/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --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_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:42:37,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:42:37,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:42:37,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:42:37,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:42:37,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:42:37,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:42:37,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:42:37,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:42:37,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:42:37,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:42:37,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:42:37,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:42:37,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:42:37,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:42:37,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:42:37,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:42:37,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:42:37,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:42:37,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:42:37,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:42:37,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:42:37,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:42:37,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:42:37,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:42:37,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:42:37,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:42:37,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:42:37,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:42:37,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:42:37,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:42:37,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:42:37,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:42:37,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:42:37,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:42:37,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:42:37,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:42:37,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:42:37,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:42:37,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:42:37,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:42:37,176 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:42:37,203 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:42:37,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:42:37,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:42:37,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:42:37,205 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:42:37,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:42:37,206 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:42:37,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:42:37,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:42:37,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:42:37,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:42:37,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:42:37,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:42:37,207 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:42:37,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:42:37,207 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:42:37,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:42:37,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:42:37,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:42:37,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:42:37,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:42:37,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:42:37,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:42:37,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:42:37,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:42:37,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:42:37,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:42:37,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:42:37,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:42:37,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:42:37,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:42:37,686 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:42:37,691 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:42:37,692 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:42:37,693 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:42:37,694 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2020-09-25 00:42:37,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/80568757a/544ba1b554064e65b838bffda9070133/FLAG173bd4529 [2020-09-25 00:42:38,383 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:42:38,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2020-09-25 00:42:38,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/80568757a/544ba1b554064e65b838bffda9070133/FLAG173bd4529 [2020-09-25 00:42:38,650 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/80568757a/544ba1b554064e65b838bffda9070133 [2020-09-25 00:42:38,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:42:38,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:42:38,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:42:38,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:42:38,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:42:38,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:42:38" (1/1) ... [2020-09-25 00:42:38,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:38, skipping insertion in model container [2020-09-25 00:42:38,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:42:38" (1/1) ... [2020-09-25 00:42:38,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:42:38,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:42:39,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:42:39,216 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:42:39,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:42:39,394 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:42:39,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:39 WrapperNode [2020-09-25 00:42:39,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:42:39,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:42:39,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:42:39,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:42:39,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:39" (1/1) ... [2020-09-25 00:42:39,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:39" (1/1) ... [2020-09-25 00:42:39,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:39" (1/1) ... [2020-09-25 00:42:39,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:39" (1/1) ... [2020-09-25 00:42:39,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:39" (1/1) ... [2020-09-25 00:42:39,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:39" (1/1) ... [2020-09-25 00:42:39,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:39" (1/1) ... [2020-09-25 00:42:39,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:42:39,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:42:39,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:42:39,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:42:39,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:42:39,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:42:39,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:42:39,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:42:39,594 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:42:39,594 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:42:39,594 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:42:39,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:42:39,595 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:42:39,595 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:42:39,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:42:39,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:42:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:42:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:42:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:42:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:42:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:42:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:42:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:42:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:42:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:42:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:42:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:42:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:42:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:42:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:42:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:42:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:42:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:42:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:42:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:42:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 00:42:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:42:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:42:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:42:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:42:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:42:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:42:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:42:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:42:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:42:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:42:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:42:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:42:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:42:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:42:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:42:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:42:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:42:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:42:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:42:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:42:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:42:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:42:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:42:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:42:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:42:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:42:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:42:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:42:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:42:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:42:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:42:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:42:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:42:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:42:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:42:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 00:42:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 00:42:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:42:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:42:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:42:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 