/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 21:58:55,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 21:58:55,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 21:58:55,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 21:58:55,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 21:58:55,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 21:58:55,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 21:58:55,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 21:58:55,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 21:58:55,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 21:58:55,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 21:58:55,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 21:58:55,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 21:58:55,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 21:58:55,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 21:58:55,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 21:58:55,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 21:58:55,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 21:58:55,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 21:58:55,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 21:58:55,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 21:58:55,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 21:58:55,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 21:58:55,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 21:58:55,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 21:58:55,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 21:58:55,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 21:58:55,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 21:58:55,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 21:58:55,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 21:58:55,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 21:58:55,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 21:58:55,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 21:58:55,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 21:58:55,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 21:58:55,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 21:58:55,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 21:58:55,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 21:58:55,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 21:58:55,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 21:58:55,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 21:58:55,418 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 21:58:55,466 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 21:58:55,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 21:58:55,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 21:58:55,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 21:58:55,472 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 21:58:55,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 21:58:55,473 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 21:58:55,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 21:58:55,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 21:58:55,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 21:58:55,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 21:58:55,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 21:58:55,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 21:58:55,475 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 21:58:55,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 21:58:55,475 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 21:58:55,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 21:58:55,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 21:58:55,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 21:58:55,476 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 21:58:55,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 21:58:55,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 21:58:55,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 21:58:55,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 21:58:55,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 21:58:55,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 21:58:55,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 21:58:55,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 21:58:55,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 21:58:55,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 21:58:55,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 21:58:55,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 21:58:55,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 21:58:55,951 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 21:58:55,951 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 21:58:55,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-10-27 21:58:56,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25ded8d48/7071cb81d206403986fad391598f3155/FLAGa349d6c2f [2020-10-27 21:58:56,774 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 21:58:56,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-10-27 21:58:56,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25ded8d48/7071cb81d206403986fad391598f3155/FLAGa349d6c2f [2020-10-27 21:58:57,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/25ded8d48/7071cb81d206403986fad391598f3155 [2020-10-27 21:58:57,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 21:58:57,095 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 21:58:57,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 21:58:57,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 21:58:57,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 21:58:57,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 09:58:57" (1/1) ... [2020-10-27 21:58:57,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255b7fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:57, skipping insertion in model container [2020-10-27 21:58:57,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 09:58:57" (1/1) ... [2020-10-27 21:58:57,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 21:58:57,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 21:58:57,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 21:58:57,487 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 21:58:57,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 21:58:57,646 INFO L208 MainTranslator]: Completed translation [2020-10-27 21:58:57,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:57 WrapperNode [2020-10-27 21:58:57,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 21:58:57,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 21:58:57,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 21:58:57,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 21:58:57,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:57" (1/1) ... [2020-10-27 21:58:57,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:57" (1/1) ... [2020-10-27 21:58:57,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:57" (1/1) ... [2020-10-27 21:58:57,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:57" (1/1) ... [2020-10-27 21:58:57,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:57" (1/1) ... [2020-10-27 21:58:57,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:57" (1/1) ... [2020-10-27 21:58:57,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:57" (1/1) ... [2020-10-27 21:58:57,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 21:58:57,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 21:58:57,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 21:58:57,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 21:58:57,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 21:58:57,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 21:58:57,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 21:58:57,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 21:58:57,865 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 21:58:57,866 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 21:58:57,866 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 21:58:57,866 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 21:58:57,866 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 21:58:57,866 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 21:58:57,866 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 21:58:57,867 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 21:58:57,867 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 21:58:57,868 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 21:58:57,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 21:58:57,868 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 21:58:57,869 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-27 21:58:57,869 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 21:58:57,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-27 21:58:57,869 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 21:58:57,869 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 21:58:57,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 21:58:57,870 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 21:58:57,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 21:58:57,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 21:58:57,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 21:58:57,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 21:58:57,870 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 21:58:57,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 21:58:57,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 21:58:57,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 21:58:57,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 21:58:57,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 21:58:57,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 21:58:57,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 21:58:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 21:58:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 21:58:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 21:58:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 21:58:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 21:58:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 21:58:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 21:58:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 21:58:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 21:58:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 