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:43,090 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:43,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:43,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:43,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:43,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:43,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:43,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:43,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:43,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:43,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:47:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:43,094 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:43,094 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:43,095 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:43,095 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:43,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:43,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:43,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:43,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:43,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:43,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:43,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:43,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:43,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:47:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:43,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:43,101 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:43,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:43,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:43,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:43,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:43,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:43,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:43,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:43,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:43,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:43,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:43,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 15:47:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:43,106 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:43,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:43,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:43,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:43,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:43,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:43,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:43,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:43,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:43,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:43,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:43,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:43,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:47:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:43,111 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:43,112 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:43,112 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:43,112 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:43,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:43,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:43,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:43,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:43,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:43,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:43,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:43,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:43,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 15:47:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:43,117 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:43,117 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:43,117 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:43,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:43,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:43,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:43,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:43,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:43,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:43,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:43,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:43,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:43,144 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 15:47:43,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1026576298] [2020-09-24 15:47:43,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:47:43,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:47:43,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058877700] [2020-09-24 15:47:43,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:47:43,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:47:43,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:47:43,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:47:43,148 INFO L87 Difference]: Start difference. First operand 298 states and 328 transitions. Second operand 4 states. [2020-09-24 15:47:43,812 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:47:45,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:47:45,062 INFO L93 Difference]: Finished difference Result 478 states and 543 transitions. [2020-09-24 15:47:45,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:47:45,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 15:47:45,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:47:45,069 INFO L225 Difference]: With dead ends: 478 [2020-09-24 15:47:45,069 INFO L226 Difference]: Without dead ends: 326 [2020-09-24 15:47:45,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:47:45,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-09-24 15:47:45,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 288. [2020-09-24 15:47:45,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-09-24 15:47:45,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 315 transitions. [2020-09-24 15:47:45,121 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 315 transitions. Word has length 154 [2020-09-24 15:47:45,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:47:45,121 INFO L479 AbstractCegarLoop]: Abstraction has 288 states and 315 transitions. [2020-09-24 15:47:45,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:47:45,122 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 315 transitions. [2020-09-24 15:47:45,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 15:47:45,124 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:47:45,125 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] [2020-09-24 15:47:45,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:47:45,125 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:47:45,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:47:45,126 INFO L82 PathProgramCache]: Analyzing trace with hash -383907644, now seen corresponding path program 1 times [2020-09-24 15:47:45,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:47:45,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1020114488] [2020-09-24 15:47:45,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:47:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:45,220 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:47:45,220 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:45,220 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:45,220 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:45,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 15:47:45,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:45,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:47:45,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:45,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:47:45,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 15:47:45,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 15:47:45,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:45,551 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:47:45,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:47:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:45,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:45,594 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:45,595 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:45,595 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:45,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:47:45,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:45,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:45,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:45,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:45,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:45,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:47:45,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:45,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:47:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:45,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:45,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:45,647 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:45,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:45,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:45,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:45,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:45,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:47:45,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:45,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:47:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:45,652 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:45,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:45,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:45,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:45,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:45,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:45,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:45,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:47:45,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:45,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:47:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:45,658 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:45,658 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:45,658 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:45,659 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:45,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:45,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:45,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:45,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:45,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:47:45,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:45,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:47:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:45,664 