/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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:38:29,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:38:29,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:38:29,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:38:29,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:38:29,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:38:29,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:38:29,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:38:29,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:38:29,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:38:29,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:38:29,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:38:29,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:38:29,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:38:29,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:38:29,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:38:29,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:38:29,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:38:29,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:38:29,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:38:29,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:38:29,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:38:29,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:38:29,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:38:29,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:38:29,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:38:29,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:38:29,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:38:29,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:38:29,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:38:29,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:38:29,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:38:29,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:38:29,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:38:29,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:38:29,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:38:29,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:38:29,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:38:29,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:38:29,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:38:29,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:38:29,714 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 03:38:29,742 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:38:29,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:38:29,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:38:29,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:38:29,744 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:38:29,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:38:29,745 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:38:29,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:38:29,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:38:29,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:38:29,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:38:29,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:38:29,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:38:29,746 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:38:29,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:38:29,746 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:38:29,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:38:29,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:38:29,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:38:29,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:38:29,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:38:29,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:38:29,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:38:29,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:38:29,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:38:29,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:38:29,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:38:29,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:38:29,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:38:29,750 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:38:30,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:38:30,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:38:30,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:38:30,207 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:38:30,209 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:38:30,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-10-27 03:38:30,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2288997db/9929f3b4d9314ebaa8e2fa8d2b272a2c/FLAG5dcc7949f [2020-10-27 03:38:30,974 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:38:30,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-10-27 03:38:30,994 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2288997db/9929f3b4d9314ebaa8e2fa8d2b272a2c/FLAG5dcc7949f [2020-10-27 03:38:31,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2288997db/9929f3b4d9314ebaa8e2fa8d2b272a2c [2020-10-27 03:38:31,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:38:31,296 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:38:31,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:38:31,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:38:31,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:38:31,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:38:31" (1/1) ... [2020-10-27 03:38:31,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aaa887e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:31, skipping insertion in model container [2020-10-27 03:38:31,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:38:31" (1/1) ... [2020-10-27 03:38:31,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:38:31,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:38:31,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:38:31,690 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:38:31,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:38:31,890 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:38:31,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:31 WrapperNode [2020-10-27 03:38:31,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:38:31,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:38:31,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:38:31,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:38:31,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:31" (1/1) ... [2020-10-27 03:38:31,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:31" (1/1) ... [2020-10-27 03:38:31,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:31" (1/1) ... [2020-10-27 03:38:31,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:31" (1/1) ... [2020-10-27 03:38:31,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:31" (1/1) ... [2020-10-27 03:38:31,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:31" (1/1) ... [2020-10-27 03:38:32,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:31" (1/1) ... [2020-10-27 03:38:32,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:38:32,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:38:32,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:38:32,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:38:32,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:31" (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 03:38:32,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:38:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:38:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:38:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:38:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:38:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:38:32,095 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:38:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:38:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:38:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 03:38:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 03:38:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-27 03:38:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:38:32,097 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-27 03:38:32,097 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:38:32,097 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:38:32,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:38:32,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:38:32,097 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:38:32,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 03:38:32,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-27 03:38:32,098 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 03:38:32,098 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-27 03:38:32,098 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:38:32,098 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:38:32,099 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:38:32,099 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:38:32,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:38:32,099 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:38:32,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:38:32,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 03:38:32,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-27 03:38:32,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:38:32,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:38:32,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:38:32,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:38:32,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:38:32,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:38:32,101 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:38:32,101 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:38:32,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:38:32,101 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:38:32,101 