/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_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:36:35,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:36:35,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:36:35,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:36:35,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:36:35,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:36:35,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:36:35,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:36:35,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:36:35,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:36:35,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:36:35,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:36:35,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:36:35,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:36:35,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:36:35,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:36:35,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:36:35,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:36:35,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:36:35,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:36:35,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:36:35,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:36:35,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:36:35,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:36:35,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:36:35,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:36:35,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:36:35,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:36:35,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:36:35,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:36:35,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:36:35,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:36:35,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:36:35,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:36:35,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:36:35,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:36:35,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:36:35,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:36:35,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:36:35,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:36:35,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:36:35,697 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 03:36:35,747 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:36:35,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:36:35,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:36:35,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:36:35,753 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:36:35,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:36:35,754 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:36:35,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:36:35,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:36:35,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:36:35,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:36:35,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:36:35,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:36:35,756 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:36:35,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:36:35,757 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:36:35,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:36:35,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:36:35,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:36:35,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:36:35,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:36:35,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:36:35,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:36:35,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:36:35,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:36:35,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:36:35,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:36:35,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:36:35,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:36:35,768 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:36:36,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:36:36,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:36:36,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:36:36,160 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:36:36,160 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:36:36,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-10-27 03:36:36,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4dc820c5/cd270a8542bd44b1b1eefd0e79eab8b0/FLAG0599280b8 [2020-10-27 03:36:37,073 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:36:37,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-10-27 03:36:37,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4dc820c5/cd270a8542bd44b1b1eefd0e79eab8b0/FLAG0599280b8 [2020-10-27 03:36:37,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4dc820c5/cd270a8542bd44b1b1eefd0e79eab8b0 [2020-10-27 03:36:37,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:36:37,334 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:36:37,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:36:37,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:36:37,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:36:37,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:36:37" (1/1) ... [2020-10-27 03:36:37,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2822bfa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:37, skipping insertion in model container [2020-10-27 03:36:37,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:36:37" (1/1) ... [2020-10-27 03:36:37,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:36:37,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:36:37,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:36:37,792 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:36:37,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:36:37,919 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:36:37,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:37 WrapperNode [2020-10-27 03:36:37,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:36:37,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:36:37,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:36:37,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:36:37,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:37" (1/1) ... [2020-10-27 03:36:37,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:37" (1/1) ... [2020-10-27 03:36:37,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:37" (1/1) ... [2020-10-27 03:36:37,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:37" (1/1) ... [2020-10-27 03:36:37,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:37" (1/1) ... [2020-10-27 03:36:37,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:37" (1/1) ... [2020-10-27 03:36:37,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:37" (1/1) ... [2020-10-27 03:36:38,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:36:38,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:36:38,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:36:38,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:36:38,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:37" (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 03:36:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:36:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:36:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:36:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:36:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:36:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:36:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:36:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:36:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:36:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:36:38,139 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:36:38,139 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:36:38,139 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:36:38,139 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:36:38,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:36:38,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:36:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:36:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:36:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:36:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:36:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:36:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:36:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 03:36:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-27 03:36:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:36:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-27 03:36:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:36:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:36:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:36:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:36:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:36:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 03:36:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 03:36:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:36:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:36:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:36:38,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:36:38,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:36:38,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:36:38,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 