/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_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 21:58:47,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 21:58:47,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 21:58:47,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 21:58:47,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 21:58:47,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 21:58:47,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 21:58:47,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 21:58:47,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 21:58:47,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 21:58:47,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 21:58:47,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 21:58:47,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 21:58:47,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 21:58:47,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 21:58:47,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 21:58:47,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 21:58:47,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 21:58:47,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 21:58:47,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 21:58:47,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 21:58:47,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 21:58:47,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 21:58:47,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 21:58:47,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 21:58:47,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 21:58:47,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 21:58:47,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 21:58:47,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 21:58:47,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 21:58:47,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 21:58:47,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 21:58:47,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 21:58:47,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 21:58:47,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 21:58:47,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 21:58:47,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 21:58:47,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 21:58:47,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 21:58:47,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 21:58:47,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 21:58:47,805 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 21:58:47,859 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 21:58:47,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 21:58:47,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 21:58:47,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 21:58:47,863 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 21:58:47,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 21:58:47,864 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 21:58:47,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 21:58:47,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 21:58:47,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 21:58:47,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 21:58:47,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 21:58:47,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 21:58:47,867 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 21:58:47,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 21:58:47,867 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 21:58:47,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 21:58:47,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 21:58:47,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 21:58:47,868 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 21:58:47,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 21:58:47,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 21:58:47,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 21:58:47,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 21:58:47,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 21:58:47,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 21:58:47,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 21:58:47,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 21:58:47,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 21:58:47,870 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 21:58:48,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 21:58:48,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 21:58:48,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 21:58:48,303 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 21:58:48,304 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 21:58:48,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-10-27 21:58:48,401 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/231d89467/c6c576ca86e14d2aac64ba8fd7714aeb/FLAGb7518eb44 [2020-10-27 21:58:49,161 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 21:58:49,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-10-27 21:58:49,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/231d89467/c6c576ca86e14d2aac64ba8fd7714aeb/FLAGb7518eb44 [2020-10-27 21:58:49,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/231d89467/c6c576ca86e14d2aac64ba8fd7714aeb [2020-10-27 21:58:49,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 21:58:49,500 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 21:58:49,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 21:58:49,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 21:58:49,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 21:58:49,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 09:58:49" (1/1) ... [2020-10-27 21:58:49,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bfe779e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:49, skipping insertion in model container [2020-10-27 21:58:49,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 09:58:49" (1/1) ... [2020-10-27 21:58:49,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 21:58:49,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 21:58:49,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 21:58:49,915 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 21:58:50,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 21:58:50,101 INFO L208 MainTranslator]: Completed translation [2020-10-27 21:58:50,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:50 WrapperNode [2020-10-27 21:58:50,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 21:58:50,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 21:58:50,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 21:58:50,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 21:58:50,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:50" (1/1) ... [2020-10-27 21:58:50,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:50" (1/1) ... [2020-10-27 21:58:50,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:50" (1/1) ... [2020-10-27 21:58:50,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:50" (1/1) ... [2020-10-27 21:58:50,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:50" (1/1) ... [2020-10-27 21:58:50,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:50" (1/1) ... [2020-10-27 21:58:50,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:50" (1/1) ... [2020-10-27 21:58:50,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 21:58:50,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 21:58:50,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 21:58:50,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 21:58:50,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:50" (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 21:58:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 21:58:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 21:58:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 21:58:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 21:58:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 21:58:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 21:58:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 21:58:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 21:58:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 21:58:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 21:58:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 21:58:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 21:58:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 21:58:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 21:58:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 21:58:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-27 21:58:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 21:58:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 21:58:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 21:58:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 21:58:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 21:58:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 21:58:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 21:58:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 21:58:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 21:58:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 21:58:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 21:58:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 21:58:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 21:58:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 21:58:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 21:58:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 21:58:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 21:58:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 21:58:50,374 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 21:58:50,374 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 21:58:50,374 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 21:58:50,374 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 21:58:50,374 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 21:58:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 21:58:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 21:58:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 21:58:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 21:58:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 21:58:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 21:58:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 21:58:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 21:58:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 21:58:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 21:58:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 21:58:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 21:58:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 21:58:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 21:58:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 21:58:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 21:58:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 21:58:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 21:58:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 21:58:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 21:58:50,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 21:58:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 21:58:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 21:58:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 21:58:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 21:58:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 21:58:50,378 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 21:58:50,379 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 21:58:50,379 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 21:58:50,379 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 21:58:50,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 21:58:50,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 21:58:50,379 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 21:58:50,380 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 21:58:50,380 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 21:58:50,380 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 21:58:50,380 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 21:58:50,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-27 21:58:50,380 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 21:58:50,381 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 21:58:50,381 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 21:58:50,381 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 21:58:50,381 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 21:58:50,381 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 21:58:50,381 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 21:58:50,381 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 21:58:50,382 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 21:58:50,382 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 21:58:50,382 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 21:58:50,382 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 21:58:50,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 21:58:50,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 21:58:50,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 21:58:51,815 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 21:58:51,815 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 21:58:51,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 09:58:51 BoogieIcfgContainer [2020-10-27 21:58:51,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 21:58:51,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 