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:38:32,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:38:32,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:38:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:38:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:38:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:38:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:38:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:38:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:38:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:38:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:38:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:38:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:38:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:38:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:38:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:38:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 03:38:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-27 03:38:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:38:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:38:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:38:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:38:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:38:32,105 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 03:38:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-27 03:38:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:38:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:38:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 03:38:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 03:38:32,106 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 03:38:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-27 03:38:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-27 03:38:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:38:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-27 03:38:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:38:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:38:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:38:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:38:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:38:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:38:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:38:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:38:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:38:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:38:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:38:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:38:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:38:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:38:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:38:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:38:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:38:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:38:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:38:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:38:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:38:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:38:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:38:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:38:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:38:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:38:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:38:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:38:33,535 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:38:33,535 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:38:33,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:38:33 BoogieIcfgContainer [2020-10-27 03:38:33,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:38:33,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:38:33,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:38:33,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:38:33,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:38:31" (1/3) ... [2020-10-27 03:38:33,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25edc807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:38:33, skipping insertion in model container [2020-10-27 03:38:33,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:31" (2/3) ... [2020-10-27 03:38:33,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25edc807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:38:33, skipping insertion in model container [2020-10-27 03:38:33,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:38:33" (3/3) ... [2020-10-27 03:38:33,546 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-10-27 03:38:33,558 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:38:33,563 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:38:33,574 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:38:33,603 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:38:33,603 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:38:33,604 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:38:33,604 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:38:33,604 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:38:33,604 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:38:33,604 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:38:33,604 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:38:33,628 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states. [2020-10-27 03:38:33,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 03:38:33,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:38:33,640 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 03:38:33,641 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 03:38:33,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:38:33,647 INFO L82 PathProgramCache]: Analyzing trace with hash -836146869, now seen corresponding path program 1 times [2020-10-27 03:38:33,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:38:33,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017870390] [2020-10-27 03:38:33,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:38:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:34,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:34,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:34,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:37,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:37,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 03:38:37,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:38:37,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3073 [2020-10-27 03:38:37,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:37,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 03:38:37,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:38:37,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 03:38:37,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 03:38:37,806 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:38:37,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:38:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:37,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:37,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:37,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:38:37,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:37,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-27 03:38:37,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:37,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:38:37,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:38:37,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:38:37,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:38:37,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:38:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:37,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:37,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:37,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:38:37,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:37,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:38:37,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:38:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:38:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:38:37,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:38:37,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:38:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:38,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:38,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:38,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:38:38,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:38,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:38:38,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:38,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:38:38,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:38:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:38:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:38:38,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:38:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:38,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:38,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:38,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:38:38,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:38,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:38:38,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:38,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:38:38,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:38:38,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:38:38,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:38:38,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:38:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:38,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:38,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:38,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:38:38,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:38,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:38:38,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:38:38,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:38:38,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:38:38,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 