21:58:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 21:58:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 21:58:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 21:58:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 21:58:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 21:58:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 21:58:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 21:58:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 21:58:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 21:58:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 21:58:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 21:58:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 21:58:57,876 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 21:58:57,876 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-27 21:58:57,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-27 21:58:57,876 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 21:58:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 21:58:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 21:58:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 21:58:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 21:58:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 21:58:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 21:58:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 21:58:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 21:58:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 21:58:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 21:58:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 21:58:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 21:58:57,881 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 21:58:57,881 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 21:58:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 21:58:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 21:58:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 21:58:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 21:58:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 21:58:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 21:58:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 21:58:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 21:58:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 21:58:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 21:58:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 21:58:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 21:58:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 21:58:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 21:58:57,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 21:58:57,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 21:58:57,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 21:58:57,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 21:58:57,891 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 21:58:57,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 21:58:57,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 21:58:57,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 21:58:59,215 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 21:58:59,215 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 21:58:59,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 09:58:59 BoogieIcfgContainer [2020-10-27 21:58:59,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 21:58:59,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 21:58:59,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 21:58:59,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 21:58:59,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 09:58:57" (1/3) ... [2020-10-27 21:58:59,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618ab467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 09:58:59, skipping insertion in model container [2020-10-27 21:58:59,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:57" (2/3) ... [2020-10-27 21:58:59,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618ab467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 09:58:59, skipping insertion in model container [2020-10-27 21:58:59,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 09:58:59" (3/3) ... [2020-10-27 21:58:59,227 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2020-10-27 21:58:59,240 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 21:58:59,245 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 21:58:59,259 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 21:58:59,286 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 21:58:59,287 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 21:58:59,287 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 21:58:59,287 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 21:58:59,287 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 21:58:59,287 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 21:58:59,287 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 21:58:59,288 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 21:58:59,310 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2020-10-27 21:58:59,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-27 21:58:59,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:58:59,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 21:58:59,321 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:58:59,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:58:59,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1054308573, now seen corresponding path program 1 times [2020-10-27 21:58:59,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:58:59,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802095755] [2020-10-27 21:58:59,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:58:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:59,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:59,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:00,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:01,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:02,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:04,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:04,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-27 21:59:04,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 21:59:04,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 21:59:04,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:04,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:59:04,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-27 21:59:04,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 21:59:04,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-27 21:59:05,169 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:59:05,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:59:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:05,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:05,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:05,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:05,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:05,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-27 21:59:05,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:05,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:05,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:05,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:05,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:05,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:59:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:05,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:05,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:05,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:05,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:05,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:05,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:05,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:05,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 21:59:05,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:59:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:05,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:05,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:05,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:05,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:05,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:05,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:05,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:05,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:05,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:05,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:05,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:59:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:05,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:05,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:05,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:05,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:05,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:05,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:05,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:05,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:05,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:05,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:59:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:05,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:05,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:05,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:05,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:05,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:05,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:05,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:05,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:05,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 21:59:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:05,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:05,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:05,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:05,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:05,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 21:59:05,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:05,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:05,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:05,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:05,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 