/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_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:35:12,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:35:12,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:35:12,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:35:12,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:35:12,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:35:12,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:35:12,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:35:12,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:35:12,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:35:12,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:35:12,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:35:12,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:35:12,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:35:12,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:35:12,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:35:12,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:35:12,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:35:12,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:35:12,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:35:12,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:35:12,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:35:12,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:35:12,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:35:12,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:35:12,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:35:12,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:35:12,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:35:12,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:35:12,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:35:12,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:35:12,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:35:12,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:35:12,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:35:12,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:35:12,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:35:12,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:35:12,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:35:12,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:35:12,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:35:12,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:35:12,464 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 03:35:12,496 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:35:12,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:35:12,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:35:12,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:35:12,498 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:35:12,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:35:12,499 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:35:12,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:35:12,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:35:12,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:35:12,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:35:12,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:35:12,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:35:12,500 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:35:12,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:35:12,501 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:35:12,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:35:12,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:35:12,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:35:12,501 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:35:12,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:35:12,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:35:12,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:35:12,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:35:12,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:35:12,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:35:12,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:35:12,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:35:12,503 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:35:12,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:35:12,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:35:12,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:35:12,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:35:12,929 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:35:12,930 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:35:12,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-10-27 03:35:13,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22a7fe82e/796facdd5e754badbcd79b4bc9455635/FLAGf40cc4c7e [2020-10-27 03:35:13,703 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:35:13,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-10-27 03:35:13,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22a7fe82e/796facdd5e754badbcd79b4bc9455635/FLAGf40cc4c7e [2020-10-27 03:35:14,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22a7fe82e/796facdd5e754badbcd79b4bc9455635 [2020-10-27 03:35:14,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:35:14,045 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:35:14,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:35:14,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:35:14,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:35:14,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:35:14" (1/1) ... [2020-10-27 03:35:14,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef1d227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:14, skipping insertion in model container [2020-10-27 03:35:14,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:35:14" (1/1) ... [2020-10-27 03:35:14,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:35:14,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:35:14,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:35:14,529 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:35:14,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:35:14,744 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:35:14,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:14 WrapperNode [2020-10-27 03:35:14,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:35:14,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:35:14,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:35:14,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:35:14,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:14" (1/1) ... [2020-10-27 03:35:14,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:14" (1/1) ... [2020-10-27 03:35:14,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:14" (1/1) ... [2020-10-27 03:35:14,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:14" (1/1) ... [2020-10-27 03:35:14,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:14" (1/1) ... [2020-10-27 03:35:14,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:14" (1/1) ... [2020-10-27 03:35:14,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:14" (1/1) ... [2020-10-27 03:35:14,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:35:14,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:35:14,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:35:14,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:35:14,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:35:14,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:35:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:35:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:35:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:35:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:35:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:35:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:35:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:35:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:35:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:35:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:35:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:35:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:35:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:35:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:35:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:35:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-27 03:35:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:35:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:35:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:35:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 03:35:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:35:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:35:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:35:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:35:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:35:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:35:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-27 03:35:14,946 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:35:14,946 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:35:14,946 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:35:14,946 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:35:14,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:35:14,946 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:35:14,947 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:35:14,947 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:35:14,947 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:35:14,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:35:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:35:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:35:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:35:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:35:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:35:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:35:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:35:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:35:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:35:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:35:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:35:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:35:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:35:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:35:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:35:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:35:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:35:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:35:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:35:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:35:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:35:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:35:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:35:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:35:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:35:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:35:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:35:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-27 03:35:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:35:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:35:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:35:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:35:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:35:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:35:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:35:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:35:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:35:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:35:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 03:35:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-27 03:35:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:35:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:35:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:35:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:35:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:35:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:35:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:35:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:35:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:35:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:35:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:35:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:35:16,456 