21:58:51,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 21:58:51,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 21:58:51,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 09:58:49" (1/3) ... [2020-10-27 21:58:51,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273c88bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 09:58:51, skipping insertion in model container [2020-10-27 21:58:51,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:50" (2/3) ... [2020-10-27 21:58:51,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273c88bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 09:58:51, skipping insertion in model container [2020-10-27 21:58:51,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 09:58:51" (3/3) ... [2020-10-27 21:58:51,827 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-10-27 21:58:51,839 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 21:58:51,845 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 21:58:51,859 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 21:58:51,889 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 21:58:51,890 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 21:58:51,890 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 21:58:51,890 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 21:58:51,890 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 21:58:51,890 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 21:58:51,890 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 21:58:51,891 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 21:58:51,913 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2020-10-27 21:58:51,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-27 21:58:51,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:58:51,924 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 21:58:51,924 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 21:58:51,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:58:51,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1896159754, now seen corresponding path program 1 times [2020-10-27 21:58:51,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:58:51,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409239134] [2020-10-27 21:58:51,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:58:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:52,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:52,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:52,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:54,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:54,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:57,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:57,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-27 21:58:57,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 21:58:57,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 21:58:57,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:57,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:58:57,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-27 21:58:57,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 21:58:57,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 21:58:58,175 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:58:58,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:58:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:58,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:58,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:58,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:58:58,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:58,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 21:58:58,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:58,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:58,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:58,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:58,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:58,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:58:58,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:58,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:58,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:58,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:58:58,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:58,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:58:58,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:58,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:58,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:58,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:58,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:58,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:58:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:58,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:58,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:58,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:58:58,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:58,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:58:58,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:58,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:58,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:58,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:58,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:58,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:58:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:58,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:58,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:58,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:58:58,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:58,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:58:58,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:58,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:58,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:58,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:58,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:58,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:58:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:58,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:58,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:58,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:58:58,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:58,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:58:58,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:58,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:58,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:58,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:58,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:58,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 21:58:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:58,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:58,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:58,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:58:58,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:58,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 21:58:58,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:58:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:58:58,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:58,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 21:58:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:58,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:58,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:58,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:58:58,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:58,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 21:58:58,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:58,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:58:58,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:58,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:58:58,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:58,356 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 21:58:58,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409239134] [2020-10-27 21:58:58,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:58:58,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 21:58:58,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5925077] [2020-10-27 21:58:58,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 21:58:58,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:58:58,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 21:58:58,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 21:58:58,382 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 7 states. [2020-10-27 21:58:59,468 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:01,245 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 21:59:02,155 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 21:59:02,973 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-27 21:59:04,574 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:05,470 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 21:59:07,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:59:07,993 INFO L93 Difference]: Finished difference Result 380 states and 527 transitions. [2020-10-27 21:59:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 21:59:07,995 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2020-10-27 21:59:07,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:59:08,016 INFO L225 Difference]: With dead ends: 380 [2020-10-27 21:59:08,016 INFO L226 Difference]: Without dead ends: 231 [2020-10-27 21:59:08,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-27 21:59:08,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-27 21:59:08,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 198. [2020-10-27 21:59:08,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-27 21:59:08,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 250 transitions. [2020-10-27 21:59:08,155 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 250 transitions. Word has length 47 [2020-10-27 21:59:08,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:59:08,156 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 250 transitions. [2020-10-27 21:59:08,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 21:59:08,156 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 250 transitions. [2020-10-27 21:59:08,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-27 21:59:08,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:59:08,162 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-27 21:59:08,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 21:59:08,162 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 21:59:08,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:59:08,163 INFO L82 PathProgramCache]: Analyzing trace with hash 99391398, now seen corresponding path program 1 times [2020-10-27 21:59:08,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:59:08,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116984044] [2020-10-27 21:59:08,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:59:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:08,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:08,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:08,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:08,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:08,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:13,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:13,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-27 21:59:13,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 21:59:13,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 21:59:13,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:59:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-27 21:59:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 21:59:13,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:13,918 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:59:13,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:59:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:13,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:13,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:13,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:13,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:13,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 21:59:13,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:13,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:13,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:13,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:59:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:13,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:13,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:13,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:13,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:13,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:13,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:13,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:13,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:13,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:13,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:13,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:59:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:13,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:13,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:13,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:13,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:13,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:13,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:13,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:13,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:13,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:13,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:13,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:59:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:13,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:13,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:13,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:13,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:13,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:13,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:13,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:13,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:13,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:13,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:13,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:59:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:13,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:13,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:13,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:13,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:13,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:13,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:13,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:13,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:13,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:13,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 