/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:26:18,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:26:18,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:26:18,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:26:18,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:26:18,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:26:18,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:26:18,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:26:18,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:26:18,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:26:18,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:26:18,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:26:18,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:26:18,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:26:18,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:26:18,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:26:18,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:26:18,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:26:18,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:26:18,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:26:18,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:26:18,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:26:18,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:26:18,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:26:18,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:26:18,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:26:18,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:26:18,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:26:18,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:26:18,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:26:18,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:26:18,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:26:18,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:26:18,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:26:18,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:26:18,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:26:18,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:26:18,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:26:18,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:26:18,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:26:18,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:26:18,215 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 [2020-10-29 11:26:18,247 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:26:18,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:26:18,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:26:18,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:26:18,250 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:26:18,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:26:18,250 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:26:18,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:26:18,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:26:18,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:26:18,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:26:18,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:26:18,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:26:18,251 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:26:18,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:26:18,252 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:26:18,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:26:18,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:26:18,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:26:18,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:26:18,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:26:18,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:26:18,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:26:18,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:26:18,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:26:18,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:26:18,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:26:18,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:26:18,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:26:18,255 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:26:18,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:26:18,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:26:18,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:26:18,661 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:26:18,662 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:26:18,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-10-29 11:26:18,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8516c673e/6bc4c2f1b1004fa194a747053802d7a6/FLAGd2067519a [2020-10-29 11:26:19,413 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:26:19,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-10-29 11:26:19,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8516c673e/6bc4c2f1b1004fa194a747053802d7a6/FLAGd2067519a [2020-10-29 11:26:19,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8516c673e/6bc4c2f1b1004fa194a747053802d7a6 [2020-10-29 11:26:19,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:26:19,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:26:19,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:26:19,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:26:19,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:26:19,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:26:19" (1/1) ... [2020-10-29 11:26:19,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69bccf22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:19, skipping insertion in model container [2020-10-29 11:26:19,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:26:19" (1/1) ... [2020-10-29 11:26:19,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:26:19,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:26:20,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:26:20,143 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:26:20,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:26:20,355 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:26:20,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:20 WrapperNode [2020-10-29 11:26:20,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:26:20,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:26:20,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:26:20,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:26:20,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:20" (1/1) ... [2020-10-29 11:26:20,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:20" (1/1) ... [2020-10-29 11:26:20,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:20" (1/1) ... [2020-10-29 11:26:20,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:20" (1/1) ... [2020-10-29 11:26:20,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:20" (1/1) ... [2020-10-29 11:26:20,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:20" (1/1) ... [2020-10-29 11:26:20,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:20" (1/1) ... [2020-10-29 11:26:20,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:26:20,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:26:20,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:26:20,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:26:20,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:20" (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 [2020-10-29 11:26:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:26:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:26:20,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:26:20,588 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:26:20,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:26:20,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:26:20,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:26:20,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:26:20,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:26:20,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:26:20,591 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:26:20,591 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:26:20,591 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-29 11:26:20,592 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-29 11:26:20,592 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-29 11:26:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:26:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:26:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:26:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:26:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:26:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:26:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-29 11:26:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-29 11:26:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-29 11:26:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-29 11:26:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:26:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:26:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:26:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:26:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-29 11:26:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:26:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:26:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:26:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:26:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:26:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:26:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:26:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:26:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:26:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:26:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:26:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:26:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-29 11:26:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-29 