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:35:16,456 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:35:16,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:35:16 BoogieIcfgContainer [2020-10-27 03:35:16,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:35:16,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:35:16,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:35:16,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:35:16,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:35:14" (1/3) ... [2020-10-27 03:35:16,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54868ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:35:16, skipping insertion in model container [2020-10-27 03:35:16,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:14" (2/3) ... [2020-10-27 03:35:16,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54868ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:35:16, skipping insertion in model container [2020-10-27 03:35:16,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:35:16" (3/3) ... [2020-10-27 03:35:16,468 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2020-10-27 03:35:16,480 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:35:16,486 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:35:16,499 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:35:16,527 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:35:16,528 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:35:16,528 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:35:16,528 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:35:16,528 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:35:16,528 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:35:16,528 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:35:16,528 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:35:16,550 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-10-27 03:35:16,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 03:35:16,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:35:16,562 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:35:16,562 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:35:16,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:35:16,569 INFO L82 PathProgramCache]: Analyzing trace with hash -323341837, now seen corresponding path program 1 times [2020-10-27 03:35:16,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:35:16,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629915518] [2020-10-27 03:35:16,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:35:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:17,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:17,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:17,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:20,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:20,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 03:35:20,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:35:20,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3253 [2020-10-27 03:35:20,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:20,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 03:35:20,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:20,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-27 03:35:20,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 03:35:20,983 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:35:20,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:35:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:21,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:21,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:21,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:21,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:21,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-27 03:35:21,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:21,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:21,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:21,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:35:21,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:21,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:35:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:21,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:21,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:21,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:21,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:21,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:35:21,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:21,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:21,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:21,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:21,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:21,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:35:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:21,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:21,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:21,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:21,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:21,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:35:21,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:21,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:21,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:21,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:35:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:21,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:21,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:21,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:21,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:21,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:35:21,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:21,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:21,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:21,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:35:21,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:21,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:35:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:21,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:21,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:21,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:21,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:21,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:35:21,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:21,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:21,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:21,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:21,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:35:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:21,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:21,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:21,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:21,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:21,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:35:21,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:35:21,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:35:21,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:35:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:21,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:21,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:21,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:21,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:21,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 03:35:21,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:21,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:35:21,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:21,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:35:21,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:21,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 03:35:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:21,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:21,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:21,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:21,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:21,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:35:21,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:21,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:21,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:21,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:21,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:35:21,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:35:21,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629915518] [2020-10-27 03:35:21,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:35:21,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:35:21,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458248282] [2020-10-27 03:35:21,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:35:21,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:35:21,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:35:21,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:35:21,361 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 8 states. [2020-10-27 03:35:22,380 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:35:23,969 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:35:25,193 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:35:26,286 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:35:27,142 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:35:28,098 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 03:35:29,088 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 03:35:29,944 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 03:35:30,745 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:35:32,033 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:35:34,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:35:34,986 INFO L93 Difference]: Finished difference Result 470 states and 663 transitions. [2020-10-27 03:35:34,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 03:35:34,989 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-10-27 03:35:34,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:35:35,006 INFO L225 Difference]: With dead ends: 470 [2020-10-27 03:35:35,006 INFO L226 Difference]: Without dead ends: 321 [2020-10-27 03:35:35,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2020-10-27 03:35:35,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-27 03:35:35,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 277. [2020-10-27 03:35:35,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-27 03:35:35,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 352 transitions. [2020-10-27 03:35:35,172 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 352 transitions. Word has length 53 [2020-10-27 03:35:35,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:35:35,172 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 352 transitions. [2020-10-27 03:35:35,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:35:35,173 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 352 transitions. [2020-10-27 03:35:35,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 03:35:35,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:35:35,180 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] [2020-10-27 03:35:35,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:35:35,181 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:35:35,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:35:35,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1106324519, now seen corresponding path program 1 times [2020-10-27 03:35:35,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:35:35,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587231613] [2020-10-27 03:35:35,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:35:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:35,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:35,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:35,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:38,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:40,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:40,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-27 