/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=DEEPEST --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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:09:22,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:09:22,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:09:22,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:09:22,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:09:22,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:09:22,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:09:22,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:09:22,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:09:22,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:09:22,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:09:22,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:09:22,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:09:22,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:09:22,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:09:22,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:09:22,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:09:22,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:09:22,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:09:22,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:09:22,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:09:22,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:09:22,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:09:22,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:09:22,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:09:22,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:09:22,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:09:22,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:09:22,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:09:22,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:09:22,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:09:22,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:09:22,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:09:22,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:09:22,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:09:22,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:09:22,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:09:22,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:09:22,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:09:22,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:09:22,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:09:22,677 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 22:09:22,732 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:09:22,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:09:22,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:09:22,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:09:22,738 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:09:22,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:09:22,738 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:09:22,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:09:22,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:09:22,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:09:22,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:09:22,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:09:22,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:09:22,741 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:09:22,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:09:22,741 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:09:22,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:09:22,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:09:22,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:09:22,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:09:22,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:09:22,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:09:22,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:09:22,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:09:22,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:09:22,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:09:22,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:09:22,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:09:22,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:09:22,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:09:23,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:09:23,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:09:23,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:09:23,223 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:09:23,224 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:09:23,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-10-27 22:09:23,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b31285af5/c7cf4b35cdc5401aab43aac063e6281c/FLAG4521ce310 [2020-10-27 22:09:24,032 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:09:24,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-10-27 22:09:24,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b31285af5/c7cf4b35cdc5401aab43aac063e6281c/FLAG4521ce310 [2020-10-27 22:09:24,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b31285af5/c7cf4b35cdc5401aab43aac063e6281c [2020-10-27 22:09:24,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:09:24,270 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:09:24,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:09:24,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:09:24,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:09:24,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:09:24" (1/1) ... [2020-10-27 22:09:24,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa82089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:24, skipping insertion in model container [2020-10-27 22:09:24,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:09:24" (1/1) ... [2020-10-27 22:09:24,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:09:24,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:09:24,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:09:24,754 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:09:24,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:09:24,925 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:09:24,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:24 WrapperNode [2020-10-27 22:09:24,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:09:24,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:09:24,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:09:24,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:09:24,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:24" (1/1) ... [2020-10-27 22:09:24,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:24" (1/1) ... [2020-10-27 22:09:24,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:24" (1/1) ... [2020-10-27 22:09:24,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:24" (1/1) ... [2020-10-27 22:09:25,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:24" (1/1) ... [2020-10-27 22:09:25,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:24" (1/1) ... [2020-10-27 22:09:25,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:24" (1/1) ... [2020-10-27 22:09:25,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:09:25,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:09:25,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:09:25,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:09:25,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:24" (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 22:09:25,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:09:25,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:09:25,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 22:09:25,122 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:09:25,122 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 22:09:25,123 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 22:09:25,123 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 22:09:25,123 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 22:09:25,123 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 22:09:25,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 22:09:25,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 22:09:25,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 22:09:25,124 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 22:09:25,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 22:09:25,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 22:09:25,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 22:09:25,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 22:09:25,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 22:09:25,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 22:09:25,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 22:09:25,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 22:09:25,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 22:09:25,155 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 22:09:25,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 22:09:25,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:09:25,156 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 22:09:25,156 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 22:09:25,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 22:09:25,156 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 22:09:25,157 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:09:25,157 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 22:09:25,157 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 22:09:25,157 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 22:09:25,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 22:09:25,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 22:09:25,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 22:09:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:09:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:09:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:09:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:09:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:09:25,158 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 22:09:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 22:09:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 22:09:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 22:09:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 22:09:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 22:09:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 22:09:25,159 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 22:09:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 22:09:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 22:09:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 22:09:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 22:09:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 22:09:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 22:09:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:09:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 