/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:23:21,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:23:21,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:23:21,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:23:21,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:23:21,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:23:21,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:23:21,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:23:21,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:23:21,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:23:21,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:23:21,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:23:21,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:23:21,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:23:21,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:23:21,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:23:21,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:23:21,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:23:21,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:23:21,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:23:21,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:23:21,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:23:21,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:23:21,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:23:21,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:23:21,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:23:21,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:23:21,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:23:21,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:23:21,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:23:21,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:23:21,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:23:21,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:23:21,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:23:21,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:23:21,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:23:21,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:23:21,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:23:21,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:23:21,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:23:21,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:23:21,699 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 03:23:21,758 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:23:21,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:23:21,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:23:21,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:23:21,763 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:23:21,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:23:21,764 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:23:21,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:23:21,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:23:21,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:23:21,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:23:21,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:23:21,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:23:21,767 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:23:21,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:23:21,767 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:23:21,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:23:21,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:23:21,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:23:21,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:23:21,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:23:21,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:23:21,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:23:21,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:23:21,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:23:21,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:23:21,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:23:21,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:23:21,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:23:21,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:23:22,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:23:22,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:23:22,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:23:22,210 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:23:22,211 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:23:22,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-10-27 03:23:22,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9aa94941f/80099ad9b1e64efe918f75a389c1496d/FLAGb608d267e [2020-10-27 03:23:23,105 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:23:23,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-10-27 03:23:23,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9aa94941f/80099ad9b1e64efe918f75a389c1496d/FLAGb608d267e [2020-10-27 03:23:23,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9aa94941f/80099ad9b1e64efe918f75a389c1496d [2020-10-27 03:23:23,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:23:23,331 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:23:23,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:23:23,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:23:23,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:23:23,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:23:23" (1/1) ... [2020-10-27 03:23:23,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c96fb66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:23, skipping insertion in model container [2020-10-27 03:23:23,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:23:23" (1/1) ... [2020-10-27 03:23:23,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:23:23,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:23:23,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:23:23,738 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:23:23,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:23:23,940 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:23:23,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:23 WrapperNode [2020-10-27 03:23:23,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:23:23,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:23:23,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:23:23,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:23:23,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:23" (1/1) ... [2020-10-27 03:23:23,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:23" (1/1) ... [2020-10-27 03:23:23,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:23" (1/1) ... [2020-10-27 03:23:23,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:23" (1/1) ... [2020-10-27 03:23:24,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:23" (1/1) ... [2020-10-27 03:23:24,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:23" (1/1) ... [2020-10-27 03:23:24,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:23" (1/1) ... [2020-10-27 03:23:24,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:23:24,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:23:24,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:23:24,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:23:24,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:23:24,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:23:24,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:23:24,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:23:24,140 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:23:24,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-27 03:23:24,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:23:24,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:23:24,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:23:24,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:23:24,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:23:24,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:23:24,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:23:24,142 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:23:24,142 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:23:24,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:23:24,143 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:23:24,143 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:23:24,143 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:23:24,143 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 03:23:24,143 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 03:23:24,144 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-27 03:23:24,144 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:23:24,144 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:23:24,144 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:23:24,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:23:24,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:23:24,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:23:24,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 03:23:24,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-27 03:23:24,145 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:23:24,145 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:23:24,146 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:23:24,146 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:23:24,146 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:23:24,146 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:23:24,146 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:23:24,146 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:23:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:23:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:23:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:23:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 03:23:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-27 03:23:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:23:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:23:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:23:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:23:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:23:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:23:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:23:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:23:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:23:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-27 03:23:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:23:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:23:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:23:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:23:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:23:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:23:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:23:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:23:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:23:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:23:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:23:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:23:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:23:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:23:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:23:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:23:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:23:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:23:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:23:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:23:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:23:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:23:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:23:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:23:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:23:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:23:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:23:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:23:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:23:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:23:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 