03:38:38,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:38:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:38,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:38,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:38,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:38:38,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:38,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:38:38,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:38,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:38:38,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:38:38,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:38:38,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:38:38,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:38:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:38,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:38,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:38,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:38:38,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:38,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:38:38,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:38,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:38:38,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:38:38,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:38:38,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:38:38,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 03:38:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:38,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:38,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:38,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:38:38,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:38,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:38:38,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:38,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:38:38,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:38:38,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:38:38,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:38:38,077 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 03:38:38,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017870390] [2020-10-27 03:38:38,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:38:38,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 03:38:38,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11574441] [2020-10-27 03:38:38,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 03:38:38,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:38:38,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 03:38:38,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 03:38:38,104 INFO L87 Difference]: Start difference. First operand 213 states. Second operand 4 states. [2020-10-27 03:38:38,950 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:38:44,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:38:44,154 INFO L93 Difference]: Finished difference Result 563 states and 738 transitions. [2020-10-27 03:38:44,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 03:38:44,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-27 03:38:44,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:38:44,175 INFO L225 Difference]: With dead ends: 563 [2020-10-27 03:38:44,175 INFO L226 Difference]: Without dead ends: 371 [2020-10-27 03:38:44,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 03:38:44,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-10-27 03:38:44,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 299. [2020-10-27 03:38:44,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-27 03:38:44,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 364 transitions. [2020-10-27 03:38:44,374 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 364 transitions. Word has length 53 [2020-10-27 03:38:44,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:38:44,374 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 364 transitions. [2020-10-27 03:38:44,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 03:38:44,375 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 364 transitions. [2020-10-27 03:38:44,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-27 03:38:44,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:38:44,381 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] [2020-10-27 03:38:44,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:38:44,381 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 03:38:44,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:38:44,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1407141210, now seen corresponding path program 1 times [2020-10-27 03:38:44,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:38:44,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715813513] [2020-10-27 03:38:44,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:38:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:44,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:45,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:45,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 03:38:45,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:45,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1096 [2020-10-27 03:38:45,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:45,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 03:38:45,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:38:45,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 03:38:45,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:38:46,316 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:38:46,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:38:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:46,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:46,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:46,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:38:46,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:46,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-27 03:38:46,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:46,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:38:46,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:38:46,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:38:46,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:38:46,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:38:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:46,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:46,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:46,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:38:46,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:46,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:38:46,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:46,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:38:46,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:38:46,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:38:46,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:38:46,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:38:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:46,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:46,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:46,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:38:46,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:46,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:38:46,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:46,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:38:46,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:38:46,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:38:46,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:38:46,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:38:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:46,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:46,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:46,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:38:46,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:46,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:38:46,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:46,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:38:46,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:38:46,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:38:46,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:38:46,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:38:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:46,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:46,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:46,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:38:46,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:46,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:38:46,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:46,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:38:46,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:38:46,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:38:46,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:38:46,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 03:38:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:46,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:46,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:46,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:38:46,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:46,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:38:46,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:46,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:38:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:38:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:38:46,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:38:46,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 