22:09:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 22:09:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 22:09:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 22:09:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 22:09:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 22:09:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 22:09:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:09:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 22:09:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 22:09:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:09:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 22:09:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 22:09:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:09:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 22:09:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 22:09:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 22:09:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 22:09:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 22:09:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 22:09:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 22:09:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 22:09:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 22:09:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 22:09:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 22:09:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 22:09:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:09:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:09:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:09:25,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:09:26,441 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:09:26,441 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 22:09:26,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:09:26 BoogieIcfgContainer [2020-10-27 22:09:26,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:09:26,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:09:26,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:09:26,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:09:26,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:09:24" (1/3) ... [2020-10-27 22:09:26,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422587b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:09:26, skipping insertion in model container [2020-10-27 22:09:26,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:24" (2/3) ... [2020-10-27 22:09:26,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422587b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:09:26, skipping insertion in model container [2020-10-27 22:09:26,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:09:26" (3/3) ... [2020-10-27 22:09:26,454 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2020-10-27 22:09:26,466 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:09:26,472 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 22:09:26,486 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 22:09:26,515 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:09:26,515 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:09:26,515 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:09:26,515 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:09:26,515 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:09:26,515 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:09:26,516 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:09:26,516 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:09:26,538 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2020-10-27 22:09:26,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 22:09:26,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:09:26,549 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 22:09:26,550 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 22:09:26,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:09:26,556 INFO L82 PathProgramCache]: Analyzing trace with hash -894639054, now seen corresponding path program 1 times [2020-10-27 22:09:26,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:09:26,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616173358] [2020-10-27 22:09:26,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:09:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:27,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:27,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:27,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:29,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:29,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 22:09:29,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:09:29,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2860 [2020-10-27 22:09:29,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:29,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:29,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-27 22:09:29,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:29,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-27 22:09:30,519 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:09:30,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:09:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:30,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:30,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:30,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:30,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:30,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 22:09:30,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:30,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:30,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:30,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:30,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:30,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:09:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:30,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:30,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:30,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:30,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:30,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:30,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:30,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:30,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:30,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:30,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:30,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:09:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:30,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:30,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:30,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:30,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:30,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:30,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:30,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:30,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:30,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:09:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:30,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:30,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:30,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:30,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:30,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:30,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:30,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:30,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:30,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:30,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:30,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:09:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:30,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:30,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:30,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:30,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:30,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:30,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:30,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:30,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:30,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:30,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:30,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 22:09:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:30,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:30,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:30,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:30,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:30,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:09:30,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:30,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:30,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:30,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:30,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:09:30,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 22:09:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:30,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:30,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:30,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:30,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:30,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:09:30,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:30,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:30,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:30,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:30,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:30,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:09:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:30,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:30,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:30,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:30,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:30,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:09:30,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:30,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:30,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:30,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:30,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:30,680 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 22:09:30,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616173358] [2020-10-27 22:09:30,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:09:30,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 22:09:30,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076767269] [2020-10-27 22:09:30,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 22:09:30,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:09:30,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 22:09:30,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:09:30,709 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 3 states. [2020-10-27 