21:59:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:05,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:05,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:05,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:05,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:05,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 21:59:05,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:05,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:05,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:05,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:05,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:05,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 21:59:05,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802095755] [2020-10-27 21:59:05,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:59:05,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 21:59:05,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362574099] [2020-10-27 21:59:05,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 21:59:05,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:59:05,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 21:59:05,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 21:59:05,472 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 7 states. [2020-10-27 21:59:06,049 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:07,260 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 21:59:07,714 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 21:59:08,065 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 21:59:08,885 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:09,279 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 21:59:10,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:59:10,707 INFO L93 Difference]: Finished difference Result 409 states and 566 transitions. [2020-10-27 21:59:10,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 21:59:10,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2020-10-27 21:59:10,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:59:10,725 INFO L225 Difference]: With dead ends: 409 [2020-10-27 21:59:10,725 INFO L226 Difference]: Without dead ends: 250 [2020-10-27 21:59:10,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-27 21:59:10,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-27 21:59:10,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 214. [2020-10-27 21:59:10,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-27 21:59:10,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 269 transitions. [2020-10-27 21:59:10,879 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 269 transitions. Word has length 47 [2020-10-27 21:59:10,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:59:10,879 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 269 transitions. [2020-10-27 21:59:10,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 21:59:10,879 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 269 transitions. [2020-10-27 21:59:10,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-27 21:59:10,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:59:10,884 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] [2020-10-27 21:59:10,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 21:59:10,885 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:59:10,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:59:10,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1213271566, now seen corresponding path program 1 times [2020-10-27 21:59:10,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:59:10,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624867534] [2020-10-27 21:59:10,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:59:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:10,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:10,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 21:59:14,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 21:59:14,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3545 [2020-10-27 21:59:14,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:59:14,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-27 21:59:14,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 21:59:14,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,802 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:59:14,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:59:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:14,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 21:59:14,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:14,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:59:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:14,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:14,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:14,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:14,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:14,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:59:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:14,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:59:14,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:14,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:14,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:14,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:59:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:14,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:14,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:14,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:14,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:14,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:59:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:14,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:59:14,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:14,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:14,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:14,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 21:59:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 21:59:14,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 21:59:14,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:59:14,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 21:59:14,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 21:59:14,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:59:14,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 21:59:14,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:59:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 21:59:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 21:59:14,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:15,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:15,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:15,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:15,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 21:59:15,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:15,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 21:59:15,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:15,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:15,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:15,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 21:59:15,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:15,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:15,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:15,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:15,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:59:15,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:15,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 21:59:15,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:15,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:15,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:15,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:15,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:15,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 21:59:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:15,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:15,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:15,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:15,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:15,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 21:59:15,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:15,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:15,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:15,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:15,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:15,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 21:59:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:15,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:15,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:15,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:15,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:15,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:15,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:15,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:15,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:15,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:15,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:15,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 21:59:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:15,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:15,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:15,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:15,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:15,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:15,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:15,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:15,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:15,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:15,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 21:59:15,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 21:59:15,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624867534] [2020-10-27 21:59:15,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:59:15,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 21:59:15,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673393254] [2020-10-27 21:59:15,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 21:59:15,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:59:15,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 21:59:15,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 