03:23:24,155 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-27 03:23:24,155 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:23:24,155 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:23:24,155 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:23:24,155 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 03:23:24,155 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 03:23:24,156 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 03:23:24,156 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-27 03:23:24,156 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-27 03:23:24,156 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:23:24,156 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:23:24,156 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:23:24,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:23:24,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:23:24,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:23:25,521 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:23:25,522 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:23:25,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:23:25 BoogieIcfgContainer [2020-10-27 03:23:25,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:23:25,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:23:25,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:23:25,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:23:25,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:23:23" (1/3) ... [2020-10-27 03:23:25,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2840ce65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:23:25, skipping insertion in model container [2020-10-27 03:23:25,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:23:23" (2/3) ... [2020-10-27 03:23:25,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2840ce65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:23:25, skipping insertion in model container [2020-10-27 03:23:25,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:23:25" (3/3) ... [2020-10-27 03:23:25,540 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2020-10-27 03:23:25,555 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:23:25,562 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:23:25,579 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:23:25,624 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:23:25,624 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:23:25,625 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:23:25,626 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:23:25,626 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:23:25,626 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:23:25,626 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:23:25,626 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:23:25,656 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2020-10-27 03:23:25,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-27 03:23:25,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:23:25,666 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] [2020-10-27 03:23:25,667 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:23:25,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:23:25,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1391609538, now seen corresponding path program 1 times [2020-10-27 03:23:25,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:23:25,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514170068] [2020-10-27 03:23:25,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:23:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:26,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:26,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:26,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:27,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:28,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-27 03:23:31,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 03:23:31,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-27 03:23:31,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:31,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:31,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 03:23:31,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-27 03:23:31,609 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:23:31,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:23:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:31,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-27 03:23:31,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:23:31,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:23:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:31,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:23:31,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:31,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:31,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:23:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:31,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:23:31,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:31,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:31,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:23:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:31,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:23:31,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:31,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:31,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:23:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:31,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:23:31,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:31,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:31,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:31,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:23:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:31,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:31,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:31,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:31,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:31,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:23:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:31,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:31,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:31,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:31,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:31,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:31,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:31,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:31,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:31,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:31,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:31,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:23:31,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514170068] [2020-10-27 03:23:31,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:23:31,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 03:23:31,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024420615] [2020-10-27 03:23:31,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 03:23:31,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:23:31,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 03:23:31,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 03:23:31,898 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 4 states. [2020-10-27 03:23:32,359 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:23:34,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:23:34,073 INFO L93 Difference]: Finished difference Result 334 states and 437 transitions. [2020-10-27 03:23:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 03:23:34,075 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-27 03:23:34,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:23:34,089 INFO L225 Difference]: With dead ends: 334 [2020-10-27 03:23:34,089 INFO L226 Difference]: Without dead ends: 178 [2020-10-27 03:23:34,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 03:23:34,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-27 03:23:34,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 144. [2020-10-27 03:23:34,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-27 03:23:34,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 170 transitions. [2020-10-27 03:23:34,215 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 170 transitions. Word has length 47 [2020-10-27 03:23:34,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:23:34,216 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 170 transitions. [2020-10-27 03:23:34,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 03:23:34,216 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 170 transitions. [2020-10-27 03:23:34,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 03:23:34,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:23:34,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:23:34,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:23:34,221 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:23:34,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:23:34,222 INFO L82 PathProgramCache]: Analyzing trace with hash 81238302, now seen corresponding path program 1 times [2020-10-27 03:23:34,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:23:34,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539973621] [2020-10-27 03:23:34,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:23:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:34,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:34,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:34,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:34,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:35,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:36,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:39,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:39,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-27 03:23:39,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 03:23:39,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 03:23:39,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:39,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 03:23:39,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:39,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 03:23:39,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:39,757 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:23:39,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:23:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:39,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:39,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:39,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:39,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:39,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-27 