22:09:32,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:09:32,318 INFO L93 Difference]: Finished difference Result 236 states and 313 transitions. [2020-10-27 22:09:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 22:09:32,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-27 22:09:32,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:09:32,334 INFO L225 Difference]: With dead ends: 236 [2020-10-27 22:09:32,334 INFO L226 Difference]: Without dead ends: 127 [2020-10-27 22:09:32,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:09:32,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-27 22:09:32,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 97. [2020-10-27 22:09:32,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-27 22:09:32,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 112 transitions. [2020-10-27 22:09:32,456 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 112 transitions. Word has length 53 [2020-10-27 22:09:32,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:09:32,457 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 112 transitions. [2020-10-27 22:09:32,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 22:09:32,457 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 112 transitions. [2020-10-27 22:09:32,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-27 22:09:32,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:09:32,469 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] [2020-10-27 22:09:32,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:09:32,469 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 22:09:32,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:09:32,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1476600878, now seen corresponding path program 1 times [2020-10-27 22:09:32,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:09:32,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1340582595] [2020-10-27 22:09:32,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:09:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:32,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:32,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:32,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:35,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:35,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 22:09:35,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:09:35,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3334 [2020-10-27 22:09:35,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:35,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:35,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 22:09:35,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:09:35,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:36,559 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:09:36,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:09:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:36,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:36,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:36,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:36,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:36,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 22:09:36,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:36,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:36,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:36,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:36,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:36,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:09:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:36,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:36,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:36,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:36,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:36,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:36,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:36,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:36,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:09:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:36,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:36,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:36,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:36,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:36,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:36,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:36,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:36,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:36,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:36,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:36,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:09:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:36,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:36,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:36,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:36,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:36,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:36,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:36,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:36,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:09:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:36,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:36,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:36,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:36,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:36,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:09:36,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:36,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 22:09:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:36,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:36,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:36,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:36,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:36,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:36,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:36,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:36,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:36,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:36,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:36,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 22:09:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:36,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:36,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:36,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:36,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:36,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:36,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:36,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:36,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:36,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 22:09:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:36,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:36,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:36,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:36,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:36,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:36,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:36,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:36,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:36,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:36,658 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 22:09:36,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1340582595] [2020-10-27 22:09:36,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:09:36,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:09:36,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055816810] [2020-10-27 22:09:36,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:09:36,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:09:36,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:09:36,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:09:36,662 INFO L87 Difference]: Start difference. First operand 97 states and 112 transitions. Second operand 4 states. [2020-10-27 22:09:37,693 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:09:38,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:09:38,834 INFO L93 Difference]: Finished difference Result 157 states and 190 transitions. [2020-10-27 22:09:38,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:09:38,836 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-27 22:09:38,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:09:38,839 INFO L225 Difference]: With dead ends: 157 [2020-10-27 22:09:38,839 INFO L226 Difference]: Without dead ends: 111 [2020-10-27 22:09:38,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:09:38,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-27 22:09:38,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 88. [2020-10-27 22:09:38,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-27 22:09:38,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 100 transitions. [2020-10-27 22:09:38,878 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 100 transitions. Word has length 54 [2020-10-27 22:09:38,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:09:38,879 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 100 transitions. [2020-10-27 22:09:38,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:09:38,879 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2020-10-27 22:09:38,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-27 22:09:38,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:09:38,882 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] [2020-10-27 22:09:38,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:09:38,882 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 22:09:38,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:09:38,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1185205112, now seen corresponding path program 1 times [2020-10-27 22:09:38,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:09:38,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945312006] [2020-10-27 22:09:38,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:09:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:38,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:39,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:40,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:40,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 22:09:40,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:09:40,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1883 [2020-10-27 22:09:40,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:40,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:09:40,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:40,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-27 22:09:40,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:09:41,526 