00:42:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:42:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:42:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:42:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:42:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:42:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:42:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:42:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:42:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:42:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:42:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:42:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:42:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:42:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:42:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:42:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:42:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:42:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:42:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:42:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:42:40,782 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:42:40,782 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:42:40,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:42:40 BoogieIcfgContainer [2020-09-25 00:42:40,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:42:40,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:42:40,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:42:40,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:42:40,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:42:38" (1/3) ... [2020-09-25 00:42:40,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34987682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:42:40, skipping insertion in model container [2020-09-25 00:42:40,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:42:39" (2/3) ... [2020-09-25 00:42:40,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34987682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:42:40, skipping insertion in model container [2020-09-25 00:42:40,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:42:40" (3/3) ... [2020-09-25 00:42:40,798 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product22.cil.c [2020-09-25 00:42:40,810 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:42:40,821 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:42:40,844 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:42:40,877 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:42:40,877 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:42:40,878 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:42:40,878 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:42:40,878 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:42:40,878 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:42:40,878 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:42:40,878 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:42:40,908 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 00:42:40,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 00:42:40,927 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:40,928 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] [2020-09-25 00:42:40,929 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:40,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:40,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1572596205, now seen corresponding path program 1 times [2020-09-25 00:42:40,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:40,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650175655] [2020-09-25 00:42:40,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:41,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:41,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:43,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:46,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:46,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 00:42:46,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:42:46,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:42:46,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:46,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:46,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 00:42:46,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:46,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 00:42:46,925 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:46,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:46,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:47,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:47,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:47,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:47,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-25 00:42:47,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:47,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:47,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:47,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:47,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:47,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:47,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:47,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:47,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:47,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:47,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:42:47,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:47,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:47,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:47,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:47,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:47,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:47,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:47,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:47,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:47,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:47,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:42:47,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:47,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:47,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:47,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:47,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:47,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:47,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:47,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:47,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:47,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:47,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:42:47,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:47,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:47,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:47,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:47,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:47,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:47,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:47,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:47,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:47,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:47,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:47,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:47,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:47,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:47,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:47,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:47,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 00:42:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:47,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:47,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:47,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:47,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:47,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:42:47,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:47,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:47,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:47,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:47,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:42:47,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:42:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:47,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:47,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:47,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:47,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:47,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:47,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:47,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:47,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:47,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:47,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:47,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 00:42:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:47,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:47,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:47,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:47,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:47,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:42:47,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:47,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:47,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:47,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:47,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:47,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:42:47,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650175655] [2020-09-25 00:42:47,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:47,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:42:47,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207952139] [2020-09-25 00:42:47,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:42:47,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:47,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:42:47,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:42:47,501 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-09-25 00:42:49,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:49,116 INFO L93 Difference]: Finished difference Result 486 states and 580 transitions. [2020-09-25 00:42:49,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:42:49,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 00:42:49,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:49,148 INFO L225 Difference]: With dead ends: 486 [2020-09-25 00:42:49,148 INFO L226 Difference]: Without dead ends: 301 [2020-09-25 00:42:49,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:42:49,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-25 00:42:49,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-09-25 00:42:49,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 00:42:49,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 282 transitions. [2020-09-25 00:42:49,340 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 282 transitions. Word has length 153 [2020-09-25 00:42:49,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:49,341 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 282 transitions. [2020-09-25 00:42:49,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:42:49,341 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 282 transitions. [2020-09-25 00:42:49,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 00:42:49,345 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:49,346 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] [2020-09-25 00:42:49,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:42:49,346 