03:23:39,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:39,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:39,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:23:39,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:39,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:23:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:39,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:39,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:39,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:39,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:39,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:23:39,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:39,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:39,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:39,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:39,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:39,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:23:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:39,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:39,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:39,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:39,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:39,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:23:39,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:39,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:39,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:23:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:39,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:39,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:39,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:39,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:39,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:23:39,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:39,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:39,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:39,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:39,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:39,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:23:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:39,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:39,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:39,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:39,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:39,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:39,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:39,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:39,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 03:23:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:39,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:39,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:39,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:40,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:40,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:23:40,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:23:40,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 03:23:40,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:40,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:40,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:40,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-27 03:23:40,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:40,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:40,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:40,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:40,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:40,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 03:23:40,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:23:40,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:23:40,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:40,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:40,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:40,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:40,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-27 03:23:40,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:40,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:40,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:40,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 03:23:40,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:40,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:40,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:40,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:40,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:40,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:40,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:40,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:40,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:40,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:40,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:40,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:40,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:23:40,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:40,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:40,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 03:23:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:40,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:40,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:40,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:40,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:40,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:23:40,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:40,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:23:40,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:40,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:40,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:40,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 03:23:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:40,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:40,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:40,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:40,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:40,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:40,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:40,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:23:40,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:40,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:23:40,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:40,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:23:40,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539973621] [2020-10-27 03:23:40,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:23:40,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:23:40,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137552160] [2020-10-27 03:23:40,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:23:40,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:23:40,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:23:40,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:23:40,124 INFO L87 Difference]: Start difference. First operand 144 states and 170 transitions. Second operand 8 states. [2020-10-27 03:23:40,812 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:23:41,952 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:42,797 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:23:44,326 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:44,728 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:45,436 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:23:46,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:23:46,629 INFO L93 Difference]: Finished difference Result 475 states and 635 transitions. [2020-10-27 03:23:46,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 03:23:46,629 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-10-27 03:23:46,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:23:46,637 INFO L225 Difference]: With dead ends: 475 [2020-10-27 03:23:46,637 INFO L226 Difference]: Without dead ends: 332 [2020-10-27 03:23:46,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-27 03:23:46,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-10-27 03:23:46,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 245. [2020-10-27 03:23:46,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-10-27 03:23:46,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 293 transitions. [2020-10-27 03:23:46,739 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 293 transitions. Word has length 66 [2020-10-27 03:23:46,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:23:46,740 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 293 transitions. [2020-10-27 03:23:46,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:23:46,740 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 293 transitions. [2020-10-27 03:23:46,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-27 03:23:46,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:23:46,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:23:46,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:23:46,745 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:23:46,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:23:46,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1667672699, now seen corresponding path program 1 times [2020-10-27 03:23:46,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:23:46,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402150438] [2020-10-27 03:23:46,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:23:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:46,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:47,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:47,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:47,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:48,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:49,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:49,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:49,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:49,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-27 03:23:49,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-27 03:23:49,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3062 [2020-10-27 03:23:49,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:49,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 03:23:49,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:23:49,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-27 03:23:49,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:50,273 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:23:50,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:23:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:50,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:50,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:50,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:50,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-27 