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:09:41,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:09:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:41,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:41,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:41,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:41,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:41,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 22:09:41,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:41,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:41,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:41,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:09:41,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:41,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:09:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:41,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:41,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:41,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:41,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:41,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:41,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:41,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:41,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:41,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:09:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:41,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:09:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:41,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:41,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:41,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:41,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:41,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:41,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:41,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:41,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:09:41,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:41,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:09:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:41,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:41,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:41,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:41,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:41,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:09:41,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:41,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:41,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:41,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:09:41,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:41,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:09:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:41,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:41,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:41,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:41,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:41,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:41,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:41,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:41,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:41,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:09:41,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:41,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:09:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:41,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:41,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:41,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:41,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:41,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:41,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:41,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:41,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:41,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:41,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:09:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:41,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:41,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:41,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:41,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:41,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:41,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:41,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:41,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:41,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:41,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:09:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:41,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:41,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:41,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:41,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:41,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:41,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:41,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:41,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:41,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:41,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:41,694 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 22:09:41,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945312006] [2020-10-27 22:09:41,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:09:41,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:09:41,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371194844] [2020-10-27 22:09:41,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:09:41,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:09:41,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:09:41,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:09:41,697 INFO L87 Difference]: Start difference. First operand 88 states and 100 transitions. Second operand 4 states. [2020-10-27 22:09:42,464 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:09:44,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:09:44,355 INFO L93 Difference]: Finished difference Result 247 states and 302 transitions. [2020-10-27 22:09:44,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:09:44,357 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-27 22:09:44,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:09:44,360 INFO L225 Difference]: With dead ends: 247 [2020-10-27 22:09:44,361 INFO L226 Difference]: Without dead ends: 183 [2020-10-27 22:09:44,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:09:44,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-10-27 22:09:44,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 139. [2020-10-27 22:09:44,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-27 22:09:44,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 162 transitions. [2020-10-27 22:09:44,414 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 162 transitions. Word has length 58 [2020-10-27 22:09:44,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:09:44,415 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 162 transitions. [2020-10-27 22:09:44,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:09:44,415 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 162 transitions. [2020-10-27 22:09:44,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-27 22:09:44,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:09:44,417 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] [2020-10-27 22:09:44,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:09:44,418 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 22:09:44,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:09:44,419 INFO L82 PathProgramCache]: Analyzing trace with hash -391273659, now seen corresponding path program 1 times [2020-10-27 22:09:44,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:09:44,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1861812715] [2020-10-27 22:09:44,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:09:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:44,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:45,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:45,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-27 22:09:45,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:45,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1054 [2020-10-27 22:09:45,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:45,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:09:45,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:45,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-27 22:09:45,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:46,273 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:09:46,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:09:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:46,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:46,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:46,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:46,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:46,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 22:09:46,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:46,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:46,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:46,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:09:46,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:46,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:09:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:46,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:46,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:46,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:46,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:46,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:46,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:46,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:46,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:46,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:09:46,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:46,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:09:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:46,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:46,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:46,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:46,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:46,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:46,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:46,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:46,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:46,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:09:46,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:46,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:09:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:46,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:46,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:46,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:46,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:46,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:09:46,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:46,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:46,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:46,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:09:46,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:46,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:09:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:46,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:46,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:46,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:46,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:46,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:46,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:09:46,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:46,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 