03:35:40,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 03:35:40,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-27 03:35:40,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:35:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 03:35:40,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:35:40,969 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:35:40,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:35:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:41,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:41,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:41,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:41,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:41,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-27 03:35:41,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:41,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:41,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:41,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:35:41,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:41,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:35:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:41,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:41,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:41,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:41,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:41,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:41,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:41,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:41,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:41,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:41,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:41,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:35:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:41,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:41,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:41,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:41,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:41,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:41,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:41,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:41,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:41,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:41,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:41,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:35:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:41,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:41,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:41,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:41,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:41,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:35:41,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:41,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:41,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:41,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:35:41,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:41,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:35:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:41,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:41,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:41,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:41,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:41,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:41,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:41,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:41,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:41,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:41,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:41,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 03:35:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:41,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:41,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:41,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:41,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:41,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:35:41,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:41,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:35:41,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:41,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:35:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:41,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:41,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:41,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:41,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:41,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:41,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:41,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:41,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:41,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:41,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:41,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 03:35:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:41,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:41,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:41,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:41,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:41,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:41,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:41,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:41,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:41,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:41,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:41,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 03:35:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:41,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:41,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:41,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:41,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:41,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:41,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:41,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:41,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:41,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:41,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:41,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 03:35:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:41,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:41,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:41,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:41,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:41,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:41,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:41,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:35:41,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587231613] [2020-10-27 03:35:41,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:35:41,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 03:35:41,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549754214] [2020-10-27 03:35:41,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 03:35:41,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:35:41,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 03:35:41,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 03:35:41,195 INFO L87 Difference]: Start difference. First operand 277 states and 352 transitions. Second operand 5 states. [2020-10-27 03:35:42,105 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:35:43,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:35:43,294 INFO L93 Difference]: Finished difference Result 410 states and 543 transitions. [2020-10-27 03:35:43,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 03:35:43,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2020-10-27 03:35:43,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:35:43,299 INFO L225 Difference]: With dead ends: 410 [2020-10-27 03:35:43,299 INFO L226 Difference]: Without dead ends: 147 [2020-10-27 03:35:43,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:35:43,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-27 03:35:43,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 135. [2020-10-27 03:35:43,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-27 03:35:43,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 155 transitions. [2020-10-27 03:35:43,354 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 155 transitions. Word has length 66 [2020-10-27 03:35:43,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:35:43,355 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 155 transitions. [2020-10-27 03:35:43,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 03:35:43,355 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 155 transitions. [2020-10-27 03:35:43,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-27 03:35:43,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:35:43,358 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] [2020-10-27 03:35:43,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:35:43,358 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:35:43,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:35:43,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1885469965, now seen corresponding path program 1 times [2020-10-27 03:35:43,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:35:43,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863454120] [2020-10-27 03:35:43,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:35:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:43,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:43,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:43,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-27 03:35:43,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:43,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-27 03:35:43,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:43,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:43,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:43,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 03:35:43,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:44,330 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:35:44,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:35:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:44,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:44,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:44,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:44,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:44,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 03:35:44,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:44,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:44,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:44,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:35:44,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:44,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:35:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:44,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:44,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:44,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:44,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:44,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:44,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:44,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:44,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:35:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:44,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:44,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:44,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:44,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:44,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:44,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:44,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:44,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:35:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:44,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:44,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:44,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:44,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:44,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:35:44,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:44,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:44,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:44,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:35:44,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:44,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:35:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:44,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:44,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:44,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:35:44,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:44,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:44,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:44,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:44,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:44,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:35:44,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:44,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 