21:59:15,102 INFO L87 Difference]: Start difference. First operand 214 states and 269 transitions. Second operand 8 states. [2020-10-27 21:59:16,467 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:16,786 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 21:59:17,081 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:17,388 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 21:59:18,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:59:18,395 INFO L93 Difference]: Finished difference Result 476 states and 650 transitions. [2020-10-27 21:59:18,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 21:59:18,396 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-27 21:59:18,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:59:18,406 INFO L225 Difference]: With dead ends: 476 [2020-10-27 21:59:18,406 INFO L226 Difference]: Without dead ends: 286 [2020-10-27 21:59:18,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-27 21:59:18,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-27 21:59:18,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 222. [2020-10-27 21:59:18,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-10-27 21:59:18,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 277 transitions. [2020-10-27 21:59:18,484 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 277 transitions. Word has length 81 [2020-10-27 21:59:18,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:59:18,485 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 277 transitions. [2020-10-27 21:59:18,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 21:59:18,485 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 277 transitions. [2020-10-27 21:59:18,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-27 21:59:18,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:59:18,487 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] [2020-10-27 21:59:18,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 21:59:18,488 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:59:18,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:59:18,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1478258825, now seen corresponding path program 1 times [2020-10-27 21:59:18,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:59:18,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43128980] [2020-10-27 21:59:18,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:59:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:18,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:23,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:23,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 21:59:23,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 21:59:23,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4667 [2020-10-27 21:59:23,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:23,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:23,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-27 21:59:23,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:23,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:23,490 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:59:23,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:59:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:23,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:23,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:23,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:23,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:23,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 21:59:23,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:23,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:23,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:23,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:23,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:23,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:59:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:23,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:23,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:23,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:23,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:23,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:59:23,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:23,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:23,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:23,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:59:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:23,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:23,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:23,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:23,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:23,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:59:23,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:23,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:23,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:59:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:23,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:23,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:23,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:23,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:23,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:23,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:23,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:23,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:23,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:23,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:23,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:59:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:23,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:23,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:23,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:23,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:23,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:23,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:23,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:23,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:23,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:23,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:23,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 21:59:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:23,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:23,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:23,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 21:59:23,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:23,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 21:59:23,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 21:59:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:23,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:23,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:23,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:23,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:23,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:59:23,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:23,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 21:59:23,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 21:59:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:23,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:23,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:23,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:23,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:23,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 21:59:23,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:23,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 21:59:23,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:23,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:23,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 21:59:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:23,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:23,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:23,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:23,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:23,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:59:23,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:23,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 21:59:23,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:23,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 21:59:23,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:23,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:23,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:23,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 21:59:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:23,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:23,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:23,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:23,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:23,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:23,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:23,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:23,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 21:59:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:23,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:23,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:23,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:23,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:23,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:23,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:23,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:23,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:23,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:23,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:23,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 21:59:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:23,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:23,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:23,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:23,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:23,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:23,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:23,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:23,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:23,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 21:59:23,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43128980] [2020-10-27 