22:09:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:46,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:46,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:46,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:46,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:46,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:46,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:46,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:46,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:46,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:09:46,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:46,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 22:09:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:46,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:46,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:46,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:46,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:46,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:09:46,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:09:46,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:46,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 22:09:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:46,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:46,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:46,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:46,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:46,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:09:46,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:46,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:09:46,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:46,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:09:46,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:46,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-27 22:09:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:46,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:46,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:46,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:46,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:46,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:46,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:46,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:46,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:46,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:46,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:46,503 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 22:09:46,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1861812715] [2020-10-27 22:09:46,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:09:46,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 22:09:46,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039340539] [2020-10-27 22:09:46,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 22:09:46,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:09:46,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 22:09:46,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 22:09:46,507 INFO L87 Difference]: Start difference. First operand 139 states and 162 transitions. Second operand 7 states. [2020-10-27 22:09:47,386 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:09:49,605 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 22:09:50,467 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:09:51,201 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:09:52,033 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:09:52,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:09:52,599 INFO L93 Difference]: Finished difference Result 382 states and 480 transitions. [2020-10-27 22:09:52,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 22:09:52,602 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2020-10-27 22:09:52,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:09:52,608 INFO L225 Difference]: With dead ends: 382 [2020-10-27 22:09:52,608 INFO L226 Difference]: Without dead ends: 267 [2020-10-27 22:09:52,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:09:52,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-10-27 22:09:52,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 248. [2020-10-27 22:09:52,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-10-27 22:09:52,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 298 transitions. [2020-10-27 22:09:52,691 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 298 transitions. Word has length 61 [2020-10-27 22:09:52,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:09:52,691 INFO L481 AbstractCegarLoop]: Abstraction has 248 states and 298 transitions. [2020-10-27 22:09:52,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 22:09:52,692 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 298 transitions. [2020-10-27 22:09:52,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-27 22:09:52,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:09:52,695 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] [2020-10-27 22:09:52,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:09:52,695 INFO L429 AbstractCegarLoop]: === Iteration 5 === [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 22:09:52,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:09:52,696 INFO L82 PathProgramCache]: Analyzing trace with hash 67416619, now seen corresponding path program 1 times [2020-10-27 22:09:52,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:09:52,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1085334230] [2020-10-27 22:09:52,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:09:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:52,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:52,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:53,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:57,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:57,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-27 22:09:57,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:09:57,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4340 [2020-10-27 22:09:57,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:09:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 22:09:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 22:09:57,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:09:57,796 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:09:57,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:09:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:57,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:57,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:57,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:57,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:57,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 22:09:57,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:57,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:57,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:57,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:09:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:57,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:57,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:57,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:57,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:57,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:09:57,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:57,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:57,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:57,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:57,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:57,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:09:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:57,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:57,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:57,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:57,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:57,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:09:57,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:57,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:57,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:57,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:09:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:57,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:57,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:57,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:57,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:57,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:57,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:57,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:57,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:57,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:57,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:57,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:09:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:57,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:57,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:57,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:57,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:57,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:09:57,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:57,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:57,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:57,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:57,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:57,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 22:09:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:57,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:57,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:57,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:57,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:57,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:09:57,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:57,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:57,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:57,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:09:57,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:57,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 