/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:35:31,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:35:31,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:35:31,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:35:31,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:35:31,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:35:31,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:35:31,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:35:31,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:35:31,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:35:31,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:35:31,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:35:31,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:35:31,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:35:31,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:35:31,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:35:31,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:35:31,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:35:31,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:35:31,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:35:31,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:35:31,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:35:31,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:35:31,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:35:31,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:35:31,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:35:31,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:35:31,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:35:31,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:35:31,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:35:31,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:35:31,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:35:31,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:35:31,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:35:31,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:35:31,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:35:31,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:35:31,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:35:31,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:35:31,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:35:31,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:35:31,766 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 [2020-10-27 03:35:31,815 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:35:31,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:35:31,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:35:31,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:35:31,821 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:35:31,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:35:31,821 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:35:31,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:35:31,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:35:31,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:35:31,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:35:31,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:35:31,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:35:31,823 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:35:31,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:35:31,824 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:35:31,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:35:31,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:35:31,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:35:31,824 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:35:31,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:35:31,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:35:31,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:35:31,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:35:31,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:35:31,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:35:31,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:35:31,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:35:31,826 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:35:31,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:35:32,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:35:32,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:35:32,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:35:32,302 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:35:32,303 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:35:32,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-10-27 03:35:32,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f6092de9/3ee1116910d5494593eb3b164c17fcec/FLAG40ae9b302 [2020-10-27 03:35:33,075 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:35:33,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-10-27 03:35:33,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f6092de9/3ee1116910d5494593eb3b164c17fcec/FLAG40ae9b302 [2020-10-27 03:35:33,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7f6092de9/3ee1116910d5494593eb3b164c17fcec [2020-10-27 03:35:33,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:35:33,381 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:35:33,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:35:33,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:35:33,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:35:33,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:35:33" (1/1) ... [2020-10-27 03:35:33,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399c8c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:33, skipping insertion in model container [2020-10-27 03:35:33,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:35:33" (1/1) ... [2020-10-27 03:35:33,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:35:33,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:35:33,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:35:33,800 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:35:33,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:35:33,946 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:35:33,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:33 WrapperNode [2020-10-27 03:35:33,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:35:33,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:35:33,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:35:33,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:35:33,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:33" (1/1) ... [2020-10-27 03:35:33,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:33" (1/1) ... [2020-10-27 03:35:33,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:33" (1/1) ... [2020-10-27 03:35:33,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:33" (1/1) ... [2020-10-27 03:35:34,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:33" (1/1) ... [2020-10-27 03:35:34,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:33" (1/1) ... [2020-10-27 03:35:34,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:33" (1/1) ... [2020-10-27 03:35:34,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:35:34,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:35:34,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:35:34,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:35:34,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:35:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:35:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:35:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:35:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:35:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:35:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:35:34,217 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 03:35:34,217 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-27 03:35:34,217 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:35:34,218 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:35:34,218 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:35:34,218 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:35:34,218 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:35:34,218 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:35:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-27 03:35:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 03:35:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-27 03:35:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:35:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:35:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:35:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:35:34,220 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:35:34,220 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:35:34,220 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:35:34,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:35:34,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:35:34,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:35:34,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:35:34,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:35:34,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:35:34,221 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:35:34,221 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:35:34,221 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:35:34,222 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:35:34,222 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:35:34,222 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:35:34,222 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-27 03:35:34,222 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:35:34,222 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:35:34,222 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:35:34,223 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:35:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:35:34,223 