11:26:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:26:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:26:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:26:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:26:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:26:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:26:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:26:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:26:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:26:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:26:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:26:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:26:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:26:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:26:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:26:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:26:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:26:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:26:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:26:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:26:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:26:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:26:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:26:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-29 11:26:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-29 11:26:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:26:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:26:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:26:20,607 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:26:20,607 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:26:20,607 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:26:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-29 11:26:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-29 11:26:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:26:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:26:20,608 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:26:20,609 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:26:20,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-29 11:26:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:26:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-29 11:26:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-29 11:26:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-29 11:26:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-29 11:26:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-29 11:26:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:26:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:26:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:26:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:26:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:26:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:26:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:26:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:26:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:26:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:26:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:26:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:26:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:26:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:26:24,182 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:26:24,183 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:26:24,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:26:24 BoogieIcfgContainer [2020-10-29 11:26:24,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:26:24,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:26:24,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:26:24,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:26:24,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:26:19" (1/3) ... [2020-10-29 11:26:24,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6023fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:26:24, skipping insertion in model container [2020-10-29 11:26:24,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:26:20" (2/3) ... [2020-10-29 11:26:24,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6023fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:26:24, skipping insertion in model container [2020-10-29 11:26:24,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:26:24" (3/3) ... [2020-10-29 11:26:24,195 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-10-29 11:26:24,207 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:26:24,213 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:26:24,227 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:26:24,255 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:26:24,255 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:26:24,255 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:26:24,256 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:26:24,256 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:26:24,256 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:26:24,256 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:26:24,256 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:26:24,279 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states. [2020-10-29 11:26:24,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-29 11:26:24,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:26:24,291 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] [2020-10-29 11:26:24,292 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]=== [2020-10-29 11:26:24,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:26:24,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1423878793, now seen corresponding path program 1 times [2020-10-29 11:26:24,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:26:24,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643113043] [2020-10-29 11:26:24,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:26:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:24,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:24,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:25,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:26,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:27,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:29,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:29,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-29 11:26:29,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 11:26:29,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 11:26:29,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:29,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:29,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 11:26:29,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:29,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:26:29,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 11:26:30,391 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:26:30,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:26:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:30,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:30,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:30,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:30,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:30,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 11:26:30,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:30,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:30,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:30,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:30,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:26:30,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:30,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:26:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:30,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:30,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:30,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:30,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:30,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:30,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:30,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:30,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:30,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:30,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:30,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:30,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:26:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:30,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:30,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:30,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:30,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:30,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:30,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:30,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:30,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:30,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:30,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:30,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:30,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:26:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:30,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:30,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:30,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:30,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:30,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:30,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:30,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:30,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:30,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:30,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:30,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:30,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:26:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:30,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:30,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:30,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:30,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:30,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:30,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:30,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:30,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:30,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:30,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:30,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:30,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:26:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:30,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:30,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:30,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:30,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:30,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:30,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:30,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:30,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:30,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:30,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:30,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:30,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:26:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:30,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:30,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:30,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:30,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:30,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:30,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:30,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:30,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:30,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:30,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:30,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:30,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:26:30,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643113043] [2020-10-29 