03:23:50,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:50,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:50,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:50,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:23:50,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:50,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:23:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:50,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:50,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:50,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:50,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:50,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:50,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:50,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:50,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:50,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:50,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:23:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:50,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:50,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:50,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:50,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:50,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:50,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:50,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:50,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:50,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:50,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:23:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:50,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:50,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:50,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:50,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:23:50,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:50,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:50,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:50,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:50,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:50,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:23:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:50,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:50,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:50,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:50,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:50,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:50,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:50,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:50,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:23:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:50,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:50,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:50,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:50,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:23:50,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:50,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:50,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:50,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:50,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:50,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 03:23:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:50,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:50,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 03:23:50,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 03:23:50,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 03:23:50,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:50,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 03:23:50,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 03:23:50,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 03:23:50,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:50,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:50,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:50,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 03:23:50,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:23:50,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 03:23:50,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:50,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 03:23:50,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 03:23:50,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 03:23:50,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:50,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:50,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:50,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 03:23:50,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:50,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:23:50,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:50,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:23:50,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 03:23:50,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 03:23:50,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:50,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:23:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:50,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:50,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:23:50,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:50,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:23:50,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:23:50,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:50,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-27 03:23:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:50,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:50,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:50,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:50,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:23:50,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:50,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:23:50,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:50,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:50,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:50,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 03:23:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:23:50,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:23:50,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:23:50,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:23:50,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:23:50,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:23:50,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:23:50,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:23:50,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:23:50,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:23:50,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:23:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:23:50,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402150438] [2020-10-27 03:23:50,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:23:50,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 03:23:50,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448558656] [2020-10-27 03:23:50,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 03:23:50,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:23:50,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 03:23:50,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-27 03:23:50,611 INFO L87 Difference]: Start difference. First operand 245 states and 293 transitions. Second operand 10 states. [2020-10-27 03:23:51,266 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:23:53,216 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 206 [2020-10-27 03:23:53,584 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-27 03:23:54,000 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:54,412 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:23:54,809 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:23:55,715 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 205 [2020-10-27 03:23:57,664 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 207 [2020-10-27 03:23:59,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:23:59,873 INFO L93 Difference]: Finished difference Result 859 states and 1198 transitions. [2020-10-27 03:23:59,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 03:23:59,874 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 74 [2020-10-27 03:23:59,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:23:59,882 INFO L225 Difference]: With dead ends: 859 [2020-10-27 03:23:59,882 INFO L226 Difference]: Without dead ends: 638 [2020-10-27 03:23:59,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=192, Invalid=678, Unknown=0, NotChecked=0, Total=870 [2020-10-27 03:23:59,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2020-10-27 03:24:00,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 417. [2020-10-27 03:24:00,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-10-27 03:24:00,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 487 transitions. [2020-10-27 03:24:00,047 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 487 transitions. Word has length 74 [2020-10-27 03:24:00,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:24:00,048 INFO L481 AbstractCegarLoop]: Abstraction has 417 states and 487 transitions. [2020-10-27 03:24:00,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 03:24:00,048 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 487 transitions. [2020-10-27 03:24:00,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-27 03:24:00,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:24:00,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:24:00,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:24:00,052 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:24:00,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:24:00,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1594799391, now seen corresponding path program 1 times [2020-10-27 03:24:00,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:24:00,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312453801] [2020-10-27 03:24:00,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:24:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:00,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:00,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:00,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 03:24:00,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:00,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-10-27 03:24:00,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:24:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-27 03:24:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:24:00,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:00,812 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:24:00,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:24:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:00,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:00,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:00,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:00,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:00,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 