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:49,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:49,347 INFO L82 PathProgramCache]: Analyzing trace with hash -197104449, now seen corresponding path program 1 times [2020-09-25 00:42:49,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:49,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12843725] [2020-09-25 00:42:49,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:49,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:49,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:51,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:54,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:54,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 00:42:54,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:42:54,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 00:42:54,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 00:42:54,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:42:54,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:42:54,739 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:42:54,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:42:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:54,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:54,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:54,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:42:54,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:54,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 00:42:54,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:54,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:54,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:54,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:54,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:54,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:42:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:54,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:54,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:54,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:54,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:54,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:42:54,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:54,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:54,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:54,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:54,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:54,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:42:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:54,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:54,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:54,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:54,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:54,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:54,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:54,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:54,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:54,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:54,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:54,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:42:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:54,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:54,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:54,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:54,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:54,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:42:54,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:54,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:54,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:54,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:54,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:54,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:42:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:54,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:54,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:54,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:42:54,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:54,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:54,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:54,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:54,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:42:54,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:54,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:54,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 00:42:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:54,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:54,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:54,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:54,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:54,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:42:54,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:54,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:54,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:54,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:54,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:54,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 00:42:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:54,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:54,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:54,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:54,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:54,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:54,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:54,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:54,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:54,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:54,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:54,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 00:42:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:54,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:54,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:54,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:42:54,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:42:54,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:42:54,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:54,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:42:54,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:42:54,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:42:54,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:42:54,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:42:54,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12843725] [2020-09-25 00:42:54,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:42:54,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:42:54,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516191306] [2020-09-25 00:42:54,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:42:54,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:42:54,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:42:54,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:42:54,969 INFO L87 Difference]: Start difference. First operand 259 states and 282 transitions. Second operand 4 states. [2020-09-25 00:42:55,634 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:42:56,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:42:56,612 INFO L93 Difference]: Finished difference Result 399 states and 451 transitions. [2020-09-25 00:42:56,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:42:56,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 00:42:56,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:42:56,618 INFO L225 Difference]: With dead ends: 399 [2020-09-25 00:42:56,618 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 00:42:56,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:42:56,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 00:42:56,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2020-09-25 00:42:56,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 00:42:56,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2020-09-25 00:42:56,670 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 154 [2020-09-25 00:42:56,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:42:56,671 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2020-09-25 00:42:56,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:42:56,671 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-09-25 00:42:56,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 00:42:56,673 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:42:56,674 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] [2020-09-25 00:42:56,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:42:56,674 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:42:56,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:42:56,675 INFO L82 PathProgramCache]: Analyzing trace with hash 2051029771, now seen corresponding path program 1 times [2020-09-25 00:42:56,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:42:56,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891061279] [2020-09-25 00:42:56,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:42:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:42:56,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:57,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:42:59,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:42:59,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 00:42:59,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:42:59,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3172 [2020-09-25 00:42:59,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:42:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:42:59,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 00:42:59,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:42:59,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:00,197 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:43:00,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:43:00,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:00,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:00,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:00,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:43:00,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:00,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 