11:26:30,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:26:30,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:26:30,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478416510] [2020-10-29 11:26:30,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:26:30,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:26:30,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:26:30,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:26:30,646 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 4 states. [2020-10-29 11:26:31,525 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:26:34,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:26:34,911 INFO L93 Difference]: Finished difference Result 520 states and 686 transitions. [2020-10-29 11:26:34,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:26:34,913 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-29 11:26:34,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:26:34,938 INFO L225 Difference]: With dead ends: 520 [2020-10-29 11:26:34,938 INFO L226 Difference]: Without dead ends: 341 [2020-10-29 11:26:34,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:26:34,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-10-29 11:26:35,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 273. [2020-10-29 11:26:35,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-10-29 11:26:35,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 332 transitions. [2020-10-29 11:26:35,122 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 332 transitions. Word has length 47 [2020-10-29 11:26:35,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:26:35,122 INFO L481 AbstractCegarLoop]: Abstraction has 273 states and 332 transitions. [2020-10-29 11:26:35,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:26:35,123 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 332 transitions. [2020-10-29 11:26:35,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-29 11:26:35,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:26:35,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:26:35,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:26:35,128 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]=== [2020-10-29 11:26:35,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:26:35,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1718412311, now seen corresponding path program 1 times [2020-10-29 11:26:35,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:26:35,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105409802] [2020-10-29 11:26:35,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:26:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:35,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:35,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:35,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:37,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:39,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:39,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-29 11:26:39,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:26:39,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4461 [2020-10-29 11:26:39,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:39,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:39,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 11:26:39,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:39,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 11:26:39,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:40,060 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:26:40,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:26:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:40,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:40,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:40,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:40,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:40,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-29 11:26:40,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:40,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:26:40,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:40,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:26:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:40,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:40,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:40,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:40,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:40,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:40,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:40,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:40,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:40,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:26:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:40,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:40,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:40,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:40,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:40,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:40,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:40,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:40,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:40,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:40,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:40,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:40,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:26:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:40,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:40,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:40,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:40,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:40,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:40,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:40,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:40,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:40,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:40,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:40,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:40,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:26:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:40,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:40,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:40,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:40,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:40,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:40,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:40,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:40,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:40,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:40,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:40,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:40,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 11:26:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:40,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:40,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:40,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:26:40,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:40,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:40,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:40,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:40,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:40,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:40,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:26:40,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:40,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 11:26:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:40,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:40,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:40,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:40,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:40,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:26:40,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:40,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:40,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:40,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 11:26:40,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 11:26:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:40,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:40,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:40,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:40,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:40,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:40,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:40,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:40,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:40,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:40,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:26:40,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105409802] [2020-10-29 11:26:40,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:26:40,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:26:40,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065623235] [2020-10-29 11:26:40,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:26:40,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:26:40,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:26:40,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:26:40,347 INFO L87 Difference]: Start difference. First operand 273 states and 332 transitions. Second operand 8 states. [2020-10-29 11:26:41,019 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:26:42,187 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:43,160 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:26:43,556 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:44,005 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:26:44,763 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:46,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:26:46,802 