03:36:38,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:36:38,143 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:36:38,143 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:36:38,144 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:36:38,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:36:38,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:36:38,144 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:36:38,144 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:36:38,144 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:36:38,144 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:36:38,145 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:36:38,145 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:36:38,145 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:36:38,145 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:36:38,145 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:36:38,145 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:36:38,145 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:36:38,146 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:36:38,146 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:36:38,146 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:36:38,146 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:36:38,146 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:36:38,146 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:36:38,147 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:36:38,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:36:38,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:36:38,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:36:38,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:36:38,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:36:38,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:36:38,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:36:38,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:36:38,148 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:36:38,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:36:38,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:36:38,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:36:38,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:36:38,149 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 03:36:38,149 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:36:38,149 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:36:38,149 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:36:38,149 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 03:36:38,149 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:36:38,150 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:36:38,150 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:36:38,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:36:38,150 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:36:38,150 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 03:36:38,150 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 03:36:38,150 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-27 03:36:38,151 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:36:38,151 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-27 03:36:38,151 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:36:38,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:36:38,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:36:38,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:36:39,487 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:36:39,487 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:36:39,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:36:39 BoogieIcfgContainer [2020-10-27 03:36:39,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:36:39,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:36:39,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:36:39,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:36:39,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:36:37" (1/3) ... [2020-10-27 03:36:39,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9b7c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:36:39, skipping insertion in model container [2020-10-27 03:36:39,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:37" (2/3) ... [2020-10-27 03:36:39,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9b7c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:36:39, skipping insertion in model container [2020-10-27 03:36:39,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:36:39" (3/3) ... [2020-10-27 03:36:39,500 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2020-10-27 03:36:39,513 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:36:39,520 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:36:39,540 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:36:39,570 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:36:39,570 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:36:39,571 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:36:39,571 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:36:39,571 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:36:39,571 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:36:39,571 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:36:39,571 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:36:39,596 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2020-10-27 03:36:39,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 03:36:39,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:39,616 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 03:36:39,617 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 03:36:39,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:39,625 INFO L82 PathProgramCache]: Analyzing trace with hash -329955563, now seen corresponding path program 1 times [2020-10-27 03:36:39,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:39,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907928044] [2020-10-27 03:36:39,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:40,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:40,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:41,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:43,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:43,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 03:36:43,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:36:43,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3279 [2020-10-27 03:36:43,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 03:36:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 03:36:43,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 03:36:43,673 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:36:43,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:36:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:43,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:43,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:43,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:43,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:43,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-27 03:36:43,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:43,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:43,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:43,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:36:43,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:43,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:36:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:43,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:43,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:43,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:43,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:43,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:36:43,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:43,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:43,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:43,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:43,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:36:43,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:36:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:43,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:43,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:43,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:43,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:43,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:36:43,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:43,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:43,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:43,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:43,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:43,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:36:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:43,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:43,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:43,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:43,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:43,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:36:43,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:43,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:43,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:43,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:36:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:43,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:43,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:43,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:43,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:43,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:43,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:43,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:43,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:36:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:43,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:43,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:43,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:43,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:43,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:43,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:43,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:43,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:43,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:43,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 