21:59:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 21:59:14,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 21:59:14,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:14,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:14,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:14,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 21:59:14,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:14,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:14,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:14,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:14,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:14,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:14,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:14,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:14,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:14,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 21:59:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 21:59:14,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 21:59:14,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:59:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 21:59:14,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 21:59:14,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:59:14,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 21:59:14,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:59:14,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 21:59:14,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 21:59:14,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 21:59:14,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 21:59:14,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:14,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:14,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 21:59:14,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:59:14,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:14,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:14,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:14,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:14,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 21:59:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:14,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:14,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:14,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:14,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:14,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 21:59:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:14,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:14,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:14,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:14,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:14,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 21:59:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:14,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:14,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:14,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:14,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:14,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:14,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:14,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:14,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:14,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:14,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:14,272 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-27 21:59:14,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116984044] [2020-10-27 21:59:14,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 21:59:14,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 21:59:14,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142952685] [2020-10-27 21:59:14,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 21:59:14,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:59:14,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 21:59:14,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-27 21:59:14,276 INFO L87 Difference]: Start difference. First operand 198 states and 250 transitions. Second operand 9 states. [2020-10-27 21:59:16,526 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:17,301 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 21:59:18,108 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:18,865 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 21:59:20,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:59:20,604 INFO L93 Difference]: Finished difference Result 450 states and 625 transitions. [2020-10-27 21:59:20,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 21:59:20,605 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-10-27 21:59:20,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:59:20,611 INFO L225 Difference]: With dead ends: 450 [2020-10-27 21:59:20,611 INFO L226 Difference]: Without dead ends: 276 [2020-10-27 21:59:20,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-27 21:59:20,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-10-27 21:59:20,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 203. [2020-10-27 21:59:20,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-27 21:59:20,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 255 transitions. [2020-10-27 21:59:20,700 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 255 transitions. Word has length 95 [2020-10-27 21:59:20,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:59:20,701 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 255 transitions. [2020-10-27 21:59:20,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 21:59:20,701 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 255 transitions. [2020-10-27 21:59:20,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-27 21:59:20,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:59:20,705 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] [2020-10-27 21:59:20,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 21:59:20,705 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 21:59:20,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:59:20,706 INFO L82 PathProgramCache]: Analyzing trace with hash -843243887, now seen corresponding path program 1 times [2020-10-27 21:59:20,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:59:20,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287370432] [2020-10-27 21:59:20,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:59:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:20,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:20,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:23,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:23,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-27 21:59:23,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 21:59:23,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2671 [2020-10-27 21:59:23,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:23,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:23,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 21:59:23,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:23,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 21:59:24,081 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:59:24,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:59:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:24,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:24,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:24,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:24,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:24,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 21:59:24,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:24,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:24,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:59:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:24,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:24,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:24,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:24,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:24,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:59:24,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:24,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:24,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:24,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:24,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:24,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:59:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:24,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:24,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:24,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:24,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:24,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:59:24,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:24,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:24,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:24,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:24,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:24,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:59:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:24,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:24,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:24,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:24,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:24,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:24,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:24,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:24,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:24,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:24,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:24,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:59:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:24,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:24,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:24,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:24,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:24,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:24,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:24,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:24,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:24,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:24,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:24,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 21:59:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:24,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:24,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:24,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 21:59:24,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:24,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 21:59:24,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:24,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:24,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 21:59:24,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:24,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:24,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:24,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:24,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:24,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:59:24,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:24,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 21:59:24,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:24,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:24,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 21:59:24,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:24,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:24,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:24,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:24,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:24,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 21:59:24,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:24,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 21:59:24,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:24,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:24,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 