INFO L93 Difference]: Finished difference Result 926 states and 1236 transitions. [2020-10-29 11:26:46,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 11:26:46,803 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-10-29 11:26:46,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:26:46,811 INFO L225 Difference]: With dead ends: 926 [2020-10-29 11:26:46,811 INFO L226 Difference]: Without dead ends: 633 [2020-10-29 11:26:46,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-29 11:26:46,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2020-10-29 11:26:46,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 488. [2020-10-29 11:26:46,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-10-29 11:26:46,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 597 transitions. [2020-10-29 11:26:46,978 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 597 transitions. Word has length 58 [2020-10-29 11:26:46,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:26:46,979 INFO L481 AbstractCegarLoop]: Abstraction has 488 states and 597 transitions. [2020-10-29 11:26:46,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:26:46,979 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 597 transitions. [2020-10-29 11:26:46,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-29 11:26:46,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:26:46,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:26:46,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:26:46,986 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]=== [2020-10-29 11:26:46,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:26:46,986 INFO L82 PathProgramCache]: Analyzing trace with hash -16241005, now seen corresponding path program 1 times [2020-10-29 11:26:46,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:26:46,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272242722] [2020-10-29 11:26:46,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:26:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:47,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:47,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:47,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:48,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:48,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 11:26:48,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:26:48,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1835 [2020-10-29 11:26:48,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:48,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:48,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 11:26:48,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:48,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 11:26:48,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:49,280 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:26:49,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:26:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:49,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-29 11:26:49,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:49,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:26:49,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:49,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:26:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:49,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:26:49,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:49,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:49,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:49,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:26:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:49,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:49,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:49,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:49,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:26:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:49,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:49,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:49,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:49,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:49,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:26:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:49,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:26:49,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:26:49,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:49,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:26:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:49,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:49,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:49,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:49,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 11:26:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:26:49,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:26:49,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 11:26:49,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:26:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 11:26:49,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:49,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 11:26:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:49,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:49,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:26:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:49,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:49,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 11:26:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:49,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:49,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:49,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:49,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:49,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:26:49,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:49,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:49,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:49,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:49,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:49,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:26:49,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272242722] [2020-10-29 11:26:49,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:26:49,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 11:26:49,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772778960] [2020-10-29 11:26:49,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 11:26:49,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:26:49,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 11:26:49,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 11:26:49,565 INFO L87 Difference]: Start difference. First operand 488 states and 597 transitions. Second operand 10 states. [2020-10-29 11:26:50,249 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:26:51,567 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:51,979 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:52,416 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:26:53,419 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:26:53,880 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:56,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:26:56,476 INFO L93 Difference]: Finished difference Result 1562 states and 2203 transitions. [2020-10-29 11:26:56,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 11:26:56,477 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-10-29 11:26:56,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:26:56,487 INFO L225 Difference]: With dead ends: 1562 [2020-10-29 11:26:56,487 INFO L226 Difference]: Without dead ends: 1098 [2020-10-29 11:26:56,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=149, Invalid=357, Unknown=0, NotChecked=0, Total=506 [2020-10-29 11:26:56,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2020-10-29 11:26:56,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 804. [2020-10-29 11:26:56,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2020-10-29 11:26:56,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1013 transitions. [2020-10-29 11:26:56,746 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1013 transitions. Word has length 62 [2020-10-29 11:26:56,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:26:56,749 INFO L481 AbstractCegarLoop]: Abstraction has 804 states and 1013 transitions. [2020-10-29 11:26:56,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 11:26:56,749 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1013 transitions. [2020-10-29 11:26:56,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-29 11:26:56,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:26:56,757 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] [2020-10-29 11:26:56,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:26:56,758 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]=== [2020-10-29 11:26:56,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:26:56,759 INFO L82 PathProgramCache]: Analyzing trace with hash -2143853406, now seen corresponding path program 1 times [2020-10-29 11:26:56,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:26:56,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119256566] [2020-10-29 11:26:56,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:26:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:56,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 11:26:57,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-29 11:26:57,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:57,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-29 11:26:57,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:57,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:57,469 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:26:57,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:26:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:57,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:57,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 