21:59:23,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:59:23,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 21:59:23,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894959558] [2020-10-27 21:59:23,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 21:59:23,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:59:23,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 21:59:23,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 21:59:23,760 INFO L87 Difference]: Start difference. First operand 222 states and 277 transitions. Second operand 7 states. [2020-10-27 21:59:24,912 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:25,336 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:25,661 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:26,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:59:26,606 INFO L93 Difference]: Finished difference Result 491 states and 688 transitions. [2020-10-27 21:59:26,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 21:59:26,607 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 76 [2020-10-27 21:59:26,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:59:26,611 INFO L225 Difference]: With dead ends: 491 [2020-10-27 21:59:26,611 INFO L226 Difference]: Without dead ends: 293 [2020-10-27 21:59:26,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-27 21:59:26,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-27 21:59:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 226. [2020-10-27 21:59:26,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-27 21:59:26,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 281 transitions. [2020-10-27 21:59:26,684 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 281 transitions. Word has length 76 [2020-10-27 21:59:26,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:59:26,685 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 281 transitions. [2020-10-27 21:59:26,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 21:59:26,685 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 281 transitions. [2020-10-27 21:59:26,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-27 21:59:26,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:59:26,687 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] [2020-10-27 21:59:26,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 21:59:26,687 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:59:26,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:59:26,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1213809205, now seen corresponding path program 1 times [2020-10-27 21:59:26,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:59:26,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323111455] [2020-10-27 21:59:26,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:59:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:26,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:26,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:29,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:29,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 21:59:29,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 21:59:29,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2323 [2020-10-27 21:59:29,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:29,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 21:59:29,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:29,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 21:59:29,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:29,337 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:59:29,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:59:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:29,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:29,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:29,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:29,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:29,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 21:59:29,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 21:59:29,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:29,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:59:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:29,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:29,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:29,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:29,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:29,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:29,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:29,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:29,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:59:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:29,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:29,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:29,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:29,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:29,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:29,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:29,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:29,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:29,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:29,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 21:59:29,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:59:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:29,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:29,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:29,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:29,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:29,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:29,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:29,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:29,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:29,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:29,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:29,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:59:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:29,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:29,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:29,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:29,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:29,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:29,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:29,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:29,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:29,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:29,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:29,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-27 21:59:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:29,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:29,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:29,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 21:59:29,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:29,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 21:59:29,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:29,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:29,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:29,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 21:59:29,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:29,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:29,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:29,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:29,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:59:29,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:29,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 21:59:29,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:29,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:29,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:29,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:29,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:29,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:29,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:29,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:29,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 21:59:29,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:29,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:29,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:29,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:29,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:29,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:29,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:29,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:29,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:29,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:29,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:59:29,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:29,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:29,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:29,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:29,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:29,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:29,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:29,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 21:59:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:29,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:29,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:29,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:29,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:29,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 21:59:29,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:29,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:29,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 21:59:29,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 21:59:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:29,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:29,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:29,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:29,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:29,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:29,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:29,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:29,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:29,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 