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:45,664 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:45,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:45,665 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:45,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:45,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:45,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:45,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:45,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:45,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:45,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:47:45,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:45,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:47:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:45,669 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:45,669 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:45,669 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:45,670 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:45,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:45,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:45,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:45,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:45,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:45,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:45,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:45,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:45,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:47:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:45,674 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:45,674 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:45,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:45,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:45,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:45,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:45,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:45,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:45,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:45,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:45,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:45,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:45,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 15:47:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:45,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:45,680 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:45,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:45,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:45,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:45,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:45,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:45,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:45,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:45,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:45,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:45,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:45,712 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 15:47:45,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1020114488] [2020-09-24 15:47:45,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:47:45,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:47:45,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237498937] [2020-09-24 15:47:45,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:47:45,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:47:45,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:47:45,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:47:45,715 INFO L87 Difference]: Start difference. First operand 288 states and 315 transitions. Second operand 4 states. [2020-09-24 15:47:46,312 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:47:48,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:47:48,372 INFO L93 Difference]: Finished difference Result 696 states and 802 transitions. [2020-09-24 15:47:48,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:47:48,372 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 15:47:48,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:47:48,377 INFO L225 Difference]: With dead ends: 696 [2020-09-24 15:47:48,378 INFO L226 Difference]: Without dead ends: 518 [2020-09-24 15:47:48,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:47:48,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-09-24 15:47:48,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 460. [2020-09-24 15:47:48,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-09-24 15:47:48,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 515 transitions. [2020-09-24 15:47:48,469 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 515 transitions. Word has length 163 [2020-09-24 15:47:48,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:47:48,470 INFO L479 AbstractCegarLoop]: Abstraction has 460 states and 515 transitions. [2020-09-24 15:47:48,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:47:48,470 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 515 transitions. [2020-09-24 15:47:48,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 15:47:48,474 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:47:48,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:47:48,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:47:48,474 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:47:48,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:47:48,475 INFO L82 PathProgramCache]: Analyzing trace with hash 621095136, now seen corresponding path program 1 times [2020-09-24 15:47:48,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:47:48,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030854705] [2020-09-24 15:47:48,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:47:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:48,568 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:48,568 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:48,568 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:48,569 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:48,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 15:47:48,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:48,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:47:48,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:48,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:47:48,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 15:47:48,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-24 15:47:48,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:48,921 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:47:48,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:47:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:48,962 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:48,963 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:48,963 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:48,963 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:48,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:47:48,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:48,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:48,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 15:47:48,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:49,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:47:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:49,025 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:49,026 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:49,026 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:49,026 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:49,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:49,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:49,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:49,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:49,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:49,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:49,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:47:49,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:47:49,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:47:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:49,046 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:49,046 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:49,046 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:49,046 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:49,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:49,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:49,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:47:49,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:49,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:49,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:47:49,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 15:47:49,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:47:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:49,059 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:49,060 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:49,065 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:49,065 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:49,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:49,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:49,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:47:49,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:49,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:49,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:49,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:47:49,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:49,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:47:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:49,073 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:49,073 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:49,073 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:49,073 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:49,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:47:49,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:49,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:47:49,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:49,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:49,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:49,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:47:49,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:49,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 15:47:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:49,094 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:49,094 