22:09:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:57,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:57,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:57,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:57,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:57,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:09:57,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:57,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:57,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:57,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:09:57,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:57,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:09:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:57,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:57,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:57,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:57,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:57,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:09:57,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:57,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:57,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:57,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:09:57,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:57,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:09:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:57,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:57,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:57,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:57,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:57,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:09:57,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:57,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:57,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:57,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:09:57,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:57,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 22:09:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:57,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:57,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:57,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:57,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:57,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:09:57,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:57,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:09:57,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:57,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:09:57,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:57,950 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 22:09:57,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1085334230] [2020-10-27 22:09:57,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:09:57,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 22:09:57,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38513578] [2020-10-27 22:09:57,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 22:09:57,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:09:57,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 22:09:57,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 22:09:57,953 INFO L87 Difference]: Start difference. First operand 248 states and 298 transitions. Second operand 8 states. [2020-10-27 22:09:59,379 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 22:10:01,355 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:10:02,064 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-27 22:10:02,920 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-27 22:10:03,671 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-27 22:10:04,420 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 22:10:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:10:05,129 INFO L93 Difference]: Finished difference Result 504 states and 623 transitions. [2020-10-27 22:10:05,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 22:10:05,131 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-10-27 22:10:05,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:10:05,137 INFO L225 Difference]: With dead ends: 504 [2020-10-27 22:10:05,137 INFO L226 Difference]: Without dead ends: 371 [2020-10-27 22:10:05,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-27 22:10:05,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-10-27 22:10:05,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 344. [2020-10-27 22:10:05,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-10-27 22:10:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 416 transitions. [2020-10-27 22:10:05,248 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 416 transitions. Word has length 65 [2020-10-27 22:10:05,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:10:05,248 INFO L481 AbstractCegarLoop]: Abstraction has 344 states and 416 transitions. [2020-10-27 22:10:05,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 22:10:05,249 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 416 transitions. [2020-10-27 22:10:05,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-27 22:10:05,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:10:05,251 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] [2020-10-27 22:10:05,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:10:05,252 INFO L429 AbstractCegarLoop]: === Iteration 6 === [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 22:10:05,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:10:05,252 INFO L82 PathProgramCache]: Analyzing trace with hash 387672523, now seen corresponding path program 1 times [2020-10-27 22:10:05,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:10:05,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126153192] [2020-10-27 22:10:05,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:10:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 22:10:05,292 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 22:10:05,292 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 22:10:05,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:10:05,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:10:05 BoogieIcfgContainer [2020-10-27 22:10:05,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 22:10:05,321 INFO L168 Benchmark]: Toolchain (without parser) took 41056.12 ms. Allocated memory was 158.3 MB in the beginning and 443.5 MB in the end (delta: 285.2 MB). Free memory was 131.9 MB in the beginning and 372.7 MB in the end (delta: -240.9 MB). Peak memory consumption was 45.5 MB. Max. memory is 8.0 GB. [2020-10-27 22:10:05,322 INFO L168 Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 158.3 MB. Free memory is still 130.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:10:05,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.99 ms. Allocated memory is still 158.3 MB. Free memory was 131.3 MB in the beginning and 111.3 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-27 22:10:05,323 INFO L168 Benchmark]: Boogie Preprocessor took 107.48 ms. Allocated memory is still 158.3 MB. Free memory was 111.3 MB in the beginning and 107.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 22:10:05,324 INFO L168 Benchmark]: RCFGBuilder took 1408.44 ms. Allocated memory is still 158.3 MB. Free memory was 107.5 MB in the beginning and 59.2 MB in the end (delta: 48.3 MB). Peak memory consumption was 49.1 MB. Max. memory is 8.0 GB. [2020-10-27 22:10:05,325 INFO L168 Benchmark]: TraceAbstraction took 38872.77 ms. Allocated memory was 158.3 MB in the beginning and 443.5 MB in the end (delta: 285.2 MB). Free memory was 58.7 MB in the beginning and 372.7 MB in the end (delta: -314.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:10:05,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 ms. Allocated memory is still 158.3 MB. Free memory is still 130.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 653.99 ms. Allocated memory is still 158.3 MB. Free memory was 131.3 MB in the beginning and 111.3 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 107.48 ms. Allocated memory is still 158.3 MB. Free memory was 111.3 MB in the beginning and 107.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1408.44 ms. Allocated memory is still 158.3 MB. Free memory was 107.5 MB in the beginning and 59.2 MB in the end (delta: 48.3 MB). Peak memory consumption was 49.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 38872.77 ms. Allocated memory was 158.3 MB in the beginning and 443.5 MB in the end (delta: 285.2 MB). Free memory was 58.7 MB in the beginning and 372.7 MB in the end (delta: -314.0 MB). There was no memory consumed. 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: [L121] int pumpRunning = 0; [L122] int systemActive = 1; [L413] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L692] int cleanupTimeShifts = 4; [L788] int waterLevel = 1; [L789] int methaneLevelCritical = 0; [L765] int retValue_acc ; [L766] int tmp ; [L770] FCALL select_helpers() [L771] FCALL select_features() [L772] CALL, EXPR valid_product() [L639] int retValue_acc ; [L642] retValue_acc = 1 [L643] return (retValue_acc); [L772] RET, EXPR valid_product() [L772] tmp = valid_product() [L774] COND TRUE \read(tmp) [L776] FCALL setup() [L777] CALL runTest() [L759] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L806] COND TRUE waterLevel < 2 [L807] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L102] CALL timeShift() [L129] COND FALSE !(\read(pumpRunning)) [L136] COND TRUE \read(systemActive) [L138] FCALL processEnvironment() [L144] CALL __utac_acc__Specification3_spec__1() [L659] int tmp ; [L660] int tmp___0 ; [L661] int tmp___1 ; [L665] CALL, EXPR isMethaneLevelCritical() [L827] int retValue_acc ; [L830] retValue_acc = methaneLevelCritical [L831] return (retValue_acc); [L665] RET, EXPR isMethaneLevelCritical() [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L671] CALL, EXPR getWaterLevel() [L859] int retValue_acc ; [L862] retValue_acc = waterLevel [L863] return (retValue_acc); [L671] RET, EXPR getWaterLevel() [L671] tmp___0 = getWaterLevel() [L673] COND TRUE tmp___0 == 2 [L675] CALL, EXPR isPumpRunning() [L184] int retValue_acc ; [L187] retValue_acc = pumpRunning [L188] return (retValue_acc); [L675] RET, EXPR isPumpRunning() [L675] tmp___1 = isPumpRunning() [L677] COND FALSE !(\read(tmp___1)) [L681] CALL __automaton_fail() [L652] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product03.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 215 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 38.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 19.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 481 SDtfs, 511 SDslu, 412 SDs, 0 SdLazy, 1430 SolverSat, 272 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 12.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=5, 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, 5 MinimizatonAttempts, 143 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.9s InterpolantComputationTime, 356 NumberOfCodeBlocks, 356 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 89124 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...