11:26:57,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:57,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:57,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:57,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:57,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:26:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:57,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:57,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:57,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:57,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:57,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:57,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:26:57,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:26:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:57,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:57,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:26:57,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:57,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:57,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:26:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:57,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:57,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:57,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:57,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:57,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:57,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:26:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:57,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:26:57,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:57,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:57,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:57,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:57,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:57,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:26:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:57,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:57,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:57,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:57,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:57,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:57,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:26:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:57,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 11:26:57,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 11:26:57,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:57,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 11:26:57,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:57,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:57,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:26:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:57,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 11:26:57,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 11:26:57,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 11:26:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:57,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:57,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:26:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:57,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 11:26:57,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 11:26:57,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 11:26:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:57,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:57,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:26:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:57,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:26:57,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 11:26:57,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:26:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 11:26:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:57,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:57,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:26:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:57,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:26:57,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 11:26:57,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 11:26:57,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:26:57,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:26:57,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:57,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:26:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:57,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:57,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:57,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:57,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:57,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:57,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:57,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 11:26:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:57,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:57,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:57,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:57,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:57,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:57,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:57,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 11:26:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:26:57,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:26:57,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:26:57,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:26:57,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:26:57,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:26:57,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:26:57,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:26:57,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:26:57,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:26:57,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:26:57,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:26:57,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:26:57,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119256566] [2020-10-29 11:26:57,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:26:57,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:26:57,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136339657] [2020-10-29 11:26:57,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:26:57,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:26:57,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:26:57,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:26:57,783 INFO L87 Difference]: Start difference. First operand 804 states and 1013 transitions. Second operand 8 states. [2020-10-29 11:26:59,181 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:26:59,588 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:26:59,987 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:27:01,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:27:01,832 INFO L93 Difference]: Finished difference Result 1847 states and 2587 transitions. [2020-10-29 11:27:01,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 11:27:01,833 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 90 [2020-10-29 11:27:01,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:27:01,844 INFO L225 Difference]: With dead ends: 1847 [2020-10-29 11:27:01,844 INFO L226 Difference]: Without dead ends: 1067 [2020-10-29 11:27:01,848 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 [2020-10-29 11:27:01,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2020-10-29 11:27:02,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 820. [2020-10-29 11:27:02,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 820 states. [2020-10-29 11:27:02,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1029 transitions. [2020-10-29 11:27:02,086 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1029 transitions. Word has length 90 [2020-10-29 11:27:02,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:27:02,087 INFO L481 AbstractCegarLoop]: Abstraction has 820 states and 1029 transitions. [2020-10-29 11:27:02,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:27:02,087 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1029 transitions. [2020-10-29 11:27:02,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-29 11:27:02,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:27:02,090 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] [2020-10-29 11:27:02,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 11:27:02,090 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]=== [2020-10-29 11:27:02,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:27:02,091 INFO L82 PathProgramCache]: Analyzing trace with hash -2071466848, now seen corresponding path program 1 times [2020-10-29 11:27:02,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:27:02,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281776508] [2020-10-29 11:27:02,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:27:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:02,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:02,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:02,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 11:27:02,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:02,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-29 11:27:02,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:02,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:02,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:27:02,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-29 11:27:02,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:27:02,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:02,744 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:27:02,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:27:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:02,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:02,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:02,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:02,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:02,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 