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:49,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:49,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:49,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:47:49,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:49,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:49,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:49,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:49,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:49,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:47:49,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:49,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 15:47:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:49,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:49,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:49,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:49,100 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:49,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:49,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:49,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:49,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:47:49,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:49,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:47:49,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:49,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 15:47:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:49,119 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:49,120 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:49,120 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:49,120 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:49,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:49,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:49,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:47:49,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:49,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:47:49,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:47:49,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:47:49,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:49,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 15:47:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:47:49,148 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:47:49,148 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:47:49,148 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:47:49,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:47:49,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:47:49,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:47:49,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:47:49,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:47:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:47:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:47:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:47:49,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:47:49,185 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 15:47:49,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030854705] [2020-09-24 15:47:49,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:47:49,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:47:49,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470251439] [2020-09-24 15:47:49,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:47:49,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:47:49,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:47:49,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:47:49,189 INFO L87 Difference]: Start difference. First operand 460 states and 515 transitions. Second operand 9 states. [2020-09-24 15:47:49,706 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:47:52,029 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:47:52,370 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:47:52,771 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:47:53,136 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:47:53,435 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:47:53,736 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:47:54,027 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:47:55,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:47:55,437 INFO L93 Difference]: Finished difference Result 1259 states and 1558 transitions. [2020-09-24 15:47:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 15:47:55,438 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 15:47:55,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:47:55,445 INFO L225 Difference]: With dead ends: 1259 [2020-09-24 15:47:55,445 INFO L226 Difference]: Without dead ends: 909 [2020-09-24 15:47:55,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:47:55,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2020-09-24 15:47:55,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 781. [2020-09-24 15:47:55,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 781 states. [2020-09-24 15:47:55,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 904 transitions. [2020-09-24 15:47:55,594 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 904 transitions. Word has length 172 [2020-09-24 15:47:55,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:47:55,595 INFO L479 AbstractCegarLoop]: Abstraction has 781 states and 904 transitions. [2020-09-24 15:47:55,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:47:55,595 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 904 transitions. [2020-09-24 15:47:55,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 15:47:55,599 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:47:55,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:47:55,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:47:55,600 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:47:55,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:47:55,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1515693883, now seen corresponding path program 1 times [2020-09-24 15:47:55,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:47:55,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883096930] [2020-09-24 15:47:55,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:47:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:47:55,695 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:47:55,695 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:47:55,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:47:55,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:47:55 BoogieIcfgContainer [2020-09-24 15:47:55,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:47:55,728 INFO L168 Benchmark]: Toolchain (without parser) took 18450.03 ms. Allocated memory was 138.9 MB in the beginning and 561.0 MB in the end (delta: 422.1 MB). Free memory was 101.5 MB in the beginning and 270.8 MB in the end (delta: -169.3 MB). Peak memory consumption was 252.7 MB. Max. memory is 7.1 GB. [2020-09-24 15:47:55,728 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 15:47:55,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.56 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 100.8 MB in the beginning and 168.2 MB in the end (delta: -67.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:47:55,730 INFO L168 Benchmark]: Boogie Preprocessor took 140.77 ms. Allocated memory is still 201.3 MB. Free memory was 168.2 MB in the beginning and 164.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:47:55,731 INFO L168 Benchmark]: RCFGBuilder took 1402.28 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 164.1 MB in the beginning and 169.3 MB in the end (delta: -5.2 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-09-24 15:47:55,732 INFO L168 Benchmark]: TraceAbstraction took 16172.65 ms. Allocated memory was 233.8 MB in the beginning and 561.0 MB in the end (delta: 327.2 MB). Free memory was 169.3 MB in the beginning and 270.8 MB in the end (delta: -101.5 MB). Peak memory consumption was 225.7 MB. Max. memory is 7.1 GB. [2020-09-24 15:47:55,736 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 722.56 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 100.8 MB in the beginning and 168.2 MB in the end (delta: -67.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.77 ms. Allocated memory is still 201.3 MB. Free memory was 168.2 MB in the beginning and 164.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1402.28 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 164.1 MB in the beginning and 169.3 MB in the end (delta: -5.2 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16172.65 ms. Allocated memory was 233.8 MB in the beginning and 561.0 MB in the end (delta: 327.2 MB). Free memory was 169.3 MB in the beginning and 270.8 MB in the end (delta: -101.5 MB). Peak memory consumption was 225.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 193]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L564] int cleanupTimeShifts = 4; [L667] int pumpRunning = 0; [L668] int systemActive = 1; [L640] int retValue_acc ; [L641] int tmp ; [L645] FCALL select_helpers() [L646] FCALL select_features() [L647] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L647] RET, EXPR valid_product() [L647] tmp = valid_product() [L649] COND TRUE \read(tmp) [L651] FCALL setup() [L652] CALL runTest() [L634] CALL test() [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) [L962] CALL waterRise() [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 [L962] RET waterRise() [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L984] tmp___1 = __VERIFIER_nondet_int() [L986] COND TRUE \read(tmp___1) [L988] CALL stopSystem() [L894] COND FALSE !(\read(pumpRunning)) [L901] systemActive = 0 [L988] RET stopSystem() [L995] CALL timeShift() [L675] COND FALSE !(\read(pumpRunning)) [L682] COND FALSE !(\read(systemActive)) [L690] CALL __utac_acc__Specification3_spec__1() [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L913] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L913] RET, EXPR isMethaneLevelCritical() [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L919] CALL, EXPR getWaterLevel() [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L919] RET, EXPR getWaterLevel() [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L923] CALL, EXPR isPumpRunning() [L808] int retValue_acc ; [L811] retValue_acc = pumpRunning [L812] return (retValue_acc); [L923] RET, EXPR isPumpRunning() [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) [L929] CALL __automaton_fail() [L193] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 661 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1146 SDtfs, 1340 SDslu, 841 SDs, 0 SdLazy, 2604 SolverSat, 438 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=781occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 269 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 254932 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...