03:35:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:44,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:44,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:44,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:44,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:44,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:35:44,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:44,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:35:44,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:35:44,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:35:44,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:44,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 03:35:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:44,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:44,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:44,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:44,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:44,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:44,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:44,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:44,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:44,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:44,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:44,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-27 03:35:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:44,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:44,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:44,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:44,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:44,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:35:44,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:44,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:44,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:44,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:44,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:44,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 03:35:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:44,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:44,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:44,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:35:44,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:35:44,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:35:44,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:44,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:35:44,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:44,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:35:44,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:35:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:35:44,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863454120] [2020-10-27 03:35:44,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:35:44,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 03:35:44,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99032541] [2020-10-27 03:35:44,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 03:35:44,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:35:44,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 03:35:44,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 03:35:44,549 INFO L87 Difference]: Start difference. First operand 135 states and 155 transitions. Second operand 6 states. [2020-10-27 03:35:45,462 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:35:46,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:35:46,611 INFO L93 Difference]: Finished difference Result 258 states and 310 transitions. [2020-10-27 03:35:46,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 03:35:46,613 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-10-27 03:35:46,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:35:46,616 INFO L225 Difference]: With dead ends: 258 [2020-10-27 03:35:46,616 INFO L226 Difference]: Without dead ends: 147 [2020-10-27 03:35:46,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:35:46,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-27 03:35:46,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 135. [2020-10-27 03:35:46,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-27 03:35:46,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 153 transitions. [2020-10-27 03:35:46,656 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 153 transitions. Word has length 62 [2020-10-27 03:35:46,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:35:46,657 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 153 transitions. [2020-10-27 03:35:46,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 03:35:46,657 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 153 transitions. [2020-10-27 03:35:46,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-27 03:35:46,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:35:46,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:35:46,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:35:46,660 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:35:46,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:35:46,661 INFO L82 PathProgramCache]: Analyzing trace with hash 280212124, now seen corresponding path program 1 times [2020-10-27 03:35:46,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:35:46,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960295669] [2020-10-27 03:35:46,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:35:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:35:46,707 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:35:46,707 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:35:46,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:35:46,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:35:46 BoogieIcfgContainer [2020-10-27 03:35:46,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:35:46,738 INFO L168 Benchmark]: Toolchain (without parser) took 32697.41 ms. Allocated memory was 153.1 MB in the beginning and 348.1 MB in the end (delta: 195.0 MB). Free memory was 107.4 MB in the beginning and 178.2 MB in the end (delta: -70.8 MB). Peak memory consumption was 125.6 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:46,738 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 153.1 MB. Free memory is still 125.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:35:46,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.87 ms. Allocated memory is still 153.1 MB. Free memory was 106.9 MB in the beginning and 127.9 MB in the end (delta: -21.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:46,740 INFO L168 Benchmark]: Boogie Preprocessor took 110.98 ms. Allocated memory is still 153.1 MB. Free memory was 127.9 MB in the beginning and 124.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:46,741 INFO L168 Benchmark]: RCFGBuilder took 1598.77 ms. Allocated memory was 153.1 MB in the beginning and 189.8 MB in the end (delta: 36.7 MB). Free memory was 124.0 MB in the beginning and 115.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 45.9 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:46,742 INFO L168 Benchmark]: TraceAbstraction took 30275.30 ms. Allocated memory was 189.8 MB in the beginning and 348.1 MB in the end (delta: 158.3 MB). Free memory was 115.6 MB in the beginning and 178.2 MB in the end (delta: -62.6 MB). Peak memory consumption was 96.3 MB. Max. memory is 8.0 GB. [2020-10-27 03:35:46,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 153.1 MB. Free memory is still 125.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 697.87 ms. Allocated memory is still 153.1 MB. Free memory was 106.9 MB in the beginning and 127.9 MB in the end (delta: -21.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 110.98 ms. Allocated memory is still 153.1 MB. Free memory was 127.9 MB in the beginning and 124.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1598.77 ms. Allocated memory was 153.1 MB in the beginning and 189.8 MB in the end (delta: 36.7 MB). Free memory was 124.0 MB in the beginning and 115.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 45.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 30275.30 ms. Allocated memory was 189.8 MB in the beginning and 348.1 MB in the end (delta: 158.3 MB). Free memory was 115.6 MB in the beginning and 178.2 MB in the end (delta: -62.6 MB). Peak memory consumption was 96.3 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L584] int pumpRunning = 0; [L585] int systemActive = 1; [L737] int cleanupTimeShifts = 4; [L813] int retValue_acc ; [L814] int tmp ; [L818] FCALL select_helpers() [L819] FCALL select_features() [L820] CALL, EXPR valid_product() [L862] int retValue_acc ; [L865] retValue_acc = 1 [L866] return (retValue_acc); [L820] RET, EXPR valid_product() [L820] tmp = valid_product() [L822] COND TRUE \read(tmp) [L824] FCALL setup() [L825] CALL runTest() [L804] CALL test() [L516] int splverifierCounter ; [L517] int tmp ; [L518] int tmp___0 ; [L519] int tmp___1 ; [L520] int tmp___2 ; [L523] splverifierCounter = 0 [L525] COND TRUE 1 [L527] COND TRUE splverifierCounter < 4 [L533] tmp = __VERIFIER_nondet_int() [L535] COND TRUE \read(tmp) [L537] CALL waterRise() [L433] COND TRUE waterLevel < 2 [L434] waterLevel = waterLevel + 1 [L537] RET waterRise() [L543] tmp___0 = __VERIFIER_nondet_int() [L545] COND FALSE !(\read(tmp___0)) [L553] tmp___2 = __VERIFIER_nondet_int() [L555] COND TRUE \read(tmp___2) [L568] CALL timeShift() [L592] COND FALSE !(\read(pumpRunning)) [L599] COND TRUE \read(systemActive) [L601] CALL processEnvironment() [L621] int tmp ; [L624] COND FALSE !(\read(pumpRunning)) [L639] FCALL processEnvironment__wrappee__base() [L601] RET processEnvironment() [L607] CALL __utac_acc__Specification3_spec__1() [L872] int tmp ; [L873] int tmp___0 ; [L874] int tmp___1 ; [L878] CALL, EXPR isMethaneLevelCritical() [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); [L878] RET, EXPR isMethaneLevelCritical() [L878] tmp = isMethaneLevelCritical() [L880] COND FALSE !(\read(tmp)) [L884] CALL, EXPR getWaterLevel() [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); [L884] RET, EXPR getWaterLevel() [L884] tmp___0 = getWaterLevel() [L886] COND TRUE tmp___0 == 2 [L888] CALL, EXPR isPumpRunning() [L673] int retValue_acc ; [L676] retValue_acc = pumpRunning [L677] return (retValue_acc); [L888] RET, EXPR isPumpRunning() [L888] tmp___1 = isPumpRunning() [L890] COND FALSE !(\read(tmp___1)) [L894] CALL __automaton_fail() [L508] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product17.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 229 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 17.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 273 SDtfs, 719 SDslu, 246 SDs, 0 SdLazy, 1046 SolverSat, 382 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=277occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 68 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 251 NumberOfCodeBlocks, 251 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 57608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...