00:43:00,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:00,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:00,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:00,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:00,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:00,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:43:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:00,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:00,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:00,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:00,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:00,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:00,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:00,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:00,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:00,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:43:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:00,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:00,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:00,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:00,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:00,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:43:00,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:00,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:00,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:00,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:00,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:00,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:43:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:00,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:00,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:00,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:00,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:00,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:43:00,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:00,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:00,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:00,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:00,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:00,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:43:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:00,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:00,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:00,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:00,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:00,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:43:00,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:00,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:00,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:00,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:00,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:00,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 00:43:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:00,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:00,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:00,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:43:00,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:00,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:00,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 00:43:00,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:00,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:43:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:00,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:00,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:00,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:00,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:00,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:00,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:00,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:00,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:00,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:00,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:43:00,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 00:43:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:00,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:00,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:00,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:00,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:00,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:00,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:00,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:00,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:00,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:00,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:00,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 00:43:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:00,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:00,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:00,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:00,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:00,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:00,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:00,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:00,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:00,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:43:00,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891061279] [2020-09-25 00:43:00,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:43:00,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:43:00,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387484957] [2020-09-25 00:43:00,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:43:00,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:43:00,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:43:00,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:43:00,439 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 5 states. [2020-09-25 00:43:00,926 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:43:01,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:43:01,959 INFO L93 Difference]: Finished difference Result 445 states and 513 transitions. [2020-09-25 00:43:01,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:43:01,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 00:43:01,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:43:01,963 INFO L225 Difference]: With dead ends: 445 [2020-09-25 00:43:01,964 INFO L226 Difference]: Without dead ends: 306 [2020-09-25 00:43:01,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:43:01,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-25 00:43:02,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249. [2020-09-25 00:43:02,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 00:43:02,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 268 transitions. [2020-09-25 00:43:02,023 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 268 transitions. Word has length 167 [2020-09-25 00:43:02,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:43:02,024 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 268 transitions. [2020-09-25 00:43:02,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:43:02,025 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 268 transitions. [2020-09-25 00:43:02,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 00:43:02,032 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:43:02,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:43:02,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:43:02,033 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:43:02,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:43:02,034 INFO L82 PathProgramCache]: Analyzing trace with hash -292228132, now seen corresponding path program 1 times [2020-09-25 00:43:02,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:43:02,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126493166] [2020-09-25 00:43:02,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:43:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:02,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:04,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-09-25 00:43:04,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:04,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2049 [2020-09-25 00:43:04,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:04,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:43:04,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 00:43:04,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-25 00:43:04,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:04,583 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:43:04,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:43:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:04,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:04,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:43:04,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:04,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-25 00:43:04,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:04,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:04,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:04,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 00:43:04,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:04,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:43:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:04,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:04,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:04,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:04,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:04,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:04,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:04,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:04,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:04,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:04,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:43:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:04,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:04,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:04,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:04,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:04,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:04,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:04,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:04,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:04,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:04,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:43:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:04,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:04,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:04,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:04,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:43:04,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:04,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:43:04,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:04,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:43:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:04,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:04,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:04,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:04,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:04,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:04,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:43:04,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:05,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 00:43:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:05,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:05,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:05,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:43:05,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:05,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:43:05,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:05,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:05,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:05,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 00:43:05,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:05,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 00:43:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:05,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:05,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:05,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:43:05,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:05,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:43:05,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:05,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:05,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:05,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:43:05,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:05,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:43:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:05,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:05,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:05,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 