11:27:02,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:02,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:02,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:27:02,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:02,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:27:02,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:02,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:27:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:02,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:02,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:02,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:27:02,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:02,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:02,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:02,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:02,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:27:02,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:02,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:27:02,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:02,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:27:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:02,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:02,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:02,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:27:02,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:02,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:27:02,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:02,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:02,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:27:02,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:02,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:27:02,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:02,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:27:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:02,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:02,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:02,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:02,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:02,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:02,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:02,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:02,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:27:02,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:02,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:27:02,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:02,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:27:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:02,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:02,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:02,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:27:02,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:02,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:27:02,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:02,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:02,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:27:02,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:02,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:27:02,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:02,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:27:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:02,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:02,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:02,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:02,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:02,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:02,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:02,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:02,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:27:02,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:02,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:27:02,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:02,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:27:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:02,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:02,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:02,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 11:27:02,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:02,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 11:27:02,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:02,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:02,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:27:02,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 11:27:02,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:27:02,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:02,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:27:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:02,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:02,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:02,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 11:27:02,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:02,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 11:27:02,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:02,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:02,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:27:02,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 11:27:02,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:27:02,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:02,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:27:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:02,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:02,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:02,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 11:27:02,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:02,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 11:27:02,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:02,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:02,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:27:02,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 11:27:02,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:27:02,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:02,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:27:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:02,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:02,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:02,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:27:02,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:02,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 11:27:02,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:02,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:02,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:27:02,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:02,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 11:27:02,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 11:27:03,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:27:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:03,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:03,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:03,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:27:03,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:03,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:03,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:03,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:03,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:27:03,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:03,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:27:03,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 11:27:03,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:27:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:03,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:03,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:03,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:03,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:03,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:03,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:03,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:03,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:27:03,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:27:03,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:27:03,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:03,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 11:27:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:03,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:03,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:03,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:03,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:03,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:03,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:03,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:27:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:27:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:27:03,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:03,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 11:27:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:03,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:03,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:03,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:03,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:03,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:03,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:03,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:03,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:27:03,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:27:03,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:27:03,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:03,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:27:03,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281776508] [2020-10-29 11:27:03,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:27:03,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 11:27:03,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620010937] [2020-10-29 11:27:03,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 11:27:03,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:27:03,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 11:27:03,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-29 11:27:03,075 INFO L87 Difference]: Start difference. First operand 820 states and 1029 transitions. Second operand 9 states. [2020-10-29 11:27:04,815 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:27:05,235 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:27:05,718 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:27:06,146 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:27:08,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:27:08,026 INFO L93 Difference]: Finished difference Result 1871 states and 2530 transitions. [2020-10-29 11:27:08,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 11:27:08,027 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 90 [2020-10-29 11:27:08,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:27:08,037 INFO L225 Difference]: With dead ends: 1871 [2020-10-29 11:27:08,037 INFO L226 Difference]: Without dead ends: 1075 [2020-10-29 11:27:08,041 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 [2020-10-29 11:27:08,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2020-10-29 11:27:08,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 840. [2020-10-29 11:27:08,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 840 states. [2020-10-29 11:27:08,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1049 transitions. [2020-10-29 