03:36:43,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:36:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:43,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:43,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:43,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:43,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:43,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:43,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:43,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:43,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:43,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:43,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:43,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 03:36:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:43,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:43,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:43,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:43,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:43,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:43,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:43,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:43,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:43,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:43,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:43,955 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 03:36:43,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907928044] [2020-10-27 03:36:43,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:36:43,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 03:36:43,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398102659] [2020-10-27 03:36:43,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 03:36:43,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:36:43,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 03:36:43,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 03:36:43,990 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 4 states. [2020-10-27 03:36:44,461 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:47,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:36:47,646 INFO L93 Difference]: Finished difference Result 486 states and 643 transitions. [2020-10-27 03:36:47,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 03:36:47,648 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-27 03:36:47,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:36:47,664 INFO L225 Difference]: With dead ends: 486 [2020-10-27 03:36:47,665 INFO L226 Difference]: Without dead ends: 318 [2020-10-27 03:36:47,670 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 03:36:47,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-27 03:36:47,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 255. [2020-10-27 03:36:47,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-10-27 03:36:47,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 310 transitions. [2020-10-27 03:36:47,855 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 310 transitions. Word has length 53 [2020-10-27 03:36:47,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:36:47,856 INFO L481 AbstractCegarLoop]: Abstraction has 255 states and 310 transitions. [2020-10-27 03:36:47,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 03:36:47,856 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 310 transitions. [2020-10-27 03:36:47,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-27 03:36:47,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:47,862 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 03:36:47,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:36:47,862 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 03:36:47,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:47,863 INFO L82 PathProgramCache]: Analyzing trace with hash 606688319, now seen corresponding path program 1 times [2020-10-27 03:36:47,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:47,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141687603] [2020-10-27 03:36:47,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:47,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:49,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:49,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 03:36:49,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:49,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1204 [2020-10-27 03:36:49,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:49,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 03:36:49,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:49,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 03:36:49,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:49,586 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:36:49,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:36:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:49,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:49,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:49,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:49,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:49,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-27 03:36:49,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:49,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:49,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:49,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:36:49,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:49,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:36:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:49,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:49,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:49,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:49,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:49,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:49,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:49,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:49,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:49,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:49,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:49,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:36:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:49,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:49,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:49,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:49,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:49,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:49,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:49,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:49,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:36:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:49,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:49,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:49,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:49,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:49,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:49,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:49,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:49,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:49,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:49,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:49,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:36:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:49,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:49,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:49,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:49,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:49,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:49,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:49,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:49,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:49,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:49,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:49,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 03:36:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:49,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:49,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:49,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:36:49,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:49,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:36:49,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:49,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:49,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:49,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:36:49,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:49,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 03:36:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:49,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:49,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:49,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:49,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:49,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:49,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:49,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:49,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:49,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:49,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:49,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 