21:59:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:29,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:29,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:29,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:29,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:29,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:29,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:29,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:29,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:29,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 21:59:29,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323111455] [2020-10-27 21:59:29,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:59:29,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 21:59:29,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654467428] [2020-10-27 21:59:29,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 21:59:29,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:59:29,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 21:59:29,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 21:59:29,566 INFO L87 Difference]: Start difference. First operand 226 states and 281 transitions. Second operand 8 states. [2020-10-27 21:59:30,015 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:30,751 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 21:59:31,109 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 21:59:31,420 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 21:59:31,853 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:32,235 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:34,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:59:34,307 INFO L93 Difference]: Finished difference Result 731 states and 1027 transitions. [2020-10-27 21:59:34,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 21:59:34,307 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-27 21:59:34,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:59:34,317 INFO L225 Difference]: With dead ends: 731 [2020-10-27 21:59:34,318 INFO L226 Difference]: Without dead ends: 485 [2020-10-27 21:59:34,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-27 21:59:34,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-10-27 21:59:34,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 394. [2020-10-27 21:59:34,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-27 21:59:34,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 488 transitions. [2020-10-27 21:59:34,503 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 488 transitions. Word has length 81 [2020-10-27 21:59:34,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:59:34,504 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 488 transitions. [2020-10-27 21:59:34,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 21:59:34,504 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 488 transitions. [2020-10-27 21:59:34,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-27 21:59:34,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:59:34,508 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] [2020-10-27 21:59:34,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 21:59:34,508 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:59:34,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:59:34,509 INFO L82 PathProgramCache]: Analyzing trace with hash 2095992505, now seen corresponding path program 1 times [2020-10-27 21:59:34,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:59:34,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387669453] [2020-10-27 21:59:34,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:59:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:34,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:35,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:35,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 21:59:35,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:35,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 676 [2020-10-27 21:59:35,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:35,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 21:59:35,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:35,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-27 21:59:35,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:35,497 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:59:35,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:59:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:35,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:35,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:35,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:35,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:35,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 21:59:35,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:35,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:35,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:35,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 21:59:35,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:35,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:59:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:35,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:35,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:35,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:35,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:35,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:35,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:35,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:35,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:35,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:35,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:35,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:59:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:35,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:35,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:35,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:35,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:35,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:35,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:35,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:35,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:35,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:35,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:35,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:59:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:35,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:35,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:35,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:35,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:35,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:35,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:35,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:35,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:35,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:35,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:35,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:59:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:35,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:35,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:35,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:35,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:35,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:35,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:35,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:35,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:35,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:35,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:35,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 21:59:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:35,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:35,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:35,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:35,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:35,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:35,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:35,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:35,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:35,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:35,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:35,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 21:59:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:35,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:35,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:35,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 21:59:35,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:35,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 21:59:35,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:35,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:35,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 21:59:35,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 21:59:35,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:35,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:35,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:35,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:35,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:59:35,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:35,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 21:59:35,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:35,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:35,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 21:59:35,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:35,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:35,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:35,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:35,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 21:59:35,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:35,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 21:59:35,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:35,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:35,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:35,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 21:59:35,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:35,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:35,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:35,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:35,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:59:35,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:35,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:35,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:35,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:35,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:35,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 