11:27:08,274 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1049 transitions. Word has length 90 [2020-10-29 11:27:08,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:27:08,275 INFO L481 AbstractCegarLoop]: Abstraction has 840 states and 1049 transitions. [2020-10-29 11:27:08,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 11:27:08,275 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1049 transitions. [2020-10-29 11:27:08,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-29 11:27:08,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:27:08,277 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] [2020-10-29 11:27:08,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 11:27:08,278 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]=== [2020-10-29 11:27:08,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:27:08,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1814087645, now seen corresponding path program 1 times [2020-10-29 11:27:08,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:27:08,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74595254] [2020-10-29 11:27:08,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:27:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:08,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:08,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:08,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 11:27:08,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:08,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 668 [2020-10-29 11:27:08,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:08,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:08,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 11:27:08,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:27:08,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 11:27:08,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:09,347 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:27:09,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:27:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:09,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:09,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:09,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:09,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:09,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 11:27:09,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:09,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:09,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:09,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:09,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:27:09,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:09,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:27:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:09,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:09,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:09,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:27:09,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:09,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:09,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:09,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:09,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:09,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:09,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:27:09,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:09,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:27:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:09,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:09,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:09,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:27:09,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:09,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:09,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:09,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:09,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:09,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:09,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:27:09,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:09,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:27:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:09,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:09,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:09,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:09,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:09,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:09,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:09,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:09,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:09,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:09,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:27:09,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:09,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:27:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:09,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:09,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:09,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:27:09,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:09,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:09,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:09,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:09,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:09,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:09,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:27:09,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:09,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:27:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:09,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:09,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:09,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:09,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:09,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:09,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:09,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:09,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:09,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:09,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:27:09,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:09,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:27:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:09,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:09,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:09,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 11:27:09,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:09,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 11:27:09,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:09,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 11:27:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 11:27:09,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:09,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:27:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:09,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:09,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:09,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 11:27:09,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:09,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 11:27:09,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:09,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:09,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:09,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:09,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 11:27:09,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:09,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:27:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:09,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:09,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:09,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 11:27:09,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:09,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 11:27:09,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:09,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:09,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:09,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:09,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 11:27:09,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:09,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:27:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:09,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:09,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:09,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:27:09,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:09,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 11:27:09,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:09,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 11:27:09,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:09,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:27:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:09,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:09,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:09,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:27:09,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:09,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:27:09,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:09,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:09,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:09,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:09,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 11:27:09,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:09,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:27:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:09,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:09,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:09,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:09,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:09,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:27:09,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:09,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:09,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:27:09,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:27:09,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:27:09,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:27:09,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 