03:36:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:49,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:49,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:49,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:49,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:49,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:36:49,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:49,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:36:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:49,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:49,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:49,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 03:36:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:49,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:49,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:49,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:49,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:49,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:49,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:49,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:49,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:49,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:49,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:49,883 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 03:36:49,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141687603] [2020-10-27 03:36:49,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:36:49,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 03:36:49,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78599183] [2020-10-27 03:36:49,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 03:36:49,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:36:49,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 03:36:49,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-27 03:36:49,887 INFO L87 Difference]: Start difference. First operand 255 states and 310 transitions. Second operand 9 states. [2020-10-27 03:36:50,457 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:52,469 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:36:53,021 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:36:53,468 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:36:53,874 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:54,438 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:36:56,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:36:56,708 INFO L93 Difference]: Finished difference Result 861 states and 1231 transitions. [2020-10-27 03:36:56,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 03:36:56,709 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-10-27 03:36:56,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:36:56,721 INFO L225 Difference]: With dead ends: 861 [2020-10-27 03:36:56,721 INFO L226 Difference]: Without dead ends: 586 [2020-10-27 03:36:56,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-27 03:36:56,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2020-10-27 03:36:56,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 456. [2020-10-27 03:36:56,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2020-10-27 03:36:56,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 569 transitions. [2020-10-27 03:36:56,889 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 569 transitions. Word has length 64 [2020-10-27 03:36:56,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:36:56,890 INFO L481 AbstractCegarLoop]: Abstraction has 456 states and 569 transitions. [2020-10-27 03:36:56,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 03:36:56,890 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 569 transitions. [2020-10-27 03:36:56,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 03:36:56,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:56,896 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 03:36:56,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:36:56,897 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 03:36:56,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:56,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1073209113, now seen corresponding path program 1 times [2020-10-27 03:36:56,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:56,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101128609] [2020-10-27 03:36:56,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:36:56,950 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:36:56,950 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:36:56,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:36:56,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:36:56 BoogieIcfgContainer [2020-10-27 03:36:56,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:36:56,978 INFO L168 Benchmark]: Toolchain (without parser) took 19649.72 ms. Allocated memory was 156.2 MB in the beginning and 390.1 MB in the end (delta: 233.8 MB). Free memory was 132.3 MB in the beginning and 196.1 MB in the end (delta: -63.8 MB). Peak memory consumption was 170.3 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:56,979 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 125.8 MB. Free memory is still 102.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:36:56,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.30 ms. Allocated memory is still 156.2 MB. Free memory was 131.6 MB in the beginning and 110.2 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:56,981 INFO L168 Benchmark]: Boogie Preprocessor took 86.56 ms. Allocated memory is still 156.2 MB. Free memory was 110.2 MB in the beginning and 106.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:56,982 INFO L168 Benchmark]: RCFGBuilder took 1482.16 ms. Allocated memory is still 156.2 MB. Free memory was 106.3 MB in the beginning and 93.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 19.3 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:56,983 INFO L168 Benchmark]: TraceAbstraction took 17484.39 ms. Allocated memory was 156.2 MB in the beginning and 390.1 MB in the end (delta: 233.8 MB). Free memory was 93.3 MB in the beginning and 196.1 MB in the end (delta: -102.8 MB). Peak memory consumption was 131.1 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:56,988 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 125.8 MB. Free memory is still 102.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 581.30 ms. Allocated memory is still 156.2 MB. Free memory was 131.6 MB in the beginning and 110.2 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 86.56 ms. Allocated memory is still 156.2 MB. Free memory was 110.2 MB in the beginning and 106.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1482.16 ms. Allocated memory is still 156.2 MB. Free memory was 106.3 MB in the beginning and 93.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 19.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17484.39 ms. Allocated memory was 156.2 MB in the beginning and 390.1 MB in the end (delta: 233.8 MB). Free memory was 93.3 MB in the beginning and 196.1 MB in the end (delta: -102.8 MB). Peak memory consumption was 131.1 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: [L51] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L631] int pumpRunning = 0; [L632] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L132] int retValue_acc ; [L133] int tmp ; [L137] FCALL select_helpers() [L138] FCALL select_features() [L139] CALL, EXPR valid_product() [L181] int retValue_acc ; [L184] retValue_acc = 1 [L185] return (retValue_acc); [L139] RET, EXPR valid_product() [L139] tmp = valid_product() [L141] COND TRUE \read(tmp) [L143] FCALL setup() [L144] CALL runTest() [L123] CALL test() [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 [L567] COND TRUE 1 [L569] COND TRUE splverifierCounter < 4 [L575] tmp = __VERIFIER_nondet_int() [L577] COND TRUE \read(tmp) [L579] CALL waterRise() [L861] COND TRUE waterLevel < 2 [L862] waterLevel = waterLevel + 1 [L579] RET waterRise() [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___0)) [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___2)) [L601] tmp___1 = __VERIFIER_nondet_int() [L603] COND TRUE \read(tmp___1) [L605] CALL stopSystem() [L830] COND FALSE !(\read(pumpRunning)) [L837] systemActive = 0 [L605] RET stopSystem() [L612] CALL timeShift() [L639] COND FALSE !(\read(pumpRunning)) [L646] COND FALSE !(\read(systemActive)) [L654] CALL __utac_acc__Specification3_spec__1() [L938] int tmp ; [L939] int tmp___0 ; [L940] int tmp___1 ; [L944] CALL, EXPR isMethaneLevelCritical() [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); [L944] RET, EXPR isMethaneLevelCritical() [L944] tmp = isMethaneLevelCritical() [L946] COND FALSE !(\read(tmp)) [L950] CALL, EXPR getWaterLevel() [L914] int retValue_acc ; [L917] retValue_acc = waterLevel [L918] return (retValue_acc); [L950] RET, EXPR getWaterLevel() [L950] tmp___0 = getWaterLevel() [L952] COND TRUE tmp___0 == 2 [L954] CALL, EXPR isPumpRunning() [L763] int retValue_acc ; [L766] retValue_acc = pumpRunning [L767] return (retValue_acc); [L954] RET, EXPR isPumpRunning() [L954] tmp___1 = isPumpRunning() [L956] COND FALSE !(\read(tmp___1)) [L960] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product47.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 253 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 319 SDtfs, 653 SDslu, 290 SDs, 0 SdLazy, 1498 SolverSat, 375 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=456occurred 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, 193 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 39072 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...