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:35:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:35:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:35:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:35:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:35:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:35:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:35:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:35:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:35:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-27 03:35:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:35:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:35:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:35:34,226 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:35:34,226 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:35:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 03:35:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-27 03:35:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:35:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:35:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 03:35:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-27 03:35:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-27 03:35:34,229 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:35:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:35:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:35:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:35:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:35:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:35:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:35:34,230 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:35:34,231 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:35:34,231 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:35:34,231 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:35:34,231 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:35:34,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:35:34,231 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:35:34,231 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:35:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:35:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:35:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:35:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:35:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:35:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:35:34,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:35:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:35:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:35:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:35:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:35:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:35:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:35:34,233 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:35:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:35:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:35:34,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:35:35,636 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:35:35,637 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:35:35,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:35:35 BoogieIcfgContainer [2020-10-27 03:35:35,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:35:35,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:35:35,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:35:35,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:35:35,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:35:33" (1/3) ... [2020-10-27 03:35:35,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32024bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:35:35, skipping insertion in model container [2020-10-27 03:35:35,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:33" (2/3) ... [2020-10-27 03:35:35,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32024bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:35:35, skipping insertion in model container [2020-10-27 03:35:35,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:35:35" (3/3) ... [2020-10-27 03:35:35,654 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2020-10-27 03:35:35,668 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:35:35,675 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:35:35,690 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:35:35,732 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:35:35,733 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:35:35,734 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:35:35,734 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:35:35,734 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:35:35,734 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:35:35,735 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:35:35,735 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:35:35,767 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-10-27 03:35:35,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 03:35:35,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:35:35,789 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] [2020-10-27 03:35:35,791 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:35:35,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:35:35,797 INFO L82 PathProgramCache]: Analyzing trace with hash 104477935, now seen corresponding path program 1 times [2020-10-27 03:35:35,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:35:35,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691120392] [2020-10-27 03:35:35,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:35:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:36,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:36,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:37,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:39,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:39,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 03:35:39,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:35:39,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3261 [2020-10-27 03:35:39,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:39,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 03:35:39,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:39,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 03:35:39,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 03:35:39,868 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:35:39,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:35:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:39,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:40,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:40,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:40,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:40,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 03:35:40,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:40,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:40,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:40,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:35:40,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:40,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:35:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:40,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:40,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:40,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:40,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:40,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:35:40,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:40,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:40,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:40,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:40,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:40,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:35:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:40,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:40,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:40,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:40,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:40,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:35:40,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:40,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:40,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:40,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:35:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:40,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:40,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:40,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:40,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:40,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:35:40,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:35:40,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:40,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:35:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:40,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:40,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:40,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:40,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:40,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:35:40,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:40,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:40,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:35:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:40,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:40,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:40,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:40,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:40,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:35:40,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:40,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:40,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:35:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:40,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:40,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:40,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:40,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:40,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:40,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:40,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:40,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 