11:27:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:09,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:09,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:09,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:09,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:09,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:09,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:09,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:09,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:27:09,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:27:09,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:27:09,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:09,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 11:27:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:27:09,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:27:09,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:27:09,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:27:09,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:27:09,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:27:09,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:27:09,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:27:09,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:27:09,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:27:09,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:27:09,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:27:09,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:27:09,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74595254] [2020-10-29 11:27:09,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:27:09,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 11:27:09,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82004187] [2020-10-29 11:27:09,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 11:27:09,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:27:09,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 11:27:09,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 11:27:09,702 INFO L87 Difference]: Start difference. First operand 840 states and 1049 transitions. Second operand 7 states. [2020-10-29 11:27:10,370 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:27:11,114 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:27:15,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:27:15,802 INFO L93 Difference]: Finished difference Result 2770 states and 3873 transitions. [2020-10-29 11:27:15,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 11:27:15,803 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-29 11:27:15,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:27:15,819 INFO L225 Difference]: With dead ends: 2770 [2020-10-29 11:27:15,820 INFO L226 Difference]: Without dead ends: 1936 [2020-10-29 11:27:15,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-29 11:27:15,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2020-10-29 11:27:16,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1614. [2020-10-29 11:27:16,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1614 states. [2020-10-29 11:27:16,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2051 transitions. [2020-10-29 11:27:16,217 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2051 transitions. Word has length 90 [2020-10-29 11:27:16,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:27:16,218 INFO L481 AbstractCegarLoop]: Abstraction has 1614 states and 2051 transitions. [2020-10-29 11:27:16,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 11:27:16,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2051 transitions. [2020-10-29 11:27:16,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-29 11:27:16,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:27:16,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:27:16,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 11:27:16,221 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]=== [2020-10-29 11:27:16,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:27:16,222 INFO L82 PathProgramCache]: Analyzing trace with hash 2009488989, now seen corresponding path program 1 times [2020-10-29 11:27:16,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:27:16,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713814552] [2020-10-29 11:27:16,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:27:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:27:16,263 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:27:16,264 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:27:16,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 11:27:16,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:27:16 BoogieIcfgContainer [2020-10-29 11:27:16,294 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:27:16,296 INFO L168 Benchmark]: Toolchain (without parser) took 56556.39 ms. Allocated memory was 151.0 MB in the beginning and 669.0 MB in the end (delta: 518.0 MB). Free memory was 107.3 MB in the beginning and 544.0 MB in the end (delta: -436.7 MB). Peak memory consumption was 81.4 MB. Max. memory is 8.0 GB. [2020-10-29 11:27:16,296 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:27:16,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.99 ms. Allocated memory is still 151.0 MB. Free memory was 106.7 MB in the beginning and 125.1 MB in the end (delta: -18.5 MB). Peak memory consumption was 6.4 MB. Max. memory is 8.0 GB. [2020-10-29 11:27:16,298 INFO L168 Benchmark]: Boogie Preprocessor took 138.55 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 120.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-29 11:27:16,299 INFO L168 Benchmark]: RCFGBuilder took 3686.48 ms. Allocated memory was 151.0 MB in the beginning and 184.5 MB in the end (delta: 33.6 MB). Free memory was 120.9 MB in the beginning and 105.2 MB in the end (delta: 15.8 MB). Peak memory consumption was 52.0 MB. Max. memory is 8.0 GB. [2020-10-29 11:27:16,300 INFO L168 Benchmark]: TraceAbstraction took 52106.47 ms. Allocated memory was 184.5 MB in the beginning and 669.0 MB in the end (delta: 484.4 MB). Free memory was 104.6 MB in the beginning and 544.0 MB in the end (delta: -439.4 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. [2020-10-29 11:27:16,303 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 610.99 ms. Allocated memory is still 151.0 MB. Free memory was 106.7 MB in the beginning and 125.1 MB in the end (delta: -18.5 MB). Peak memory consumption was 6.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 138.55 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 120.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 3686.48 ms. Allocated memory was 151.0 MB in the beginning and 184.5 MB in the end (delta: 33.6 MB). Free memory was 120.9 MB in the beginning and 105.2 MB in the end (delta: 15.8 MB). Peak memory consumption was 52.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 52106.47 ms. Allocated memory was 184.5 MB in the beginning and 669.0 MB in the end (delta: 484.4 MB). Free memory was 104.6 MB in the beginning and 544.0 MB in the end (delta: -439.4 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int pumpRunning = 0; [L493] int systemActive = 1; [L813] int cleanupTimeShifts = 4; [L910] int waterLevel = 1; [L911] int methaneLevelCritical = 0; [L886] int retValue_acc ; [L887] int tmp ; [L891] FCALL select_helpers() [L892] FCALL select_features() [L893] CALL, EXPR valid_product() [L768] int retValue_acc ; [L771] retValue_acc = 1 [L772] return (retValue_acc); [L893] RET, EXPR valid_product() [L893] tmp = valid_product() [L895] COND TRUE \read(tmp) [L897] FCALL setup() [L898] CALL runTest() [L880] CALL test() [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 [L424] COND TRUE 1 [L426] COND TRUE splverifierCounter < 4 [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) [L436] CALL waterRise() [L928] COND TRUE waterLevel < 2 [L929] waterLevel = waterLevel + 1 [L436] RET waterRise() [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND TRUE \read(tmp___0) [L446] CALL changeMethaneLevel() [L940] COND FALSE !(\read(methaneLevelCritical)) [L943] methaneLevelCritical = 1 [L446] RET changeMethaneLevel() [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND FALSE !(\read(tmp___2)) [L460] tmp___1 = __VERIFIER_nondet_int() [L462] COND FALSE !(\read(tmp___1)) [L471] CALL timeShift() [L500] COND FALSE !(\read(pumpRunning)) [L507] COND TRUE \read(systemActive) [L509] CALL processEnvironment() [L581] int tmp ; [L584] COND FALSE !(\read(pumpRunning)) [L599] CALL processEnvironment__wrappee__lowWaterSensor() [L555] int tmp ; [L558] COND FALSE !(\read(pumpRunning)) [L573] CALL processEnvironment__wrappee__highWaterSensor() [L529] int tmp ; [L532] COND TRUE ! pumpRunning [L534] CALL, EXPR isHighWaterLevel() [L678] int retValue_acc ; [L679] int tmp ; [L680] int tmp___0 ; [L684] CALL, EXPR isHighWaterSensorDry() [L990] int retValue_acc ; [L993] COND FALSE !(waterLevel < 2) [L997] retValue_acc = 0 [L998] return (retValue_acc); [L684] RET, EXPR isHighWaterSensorDry() [L684] tmp = isHighWaterSensorDry() [L686] COND FALSE !(\read(tmp)) [L689] tmp___0 = 1 [L691] retValue_acc = tmp___0 [L692] return (retValue_acc); [L534] RET, EXPR isHighWaterLevel() [L534] tmp = isHighWaterLevel() [L536] COND TRUE \read(tmp) [L538] CALL activatePump() [L609] pumpRunning = 1 [L538] RET activatePump() [L573] RET processEnvironment__wrappee__highWaterSensor() [L599] RET processEnvironment__wrappee__lowWaterSensor() [L509] RET processEnvironment() [L515] CALL __utac_acc__Specification1_spec__1() [L779] int tmp ; [L780] int tmp___0 ; [L784] CALL, EXPR isMethaneLevelCritical() [L949] int retValue_acc ; [L952] retValue_acc = methaneLevelCritical [L953] return (retValue_acc); [L784] RET, EXPR isMethaneLevelCritical() [L784] tmp = isMethaneLevelCritical() [L786] COND TRUE \read(tmp) [L788] CALL, EXPR isPumpRunning() [L633] int retValue_acc ; [L636] retValue_acc = pumpRunning [L637] return (retValue_acc); [L788] RET, EXPR isPumpRunning() [L788] tmp___0 = isPumpRunning() [L790] COND TRUE \read(tmp___0) [L792] CALL __automaton_fail() [L808] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product56.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 267 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 52.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 32.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 955 SDtfs, 1935 SDslu, 981 SDs, 0 SdLazy, 5277 SolverSat, 1330 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 231 GetRequests, 154 SyntacticMatches, 5 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1614occurred 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: 1.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 1311 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 16.9s InterpolantComputationTime, 531 NumberOfCodeBlocks, 531 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 431 ConstructedInterpolants, 0 QuantifiedInterpolants, 144166 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...