03:24:00,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:00,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:00,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:00,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:00,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:00,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:24:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:00,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:00,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:00,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:24:00,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:00,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:24:00,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:00,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:00,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:00,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:00,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:00,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:24:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:00,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:00,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:00,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:24:00,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:00,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:24:00,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:00,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:00,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:00,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:00,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:24:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:00,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:00,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:00,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:00,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:00,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:24:00,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:00,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:00,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:00,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:00,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:24:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:00,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:00,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:00,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:24:00,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:00,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:24:00,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:00,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:00,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:00,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:24:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:00,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:00,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:00,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:00,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:00,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:00,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:00,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:00,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:00,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:00,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:00,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 03:24:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:00,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:00,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:00,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-27 03:24:00,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:00,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 03:24:00,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:24:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-27 03:24:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:24:00,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:00,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:24:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:00,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:00,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:00,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 03:24:00,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:00,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 03:24:00,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:00,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:24:00,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 03:24:00,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:24:00,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:00,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:24:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:00,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:01,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:01,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:24:01,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:01,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 03:24:01,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:01,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:24:01,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 03:24:01,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:24:01,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:01,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:24:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:01,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:01,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:01,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:24:01,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:01,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 03:24:01,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:01,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:24:01,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:01,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 03:24:01,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:01,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:24:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:01,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:01,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:01,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:24:01,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:01,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:24:01,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:01,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:01,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:01,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:01,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:01,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:24:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:01,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:01,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:01,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:01,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:01,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:01,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:01,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:01,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:24:01,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:01,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:01,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 03:24:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:01,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:01,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:01,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:01,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:01,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:24:01,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:24:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:01,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:01,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 03:24:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:01,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:01,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:01,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:01,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:01,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:01,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:24:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:01,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:01,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:24:01,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1312453801] [2020-10-27 03:24:01,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:24:01,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 03:24:01,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611835675] [2020-10-27 03:24:01,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 03:24:01,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:24:01,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 03:24:01,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-27 03:24:01,223 INFO L87 Difference]: Start difference. First operand 417 states and 487 transitions. Second operand 9 states. [2020-10-27 03:24:02,582 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:24:02,974 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:24:03,394 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:24:03,826 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:24:05,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:24:05,707 INFO L93 Difference]: Finished difference Result 927 states and 1163 transitions. [2020-10-27 03:24:05,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 03:24:05,708 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2020-10-27 03:24:05,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:24:05,717 INFO L225 Difference]: With dead ends: 927 [2020-10-27 03:24:05,717 INFO L226 Difference]: Without dead ends: 534 [2020-10-27 03:24:05,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-27 03:24:05,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2020-10-27 03:24:05,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 427. [2020-10-27 03:24:05,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-10-27 03:24:05,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 497 transitions. [2020-10-27 03:24:05,875 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 497 transitions. Word has length 89 [2020-10-27 03:24:05,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:24:05,876 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 497 transitions. [2020-10-27 03:24:05,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 03:24:05,876 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 497 transitions. [2020-10-27 03:24:05,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-27 03:24:05,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:24:05,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:24:05,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:24:05,881 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 03:24:05,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:24:05,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1522412833, now seen corresponding path program 1 times [2020-10-27 03:24:05,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:24:05,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240269919] [2020-10-27 03:24:05,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:24:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:05,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 03:24:06,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-27 03:24:06,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:24:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-27 03:24:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:24:06,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,535 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:24:06,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:24:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:06,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:06,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 