03:35:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:40,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:40,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:40,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:40,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:40,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:40,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:40,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:40,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:40,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:35:40,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691120392] [2020-10-27 03:35:40,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:35:40,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 03:35:40,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896019467] [2020-10-27 03:35:40,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 03:35:40,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:35:40,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 03:35:40,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 03:35:40,133 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 4 states. [2020-10-27 03:35:40,558 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:35:43,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:35:43,158 INFO L93 Difference]: Finished difference Result 462 states and 614 transitions. [2020-10-27 03:35:43,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 03:35:43,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-27 03:35:43,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:35:43,177 INFO L225 Difference]: With dead ends: 462 [2020-10-27 03:35:43,177 INFO L226 Difference]: Without dead ends: 301 [2020-10-27 03:35:43,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 03:35:43,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-27 03:35:43,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 237. [2020-10-27 03:35:43,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-10-27 03:35:43,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 288 transitions. [2020-10-27 03:35:43,439 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 288 transitions. Word has length 53 [2020-10-27 03:35:43,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:35:43,440 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 288 transitions. [2020-10-27 03:35:43,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 03:35:43,440 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 288 transitions. [2020-10-27 03:35:43,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-27 03:35:43,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:35:43,458 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] [2020-10-27 03:35:43,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:35:43,458 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:35:43,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:35:43,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1280651366, now seen corresponding path program 1 times [2020-10-27 03:35:43,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:35:43,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024630110] [2020-10-27 03:35:43,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:35:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:43,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:43,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:45,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:45,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-27 03:35:45,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:35:45,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2246 [2020-10-27 03:35:45,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 03:35:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 03:35:45,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:46,177 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:35:46,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:35:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:46,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:46,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:46,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:46,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:46,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 03:35:46,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:46,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:46,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:35:46,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:46,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:35:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:46,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:46,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:46,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:46,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:46,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:46,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:46,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:46,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:46,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:46,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:46,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:35:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:46,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:46,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:46,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:46,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:46,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:46,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:46,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:46,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:46,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:46,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:46,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:35:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:46,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:46,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:46,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:46,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:46,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:35:46,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:46,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:46,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:46,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:35:46,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:46,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:35:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:46,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:46,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:46,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:46,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:46,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:46,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:46,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:46,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:46,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:46,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 03:35:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:46,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:46,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:46,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 03:35:46,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:46,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:35:46,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:46,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:46,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:46,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 03:35:46,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:46,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:35:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:46,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:46,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:46,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 03:35:46,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:46,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:46,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:46,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:46,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:46,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:46,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:46,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:35:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:46,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:46,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:46,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:46,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:46,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:46,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:46,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:46,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:46,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:46,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:46,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 03:35:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:46,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:46,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:46,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:46,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:46,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:35:46,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:46,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:46,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:46,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:35:46,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:46,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 