03:38:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:46,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:46,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:46,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:38:46,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:46,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:38:46,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:38:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:38:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:38:46,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:38:46,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 03:38:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:46,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:46,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:46,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:38:46,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:46,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:38:46,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:38:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:38:46,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:38:46,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:38:46,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 03:38:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:38:46,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:38:46,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:38:46,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:38:46,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:38:46,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 03:38:46,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:38:46,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:38:46,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:38:46,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:38:46,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:38:46,600 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 03:38:46,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715813513] [2020-10-27 03:38:46,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:38:46,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:38:46,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203017929] [2020-10-27 03:38:46,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:38:46,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:38:46,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:38:46,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:38:46,609 INFO L87 Difference]: Start difference. First operand 299 states and 364 transitions. Second operand 8 states. [2020-10-27 03:38:47,495 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:38:50,770 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:38:51,765 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:38:52,547 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:38:53,378 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:38:56,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:38:56,611 INFO L93 Difference]: Finished difference Result 974 states and 1310 transitions. [2020-10-27 03:38:56,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 03:38:56,612 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-27 03:38:56,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:38:56,626 INFO L225 Difference]: With dead ends: 974 [2020-10-27 03:38:56,626 INFO L226 Difference]: Without dead ends: 699 [2020-10-27 03:38:56,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-27 03:38:56,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-10-27 03:38:56,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 584. [2020-10-27 03:38:56,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-10-27 03:38:56,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 730 transitions. [2020-10-27 03:38:56,846 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 730 transitions. Word has length 64 [2020-10-27 03:38:56,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:38:56,847 INFO L481 AbstractCegarLoop]: Abstraction has 584 states and 730 transitions. [2020-10-27 03:38:56,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:38:56,847 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 730 transitions. [2020-10-27 03:38:56,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 03:38:56,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:38:56,853 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] [2020-10-27 03:38:56,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:38:56,853 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 03:38:56,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:38:56,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1087861952, now seen corresponding path program 1 times [2020-10-27 03:38:56,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:38:56,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913747211] [2020-10-27 03:38:56,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:38:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:38:56,901 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:38:56,901 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:38:56,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:38:56,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:38:56 BoogieIcfgContainer [2020-10-27 03:38:56,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:38:56,934 INFO L168 Benchmark]: Toolchain (without parser) took 25644.42 ms. Allocated memory was 151.0 MB in the beginning and 283.1 MB in the end (delta: 132.1 MB). Free memory was 125.0 MB in the beginning and 112.4 MB in the end (delta: 12.7 MB). Peak memory consumption was 145.6 MB. Max. memory is 8.0 GB. [2020-10-27 03:38:56,935 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 124.3 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:38:56,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 592.64 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 101.6 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-10-27 03:38:56,937 INFO L168 Benchmark]: Boogie Preprocessor took 118.07 ms. Allocated memory is still 151.0 MB. Free memory was 101.6 MB in the beginning and 131.7 MB in the end (delta: -30.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-27 03:38:56,938 INFO L168 Benchmark]: RCFGBuilder took 1527.42 ms. Allocated memory is still 151.0 MB. Free memory was 131.7 MB in the beginning and 122.8 MB in the end (delta: 8.8 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:38:56,941 INFO L168 Benchmark]: TraceAbstraction took 23392.58 ms. Allocated memory was 151.0 MB in the beginning and 283.1 MB in the end (delta: 132.1 MB). Free memory was 122.3 MB in the beginning and 112.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 141.5 MB. Max. memory is 8.0 GB. [2020-10-27 03:38:56,955 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 124.3 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 592.64 ms. Allocated memory is still 151.0 MB. Free memory was 124.4 MB in the beginning and 101.6 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 118.07 ms. Allocated memory is still 151.0 MB. Free memory was 101.6 MB in the beginning and 131.7 MB in the end (delta: -30.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1527.42 ms. Allocated memory is still 151.0 MB. Free memory was 131.7 MB in the beginning and 122.8 MB in the end (delta: 8.8 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23392.58 ms. Allocated memory was 151.0 MB in the beginning and 283.1 MB in the end (delta: 132.1 MB). Free memory was 122.3 MB in the beginning and 112.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 141.5 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: [L92] int pumpRunning = 0; [L93] int systemActive = 1; [L429] int waterLevel = 1; [L430] int methaneLevelCritical = 0; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L898] int cleanupTimeShifts = 4; [L971] int retValue_acc ; [L972] int tmp ; [L976] FCALL select_helpers() [L977] FCALL select_features() [L978] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L978] RET, EXPR valid_product() [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L982] FCALL setup() [L983] CALL runTest() [L965] CALL test() [L360] int splverifierCounter ; [L361] int tmp ; [L362] int tmp___0 ; [L363] int tmp___1 ; [L364] int tmp___2 ; [L367] splverifierCounter = 0 [L369] COND TRUE 1 [L371] COND TRUE splverifierCounter < 4 [L377] tmp = __VERIFIER_nondet_int() [L379] COND TRUE \read(tmp) [L381] CALL waterRise() [L447] COND TRUE waterLevel < 2 [L448] waterLevel = waterLevel + 1 [L381] RET waterRise() [L387] tmp___0 = __VERIFIER_nondet_int() [L389] COND FALSE !(\read(tmp___0)) [L397] tmp___2 = __VERIFIER_nondet_int() [L399] COND FALSE !(\read(tmp___2)) [L405] tmp___1 = __VERIFIER_nondet_int() [L407] COND TRUE \read(tmp___1) [L409] CALL stopSystem() [L336] COND FALSE !(\read(pumpRunning)) [L343] systemActive = 0 [L409] RET stopSystem() [L416] CALL timeShift() [L100] COND FALSE !(\read(pumpRunning)) [L107] COND FALSE !(\read(systemActive)) [L115] CALL __utac_acc__Specification3_spec__1() [L1004] int tmp ; [L1005] int tmp___0 ; [L1006] int tmp___1 ; [L1010] CALL, EXPR isMethaneLevelCritical() [L468] int retValue_acc ; [L471] retValue_acc = methaneLevelCritical [L472] return (retValue_acc); [L1010] RET, EXPR isMethaneLevelCritical() [L1010] tmp = isMethaneLevelCritical() [L1012] COND FALSE !(\read(tmp)) [L1016] CALL, EXPR getWaterLevel() [L500] int retValue_acc ; [L503] retValue_acc = waterLevel [L504] return (retValue_acc); [L1016] RET, EXPR getWaterLevel() [L1016] tmp___0 = getWaterLevel() [L1018] COND TRUE tmp___0 == 2 [L1020] CALL, EXPR isPumpRunning() [L250] int retValue_acc ; [L253] retValue_acc = pumpRunning [L254] return (retValue_acc); [L1020] RET, EXPR isPumpRunning() [L1020] tmp___1 = isPumpRunning() [L1022] COND FALSE !(\read(tmp___1)) [L1026] CALL __automaton_fail() [L998] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product64.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 45 procedures, 277 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 16.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 358 SDtfs, 692 SDslu, 270 SDs, 0 SdLazy, 1483 SolverSat, 397 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=584occurred 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: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 187 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 36678 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...