00:43:05,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:05,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:05,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:05,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:05,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:05,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:05,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:05,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:43:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:05,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:05,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:05,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:43:05,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:05,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:43:05,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:05,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:05,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:05,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:05,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 00:43:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:05,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:05,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:05,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:05,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:05,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:43:05,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:43:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:43:05,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:05,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 00:43:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:05,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:05,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:05,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:05,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:05,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:43:05,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:05,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:43:05,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:43:05,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:43:05,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:05,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 00:43:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:43:05,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:43:05,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:43:05,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:43:05,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:43:05,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:43:05,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:43:05,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:43:05,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:43:05,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:43:05,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:43:05,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:43:05,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126493166] [2020-09-25 00:43:05,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:43:05,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 00:43:05,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289494476] [2020-09-25 00:43:05,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 00:43:05,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:43:05,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 00:43:05,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:43:05,184 INFO L87 Difference]: Start difference. First operand 249 states and 268 transitions. Second operand 11 states. [2020-09-25 00:43:05,671 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:43:08,084 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:43:08,507 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:43:08,813 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:43:09,091 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:43:09,377 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:43:09,834 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:43:10,135 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:43:10,462 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:43:11,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:43:11,246 INFO L93 Difference]: Finished difference Result 697 states and 868 transitions. [2020-09-25 00:43:11,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 00:43:11,246 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 180 [2020-09-25 00:43:11,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:43:11,254 INFO L225 Difference]: With dead ends: 697 [2020-09-25 00:43:11,254 INFO L226 Difference]: Without dead ends: 558 [2020-09-25 00:43:11,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-09-25 00:43:11,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-09-25 00:43:11,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 385. [2020-09-25 00:43:11,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-09-25 00:43:11,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 428 transitions. [2020-09-25 00:43:11,327 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 428 transitions. Word has length 180 [2020-09-25 00:43:11,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:43:11,327 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 428 transitions. [2020-09-25 00:43:11,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 00:43:11,328 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 428 transitions. [2020-09-25 00:43:11,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 00:43:11,331 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:43:11,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:43:11,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:43:11,331 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:43:11,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:43:11,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1645650045, now seen corresponding path program 1 times [2020-09-25 00:43:11,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:43:11,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703975254] [2020-09-25 00:43:11,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:43:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 00:43:11,398 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 00:43:11,398 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 00:43:11,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:43:11,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:43:11 BoogieIcfgContainer [2020-09-25 00:43:11,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:43:11,433 INFO L168 Benchmark]: Toolchain (without parser) took 32766.73 ms. Allocated memory was 147.3 MB in the beginning and 588.3 MB in the end (delta: 440.9 MB). Free memory was 103.0 MB in the beginning and 302.3 MB in the end (delta: -199.3 MB). Peak memory consumption was 241.6 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:11,434 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 00:43:11,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.60 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 102.4 MB in the beginning and 171.1 MB in the end (delta: -68.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:11,436 INFO L168 Benchmark]: Boogie Preprocessor took 104.46 ms. Allocated memory is still 204.5 MB. Free memory was 171.1 MB in the beginning and 166.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:11,437 INFO L168 Benchmark]: RCFGBuilder took 1287.84 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 166.4 MB in the beginning and 173.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:11,438 INFO L168 Benchmark]: TraceAbstraction took 30640.47 ms. Allocated memory was 236.5 MB in the beginning and 588.3 MB in the end (delta: 351.8 MB). Free memory was 173.5 MB in the beginning and 302.3 MB in the end (delta: -128.9 MB). Peak memory consumption was 222.9 MB. Max. memory is 7.1 GB. [2020-09-25 00:43:11,441 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.60 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 102.4 MB in the beginning and 171.1 MB in the end (delta: -68.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.46 ms. Allocated memory is still 204.5 MB. Free memory was 171.1 MB in the beginning and 166.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1287.84 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 166.4 MB in the beginning and 173.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30640.47 ms. Allocated memory was 236.5 MB in the beginning and 588.3 MB in the end (delta: 351.8 MB). Free memory was 173.5 MB in the beginning and 302.3 MB in the end (delta: -128.9 MB). Peak memory consumption was 222.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L145] int cleanupTimeShifts = 4; [L286] int pumpRunning = 0; [L287] int systemActive = 1; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L224] int retValue_acc ; [L225] int tmp ; [L229] FCALL select_helpers() [L230] FCALL select_features() [L231] CALL, EXPR valid_product() [L273] int retValue_acc ; [L276] retValue_acc = 1 [L277] return (retValue_acc); [L231] RET, EXPR valid_product() [L231] tmp = valid_product() [L233] COND TRUE \read(tmp) [L235] FCALL setup() [L236] CALL runTest() [L215] CALL test() [L474] int splverifierCounter ; [L475] int tmp ; [L476] int tmp___0 ; [L477] int tmp___1 ; [L478] int tmp___2 ; [L481] splverifierCounter = 0 [L483] COND TRUE 1 [L485] COND TRUE splverifierCounter < 4 [L491] tmp = __VERIFIER_nondet_int() [L493] COND TRUE \read(tmp) [L495] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L495] RET waterRise() [L501] tmp___0 = __VERIFIER_nondet_int() [L503] COND FALSE !(\read(tmp___0)) [L511] tmp___2 = __VERIFIER_nondet_int() [L513] COND TRUE \read(tmp___2) [L515] CALL startSystem() [L468] systemActive = 1 [L515] RET startSystem() [L528] CALL timeShift() [L294] COND FALSE !(\read(pumpRunning)) [L301] COND TRUE \read(systemActive) [L303] CALL processEnvironment() [L349] int tmp ; [L352] COND FALSE !(\read(pumpRunning)) [L367] CALL processEnvironment__wrappee__lowWaterSensor() [L323] int tmp ; [L326] COND FALSE !(\read(pumpRunning)) [L341] FCALL processEnvironment__wrappee__base() [L367] RET processEnvironment__wrappee__lowWaterSensor() [L303] RET processEnvironment() [L309] CALL __utac_acc__Specification3_spec__1() [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L913] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L913] RET, EXPR isMethaneLevelCritical() [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L919] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L919] RET, EXPR getWaterLevel() [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L923] CALL, EXPR isPumpRunning() [L401] int retValue_acc ; [L404] retValue_acc = pumpRunning [L405] return (retValue_acc); [L923] RET, EXPR isPumpRunning() [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) [L929] CALL __automaton_fail() [L140] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 625 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 953 SDtfs, 1447 SDslu, 934 SDs, 0 SdLazy, 2303 SolverSat, 498 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=385occurred 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, 307 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.2s InterpolantComputationTime, 839 NumberOfCodeBlocks, 839 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 650 ConstructedInterpolants, 0 QuantifiedInterpolants, 260063 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...