03:35:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:46,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:46,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:46,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:46,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:46,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:35:46,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:46,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:35:46,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:46,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:35:46,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:46,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 03:35:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:46,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:46,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:46,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:46,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:46,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:46,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:46,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:46,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:46,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:46,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:46,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:35:46,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024630110] [2020-10-27 03:35:46,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:35:46,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:35:46,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935462885] [2020-10-27 03:35:46,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:35:46,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:35:46,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:35:46,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:35:46,396 INFO L87 Difference]: Start difference. First operand 237 states and 288 transitions. Second operand 8 states. [2020-10-27 03:35:46,883 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:35:49,183 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:35:49,669 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:35:50,090 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:35:50,547 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:35:51,062 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:35:52,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:35:52,520 INFO L93 Difference]: Finished difference Result 808 states and 1121 transitions. [2020-10-27 03:35:52,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 03:35:52,527 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-27 03:35:52,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:35:52,536 INFO L225 Difference]: With dead ends: 808 [2020-10-27 03:35:52,536 INFO L226 Difference]: Without dead ends: 595 [2020-10-27 03:35:52,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-27 03:35:52,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2020-10-27 03:35:52,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 452. [2020-10-27 03:35:52,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2020-10-27 03:35:52,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 570 transitions. [2020-10-27 03:35:52,740 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 570 transitions. Word has length 67 [2020-10-27 03:35:52,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:35:52,740 INFO L481 AbstractCegarLoop]: Abstraction has 452 states and 570 transitions. [2020-10-27 03:35:52,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:35:52,741 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 570 transitions. [2020-10-27 03:35:52,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-27 03:35:52,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:35:52,747 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] [2020-10-27 03:35:52,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:35:52,748 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:35:52,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:35:52,748 INFO L82 PathProgramCache]: Analyzing trace with hash 688808493, now seen corresponding path program 1 times [2020-10-27 03:35:52,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:35:52,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005989080] [2020-10-27 03:35:52,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:35:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:35:52,801 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:35:52,801 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:35:52,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:35:52,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:35:52 BoogieIcfgContainer [2020-10-27 03:35:52,844 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:35:52,848 INFO L168 Benchmark]: Toolchain (without parser) took 19470.00 ms. Allocated memory was 151.0 MB in the beginning and 399.5 MB in the end (delta: 248.5 MB). Free memory was 124.7 MB in the beginning and 148.7 MB in the end (delta: -24.0 MB). Peak memory consumption was 225.9 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:52,849 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 121.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:35:52,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 563.62 ms. Allocated memory is still 151.0 MB. Free memory was 124.2 MB in the beginning and 103.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:52,851 INFO L168 Benchmark]: Boogie Preprocessor took 119.51 ms. Allocated memory is still 151.0 MB. Free memory was 103.2 MB in the beginning and 99.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:52,852 INFO L168 Benchmark]: RCFGBuilder took 1573.45 ms. Allocated memory was 151.0 MB in the beginning and 198.2 MB in the end (delta: 47.2 MB). Free memory was 99.1 MB in the beginning and 176.0 MB in the end (delta: -76.8 MB). Peak memory consumption was 53.6 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:52,854 INFO L168 Benchmark]: TraceAbstraction took 17199.69 ms. Allocated memory was 198.2 MB in the beginning and 399.5 MB in the end (delta: 201.3 MB). Free memory was 175.4 MB in the beginning and 148.7 MB in the end (delta: 26.7 MB). Peak memory consumption was 228.1 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:52,869 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 121.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 563.62 ms. Allocated memory is still 151.0 MB. Free memory was 124.2 MB in the beginning and 103.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 119.51 ms. Allocated memory is still 151.0 MB. Free memory was 103.2 MB in the beginning and 99.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1573.45 ms. Allocated memory was 151.0 MB in the beginning and 198.2 MB in the end (delta: 47.2 MB). Free memory was 99.1 MB in the beginning and 176.0 MB in the end (delta: -76.8 MB). Peak memory consumption was 53.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17199.69 ms. Allocated memory was 198.2 MB in the beginning and 399.5 MB in the end (delta: 201.3 MB). Free memory was 175.4 MB in the beginning and 148.7 MB in the end (delta: 26.7 MB). Peak memory consumption was 228.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L371] int cleanupTimeShifts = 4; [L639] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L836] int waterLevel = 1; [L837] int methaneLevelCritical = 0; [L447] int retValue_acc ; [L448] int tmp ; [L452] FCALL select_helpers() [L453] FCALL select_features() [L454] CALL, EXPR valid_product() [L951] int retValue_acc ; [L954] retValue_acc = 1 [L955] return (retValue_acc); [L454] RET, EXPR valid_product() [L454] tmp = valid_product() [L456] COND TRUE \read(tmp) [L458] FCALL setup() [L459] CALL runTest() [L438] CALL test() [L268] int splverifierCounter ; [L269] int tmp ; [L270] int tmp___0 ; [L271] int tmp___1 ; [L272] int tmp___2 ; [L275] splverifierCounter = 0 [L277] COND TRUE 1 [L279] COND TRUE splverifierCounter < 4 [L285] tmp = __VERIFIER_nondet_int() [L287] COND TRUE \read(tmp) [L289] CALL waterRise() [L854] COND TRUE waterLevel < 2 [L855] waterLevel = waterLevel + 1 [L289] RET waterRise() [L295] tmp___0 = __VERIFIER_nondet_int() [L297] COND FALSE !(\read(tmp___0)) [L305] tmp___2 = __VERIFIER_nondet_int() [L307] COND FALSE !(\read(tmp___2)) [L313] tmp___1 = __VERIFIER_nondet_int() [L315] COND FALSE !(\read(tmp___1)) [L324] CALL timeShift() [L70] COND FALSE !(\read(pumpRunning)) [L77] COND TRUE \read(systemActive) [L79] CALL processEnvironment() [L125] int tmp ; [L128] COND FALSE !(\read(pumpRunning)) [L143] CALL processEnvironment__wrappee__lowWaterSensor() [L99] int tmp ; [L102] COND FALSE !(\read(pumpRunning)) [L117] FCALL processEnvironment__wrappee__base() [L143] RET processEnvironment__wrappee__lowWaterSensor() [L79] RET processEnvironment() [L85] CALL __utac_acc__Specification3_spec__1() [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L344] CALL, EXPR isMethaneLevelCritical() [L875] int retValue_acc ; [L878] retValue_acc = methaneLevelCritical [L879] return (retValue_acc); [L344] RET, EXPR isMethaneLevelCritical() [L344] tmp = isMethaneLevelCritical() [L346] COND FALSE !(\read(tmp)) [L350] CALL, EXPR getWaterLevel() [L907] int retValue_acc ; [L910] retValue_acc = waterLevel [L911] return (retValue_acc); [L350] RET, EXPR getWaterLevel() [L350] tmp___0 = getWaterLevel() [L352] COND TRUE tmp___0 == 2 [L354] CALL, EXPR isPumpRunning() [L177] int retValue_acc ; [L180] retValue_acc = pumpRunning [L181] return (retValue_acc); [L354] RET, EXPR isPumpRunning() [L354] tmp___1 = isPumpRunning() [L356] COND FALSE !(\read(tmp___1)) [L360] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product24.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 249 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 295 SDtfs, 582 SDslu, 250 SDs, 0 SdLazy, 1215 SolverSat, 342 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=452occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 2 MinimizatonAttempts, 207 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 196 NumberOfCodeBlocks, 196 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 37242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...