21:59:35,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:35,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 21:59:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:35,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:35,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:35,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:35,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:35,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:35,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:35,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:35,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:35,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:35,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:35,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 21:59:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:35,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:35,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:35,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:35,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:35,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:35,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:35,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:35,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:35,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:35,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:35,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 21:59:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:35,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:35,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:35,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:35,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:35,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:35,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:35,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:35,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:35,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:35,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:35,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 21:59:35,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387669453] [2020-10-27 21:59:35,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:59:35,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 21:59:35,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920260705] [2020-10-27 21:59:35,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 21:59:35,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:59:35,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 21:59:35,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 21:59:35,781 INFO L87 Difference]: Start difference. First operand 394 states and 488 transitions. Second operand 7 states. [2020-10-27 21:59:36,370 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:36,971 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:40,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:59:40,421 INFO L93 Difference]: Finished difference Result 1342 states and 1874 transitions. [2020-10-27 21:59:40,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 21:59:40,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-10-27 21:59:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:59:40,436 INFO L225 Difference]: With dead ends: 1342 [2020-10-27 21:59:40,436 INFO L226 Difference]: Without dead ends: 963 [2020-10-27 21:59:40,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-27 21:59:40,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2020-10-27 21:59:40,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 792. [2020-10-27 21:59:40,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 792 states. [2020-10-27 21:59:40,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 998 transitions. [2020-10-27 21:59:40,621 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 998 transitions. Word has length 85 [2020-10-27 21:59:40,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:59:40,621 INFO L481 AbstractCegarLoop]: Abstraction has 792 states and 998 transitions. [2020-10-27 21:59:40,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 21:59:40,621 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 998 transitions. [2020-10-27 21:59:40,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-27 21:59:40,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:59:40,624 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 21:59:40,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 21:59:40,625 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:59:40,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:59:40,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1964671746, now seen corresponding path program 1 times [2020-10-27 21:59:40,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:59:40,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8760802] [2020-10-27 21:59:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:59:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:40,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:40,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:40,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:40,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:40,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:44,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:45,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:45,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-27 21:59:45,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 21:59:45,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 21:59:45,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:45,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 21:59:45,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-27 21:59:45,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 21:59:45,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,077 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:59:46,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:59:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:46,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-27 21:59:46,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:46,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:46,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:59:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:46,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:46,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:46,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:46,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:59:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:46,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:46,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:46,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:46,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:59:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:46,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:46,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:46,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:46,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:59:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:46,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:46,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:46,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:46,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 21:59:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:46,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:46,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:46,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:46,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 21:59:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:46,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:46,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:46,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:46,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 21:59:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 21:59:46,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 21:59:46,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:59:46,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 21:59:46,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 21:59:46,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 21:59:46,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:59:46,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 21:59:46,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:46,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:46,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 21:59:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:46,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 21:59:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 21:59:46,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 21:59:46,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 21:59:46,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:59:46,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 21:59:46,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:46,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:46,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 21:59:46,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:46,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:46,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:59:46,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:46,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:46,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:46,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 21:59:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:46,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:46,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:46,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:46,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 21:59:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:46,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 21:59:46,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:46,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:46,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 