03:24:06,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:06,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:06,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:06,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:24:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:06,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:24:06,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:24:06,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:06,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:06,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:06,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:24:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:06,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:24:06,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:24:06,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:06,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:06,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:06,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:24:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:06,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:06,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:06,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:06,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:06,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:06,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:24:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:06,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:24:06,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:24:06,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:06,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:06,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:24:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:06,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:06,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:06,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:06,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:06,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:06,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 03:24:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:06,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-27 03:24:06,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 03:24:06,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:24:06,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 03:24:06,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:24:06,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:24:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:06,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 03:24:06,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 03:24:06,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:24:06,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 03:24:06,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:24:06,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:24:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:06,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:24:06,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 03:24:06,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:24:06,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 03:24:06,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:24:06,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:24:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:06,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:24:06,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 03:24:06,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:24:06,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 03:24:06,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:24:06,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:24:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:06,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:24:06,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:24:06,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 03:24:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:24:06,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:24:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:06,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:06,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:06,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:06,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:24:06,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:06,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 03:24:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:06,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:06,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:06,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:06,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:24:06,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:06,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 03:24:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:06,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:06,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:06,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:06,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:06,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:06,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:06,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:06,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:24:06,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:06,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:06,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:24:06,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240269919] [2020-10-27 03:24:06,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:24:06,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:24:06,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487755184] [2020-10-27 03:24:06,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:24:06,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:24:06,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:24:06,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:24:06,791 INFO L87 Difference]: Start difference. First operand 427 states and 497 transitions. Second operand 8 states. [2020-10-27 03:24:07,849 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:24:08,251 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:24:08,635 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:24:10,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:24:10,407 INFO L93 Difference]: Finished difference Result 945 states and 1204 transitions. [2020-10-27 03:24:10,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 03:24:10,407 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-10-27 03:24:10,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:24:10,412 INFO L225 Difference]: With dead ends: 945 [2020-10-27 03:24:10,413 INFO L226 Difference]: Without dead ends: 542 [2020-10-27 03:24:10,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-27 03:24:10,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-10-27 03:24:10,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 435. [2020-10-27 03:24:10,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2020-10-27 03:24:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 505 transitions. [2020-10-27 03:24:10,540 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 505 transitions. Word has length 89 [2020-10-27 03:24:10,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:24:10,541 INFO L481 AbstractCegarLoop]: Abstraction has 435 states and 505 transitions. [2020-10-27 03:24:10,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:24:10,541 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 505 transitions. [2020-10-27 03:24:10,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-27 03:24:10,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:24:10,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:24:10,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 03:24:10,543 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 03:24:10,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:24:10,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1852178594, now seen corresponding path program 1 times [2020-10-27 03:24:10,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:24:10,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115161350] [2020-10-27 03:24:10,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:24:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:10,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 03:24:11,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-10-27 03:24:11,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:24:11,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:24:11,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 03:24:11,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,516 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:24:11,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:24:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:11,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:11,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 03:24:11,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:24:11,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:11,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:24:11,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:24:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:11,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:24:11,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:11,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:24:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:24:11,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:24:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:11,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:24:11,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:11,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:24:11,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:11,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:24:11,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:24:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:11,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:11,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:24:11,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:24:11,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:11,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:24:11,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:24:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:11,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:24:11,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:11,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:24:11,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:11,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:24:11,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:24:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:11,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:11,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:11,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:24:11,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:24:11,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 03:24:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:11,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-27 03:24:11,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 03:24:11,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:24:11,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 03:24:11,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 03:24:11,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:24:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:11,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 03:24:11,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:24:11,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:24:11,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:11,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 03:24:11,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:24:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:11,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:24:11,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 