21:59:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:46,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:46,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:46,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:46,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:46,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:46,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:46,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:46,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:46,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:46,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:46,552 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 21:59:46,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8760802] [2020-10-27 21:59:46,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 21:59:46,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 21:59:46,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559113648] [2020-10-27 21:59:46,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 21:59:46,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:59:46,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 21:59:46,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-27 21:59:46,558 INFO L87 Difference]: Start difference. First operand 792 states and 998 transitions. Second operand 13 states. [2020-10-27 21:59:47,742 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:48,790 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 21:59:49,430 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 207 [2020-10-27 21:59:50,082 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 208 [2020-10-27 21:59:50,385 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:50,738 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:51,095 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:54,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:59:54,973 INFO L93 Difference]: Finished difference Result 2206 states and 3212 transitions. [2020-10-27 21:59:54,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 21:59:54,974 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-10-27 21:59:54,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:59:54,987 INFO L225 Difference]: With dead ends: 2206 [2020-10-27 21:59:54,987 INFO L226 Difference]: Without dead ends: 1350 [2020-10-27 21:59:54,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=205, Invalid=607, Unknown=0, NotChecked=0, Total=812 [2020-10-27 21:59:54,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2020-10-27 21:59:55,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1139. [2020-10-27 21:59:55,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1139 states. [2020-10-27 21:59:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1467 transitions. [2020-10-27 21:59:55,256 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1467 transitions. Word has length 108 [2020-10-27 21:59:55,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:59:55,257 INFO L481 AbstractCegarLoop]: Abstraction has 1139 states and 1467 transitions. [2020-10-27 21:59:55,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 21:59:55,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1467 transitions. [2020-10-27 21:59:55,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-27 21:59:55,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:59:55,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 21:59:55,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 21:59:55,260 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:59:55,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:59:55,261 INFO L82 PathProgramCache]: Analyzing trace with hash 971954527, now seen corresponding path program 1 times [2020-10-27 21:59:55,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:59:55,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341961166] [2020-10-27 21:59:55,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:59:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 21:59:55,300 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 21:59:55,300 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 21:59:55,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 21:59:55,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 09:59:55 BoogieIcfgContainer [2020-10-27 21:59:55,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 21:59:55,330 INFO L168 Benchmark]: Toolchain (without parser) took 58239.43 ms. Allocated memory was 160.4 MB in the beginning and 777.0 MB in the end (delta: 616.6 MB). Free memory was 114.4 MB in the beginning and 491.4 MB in the end (delta: -377.0 MB). Peak memory consumption was 240.6 MB. Max. memory is 8.0 GB. [2020-10-27 21:59:55,331 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 160.4 MB. Free memory is still 132.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 21:59:55,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 550.19 ms. Allocated memory is still 160.4 MB. Free memory was 113.5 MB in the beginning and 134.2 MB in the end (delta: -20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-27 21:59:55,332 INFO L168 Benchmark]: Boogie Preprocessor took 123.60 ms. Allocated memory is still 160.4 MB. Free memory was 134.2 MB in the beginning and 130.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 21:59:55,333 INFO L168 Benchmark]: RCFGBuilder took 1445.52 ms. Allocated memory is still 160.4 MB. Free memory was 130.0 MB in the beginning and 99.9 MB in the end (delta: 30.1 MB). Peak memory consumption was 56.3 MB. Max. memory is 8.0 GB. [2020-10-27 21:59:55,334 INFO L168 Benchmark]: TraceAbstraction took 56108.72 ms. Allocated memory was 160.4 MB in the beginning and 777.0 MB in the end (delta: 616.6 MB). Free memory was 99.4 MB in the beginning and 491.4 MB in the end (delta: -392.0 MB). Peak memory consumption was 224.0 MB. Max. memory is 8.0 GB. [2020-10-27 21:59:55,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 160.4 MB. Free memory is still 132.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 550.19 ms. Allocated memory is still 160.4 MB. Free memory was 113.5 MB in the beginning and 134.2 MB in the end (delta: -20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 123.60 ms. Allocated memory is still 160.4 MB. Free memory was 134.2 MB in the beginning and 130.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1445.52 ms. Allocated memory is still 160.4 MB. Free memory was 130.0 MB in the beginning and 99.9 MB in the end (delta: 30.1 MB). Peak memory consumption was 56.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 56108.72 ms. Allocated memory was 160.4 MB in the beginning and 777.0 MB in the end (delta: 616.6 MB). Free memory was 99.4 MB in the beginning and 491.4 MB in the end (delta: -392.0 MB). Peak memory consumption was 224.0 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: [L53] int pumpRunning = 0; [L54] int systemActive = 1; [L354] int cleanupTimeShifts = 4; [L666] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L864] int waterLevel = 1; [L865] int methaneLevelCritical = 0; [L430] int retValue_acc ; [L431] int tmp ; [L435] FCALL select_helpers() [L436] FCALL select_features() [L437] CALL, EXPR valid_product() [L479] int retValue_acc ; [L482] retValue_acc = 1 [L483] return (retValue_acc); [L437] RET, EXPR valid_product() [L437] tmp = valid_product() [L439] COND TRUE \read(tmp) [L441] FCALL setup() [L442] CALL runTest() [L421] CALL test() [L259] int splverifierCounter ; [L260] int tmp ; [L261] int tmp___0 ; [L262] int tmp___1 ; [L263] int tmp___2 ; [L266] splverifierCounter = 0 [L268] COND TRUE 1 [L270] COND TRUE splverifierCounter < 4 [L276] tmp = __VERIFIER_nondet_int() [L278] COND TRUE \read(tmp) [L280] CALL waterRise() [L882] COND TRUE waterLevel < 2 [L883] waterLevel = waterLevel + 1 [L280] RET waterRise() [L286] tmp___0 = __VERIFIER_nondet_int() [L288] COND TRUE \read(tmp___0) [L290] CALL changeMethaneLevel() [L894] COND FALSE !(\read(methaneLevelCritical)) [L897] methaneLevelCritical = 1 [L290] RET changeMethaneLevel() [L296] tmp___2 = __VERIFIER_nondet_int() [L298] COND FALSE !(\read(tmp___2)) [L304] tmp___1 = __VERIFIER_nondet_int() [L306] COND FALSE !(\read(tmp___1)) [L315] CALL timeShift() [L61] COND FALSE !(\read(pumpRunning)) [L68] COND TRUE \read(systemActive) [L70] CALL processEnvironment() [L116] int tmp ; [L119] COND FALSE !(\read(pumpRunning)) [L134] CALL processEnvironment__wrappee__highWaterSensor() [L90] int tmp ; [L93] COND TRUE ! pumpRunning [L95] CALL, EXPR isHighWaterLevel() [L213] int retValue_acc ; [L214] int tmp ; [L215] int tmp___0 ; [L219] CALL, EXPR isHighWaterSensorDry() [L944] int retValue_acc ; [L947] COND FALSE !(waterLevel < 2) [L951] retValue_acc = 0 [L952] return (retValue_acc); [L219] RET, EXPR isHighWaterSensorDry() [L219] tmp = isHighWaterSensorDry() [L221] COND FALSE !(\read(tmp)) [L224] tmp___0 = 1 [L226] retValue_acc = tmp___0 [L227] return (retValue_acc); [L95] RET, EXPR isHighWaterLevel() [L95] tmp = isHighWaterLevel() [L97] COND TRUE \read(tmp) [L99] CALL activatePump() [L144] pumpRunning = 1 [L99] RET activatePump() [L134] RET processEnvironment__wrappee__highWaterSensor() [L70] RET processEnvironment() [L76] CALL __utac_acc__Specification1_spec__1() [L329] int tmp ; [L330] int tmp___0 ; [L334] CALL, EXPR isMethaneLevelCritical() [L903] int retValue_acc ; [L906] retValue_acc = methaneLevelCritical [L907] return (retValue_acc); [L334] RET, EXPR isMethaneLevelCritical() [L334] tmp = isMethaneLevelCritical() [L336] COND TRUE \read(tmp) [L338] CALL, EXPR isPumpRunning() [L168] int retValue_acc ; [L171] retValue_acc = pumpRunning [L172] return (retValue_acc); [L338] RET, EXPR isPumpRunning() [L338] tmp___0 = isPumpRunning() [L340] COND TRUE \read(tmp___0) [L342] CALL __automaton_fail() [L492] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product40.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 247 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 56.0s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 29.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 841 SDtfs, 1792 SDslu, 1139 SDs, 0 SdLazy, 5516 SolverSat, 1313 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 253 GetRequests, 168 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 11.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1139occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 640 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 25.1s InterpolantComputationTime, 567 NumberOfCodeBlocks, 567 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 472 ConstructedInterpolants, 0 QuantifiedInterpolants, 167422 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 9/12 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...