03:24:11,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:24:11,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:11,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 03:24:11,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:24:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:11,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:24:11,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:24:11,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:24:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:11,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:24:11,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:24:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:11,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:24:11,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:24:11,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:24:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 03:24:11,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:24:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:11,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:11,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:11,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:24:11,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:24:11,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:24:11,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 03:24:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:11,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:11,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:11,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:24:11,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:11,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 03:24:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:24:11,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:24:11,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:24:11,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:24:11,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:24:11,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:24:11,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:24:11,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:24:11,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:24:11,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:24:11,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:24:11,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:24:11,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115161350] [2020-10-27 03:24:11,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:24:11,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 03:24:11,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605867419] [2020-10-27 03:24:11,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 03:24:11,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:24:11,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 03:24:11,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:24:11,849 INFO L87 Difference]: Start difference. First operand 435 states and 505 transitions. Second operand 7 states. [2020-10-27 03:24:12,415 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:24:13,120 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:24:16,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:24:16,792 INFO L93 Difference]: Finished difference Result 1306 states and 1717 transitions. [2020-10-27 03:24:16,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 03:24:16,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-27 03:24:16,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:24:16,800 INFO L225 Difference]: With dead ends: 1306 [2020-10-27 03:24:16,800 INFO L226 Difference]: Without dead ends: 886 [2020-10-27 03:24:16,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-27 03:24:16,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2020-10-27 03:24:16,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 768. [2020-10-27 03:24:16,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-10-27 03:24:16,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 937 transitions. [2020-10-27 03:24:16,984 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 937 transitions. Word has length 89 [2020-10-27 03:24:16,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:24:16,985 INFO L481 AbstractCegarLoop]: Abstraction has 768 states and 937 transitions. [2020-10-27 03:24:16,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 03:24:16,985 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 937 transitions. [2020-10-27 03:24:16,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-27 03:24:16,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:24:16,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:24:16,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 03:24:16,988 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:24:16,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:24:16,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1261112408, now seen corresponding path program 1 times [2020-10-27 03:24:16,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:24:16,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338966521] [2020-10-27 03:24:16,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:24:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:24:17,030 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:24:17,030 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:24:17,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 03:24:17,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:24:17 BoogieIcfgContainer [2020-10-27 03:24:17,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:24:17,063 INFO L168 Benchmark]: Toolchain (without parser) took 53736.12 ms. Allocated memory was 156.2 MB in the beginning and 644.9 MB in the end (delta: 488.6 MB). Free memory was 131.2 MB in the beginning and 262.9 MB in the end (delta: -131.7 MB). Peak memory consumption was 358.5 MB. Max. memory is 8.0 GB. [2020-10-27 03:24:17,063 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory is still 86.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:24:17,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 609.15 ms. Allocated memory is still 156.2 MB. Free memory was 130.5 MB in the beginning and 108.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:24:17,065 INFO L168 Benchmark]: Boogie Preprocessor took 97.38 ms. Allocated memory is still 156.2 MB. Free memory was 108.7 MB in the beginning and 104.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 03:24:17,065 INFO L168 Benchmark]: RCFGBuilder took 1485.24 ms. Allocated memory is still 156.2 MB. Free memory was 104.5 MB in the beginning and 63.6 MB in the end (delta: 40.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. [2020-10-27 03:24:17,066 INFO L168 Benchmark]: TraceAbstraction took 51530.13 ms. Allocated memory was 156.2 MB in the beginning and 644.9 MB in the end (delta: 488.6 MB). Free memory was 63.1 MB in the beginning and 262.9 MB in the end (delta: -199.8 MB). Peak memory consumption was 289.4 MB. Max. memory is 8.0 GB. [2020-10-27 03:24:17,069 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory is still 86.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 609.15 ms. Allocated memory is still 156.2 MB. Free memory was 130.5 MB in the beginning and 108.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 97.38 ms. Allocated memory is still 156.2 MB. Free memory was 108.7 MB in the beginning and 104.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1485.24 ms. Allocated memory is still 156.2 MB. Free memory was 104.5 MB in the beginning and 63.6 MB in the end (delta: 40.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 51530.13 ms. Allocated memory was 156.2 MB in the beginning and 644.9 MB in the end (delta: 488.6 MB). Free memory was 63.1 MB in the beginning and 262.9 MB in the end (delta: -199.8 MB). Peak memory consumption was 289.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L556] int pumpRunning = 0; [L557] int systemActive = 1; [L880] int waterLevel = 1; [L881] int methaneLevelCritical = 0; [L527] int retValue_acc ; [L528] int tmp ; [L532] FCALL select_helpers() [L533] FCALL select_features() [L534] CALL, EXPR valid_product() [L870] int retValue_acc ; [L873] retValue_acc = 1 [L874] return (retValue_acc); [L534] RET, EXPR valid_product() [L534] tmp = valid_product() [L536] COND TRUE \read(tmp) [L538] FCALL setup() [L539] CALL runTest() [L518] CALL test() [L780] int splverifierCounter ; [L781] int tmp ; [L782] int tmp___0 ; [L783] int tmp___1 ; [L784] int tmp___2 ; [L787] splverifierCounter = 0 [L789] COND TRUE 1 [L791] COND TRUE splverifierCounter < 4 [L797] tmp = __VERIFIER_nondet_int() [L799] COND TRUE \read(tmp) [L801] CALL waterRise() [L898] COND TRUE waterLevel < 2 [L899] waterLevel = waterLevel + 1 [L801] RET waterRise() [L807] tmp___0 = __VERIFIER_nondet_int() [L809] COND TRUE \read(tmp___0) [L811] CALL changeMethaneLevel() [L910] COND FALSE !(\read(methaneLevelCritical)) [L913] methaneLevelCritical = 1 [L811] RET changeMethaneLevel() [L817] tmp___2 = __VERIFIER_nondet_int() [L819] COND TRUE \read(tmp___2) [L832] CALL timeShift() [L563] COND FALSE !(\read(pumpRunning)) [L570] COND TRUE \read(systemActive) [L572] CALL processEnvironment() [L644] int tmp ; [L647] COND FALSE !(\read(pumpRunning)) [L662] CALL processEnvironment__wrappee__lowWaterSensor() [L618] int tmp ; [L621] COND FALSE !(\read(pumpRunning)) [L636] CALL processEnvironment__wrappee__highWaterSensor() [L592] int tmp ; [L595] COND TRUE ! pumpRunning [L597] CALL, EXPR isHighWaterLevel() [L741] int retValue_acc ; [L742] int tmp ; [L743] int tmp___0 ; [L747] CALL, EXPR isHighWaterSensorDry() [L960] int retValue_acc ; [L963] COND FALSE !(waterLevel < 2) [L967] retValue_acc = 0 [L968] return (retValue_acc); [L747] RET, EXPR isHighWaterSensorDry() [L747] tmp = isHighWaterSensorDry() [L749] COND FALSE !(\read(tmp)) [L752] tmp___0 = 1 [L754] retValue_acc = tmp___0 [L755] return (retValue_acc); [L597] RET, EXPR isHighWaterLevel() [L597] tmp = isHighWaterLevel() [L599] COND TRUE \read(tmp) [L601] CALL activatePump() [L672] pumpRunning = 1 [L601] RET activatePump() [L636] RET processEnvironment__wrappee__highWaterSensor() [L662] RET processEnvironment__wrappee__lowWaterSensor() [L572] RET processEnvironment() [L578] CALL __utac_acc__Specification1_spec__1() [L46] int tmp ; [L47] int tmp___0 ; [L51] CALL, EXPR isMethaneLevelCritical() [L919] int retValue_acc ; [L922] retValue_acc = methaneLevelCritical [L923] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND TRUE \read(tmp) [L55] CALL, EXPR isPumpRunning() [L696] int retValue_acc ; [L699] retValue_acc = pumpRunning [L700] return (retValue_acc); [L55] RET, EXPR isPumpRunning() [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) [L59] CALL __automaton_fail() [L75] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product53.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 257 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 51.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 31.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 952 SDtfs, 1804 SDslu, 1072 SDs, 0 SdLazy, 5023 SolverSat, 1191 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 168 SyntacticMatches, 4 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 12.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=768occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 674 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.6s InterpolantComputationTime, 547 NumberOfCodeBlocks, 547 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 448 ConstructedInterpolants, 0 QuantifiedInterpolants, 153345 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...