21:59:24,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:24,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:24,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:24,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:24,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:24,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:59:24,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:24,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 21:59:24,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:24,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 21:59:24,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:24,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:24,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 21:59:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:24,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:24,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:24,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:24,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:24,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:24,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:24,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:24,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:24,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:24,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:24,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 21:59:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:24,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:24,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:24,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:24,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:24,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:24,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:24,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:24,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:24,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:24,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 21:59:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:24,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:24,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:24,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:24,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:24,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:24,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:24,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:24,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:24,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:24,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:24,318 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 21:59:24,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287370432] [2020-10-27 21:59:24,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:59:24,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 21:59:24,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734906453] [2020-10-27 21:59:24,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 21:59:24,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:59:24,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 21:59:24,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 21:59:24,321 INFO L87 Difference]: Start difference. First operand 203 states and 255 transitions. Second operand 7 states. [2020-10-27 21:59:26,357 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:27,244 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:27,986 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:29,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:59:29,667 INFO L93 Difference]: Finished difference Result 449 states and 636 transitions. [2020-10-27 21:59:29,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 21:59:29,669 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2020-10-27 21:59:29,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:59:29,673 INFO L225 Difference]: With dead ends: 449 [2020-10-27 21:59:29,673 INFO L226 Difference]: Without dead ends: 270 [2020-10-27 21:59:29,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-27 21:59:29,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-27 21:59:29,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 207. [2020-10-27 21:59:29,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-10-27 21:59:29,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 259 transitions. [2020-10-27 21:59:29,742 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 259 transitions. Word has length 80 [2020-10-27 21:59:29,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:59:29,743 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 259 transitions. [2020-10-27 21:59:29,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 21:59:29,743 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 259 transitions. [2020-10-27 21:59:29,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-27 21:59:29,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:59:29,745 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] [2020-10-27 21:59:29,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 21:59:29,746 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 21:59:29,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:59:29,746 INFO L82 PathProgramCache]: Analyzing trace with hash 882237010, now seen corresponding path program 1 times [2020-10-27 21:59:29,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:59:29,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307688828] [2020-10-27 21:59:29,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:59:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:29,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:30,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:31,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:31,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-27 21:59:31,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 21:59:31,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2042 [2020-10-27 21:59:31,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:31,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 21:59:31,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:31,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-27 21:59:31,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:32,500 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:59:32,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:59:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:32,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:32,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:32,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:32,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:32,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-27 21:59:32,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 21:59:32,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:32,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:59:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:32,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:32,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:32,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:32,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:32,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:32,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:32,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:32,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:32,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:32,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:32,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:59:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:32,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:32,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:32,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:32,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:32,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:32,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:32,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:32,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:32,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:32,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:32,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:59:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:32,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:32,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:32,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:32,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:32,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:32,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:32,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:32,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:32,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:59:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:32,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:32,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:32,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:32,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:32,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:32,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:32,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:32,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:32,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:32,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:32,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 21:59:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:32,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:32,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:32,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 21:59:32,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:32,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 21:59:32,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:32,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 21:59:32,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:32,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:32,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:32,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:32,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:59:32,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:32,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 21:59:32,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:32,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:32,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:32,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:32,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:32,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:32,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:32,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:32,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 21:59:32,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:32,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:32,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:32,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:32,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:32,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:32,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:32,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:32,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:32,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:32,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:59:32,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:32,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:32,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:32,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:32,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:32,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:32,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:32,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 21:59:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:32,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:32,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:32,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:32,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:32,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:32,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:32,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:32,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:32,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:32,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:32,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 21:59:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:32,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:32,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:32,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:32,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:32,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 21:59:32,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:32,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:32,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:32,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:32,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:32,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 21:59:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:32,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:32,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:32,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:32,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:32,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:32,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:32,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:32,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:32,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:32,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:32,732 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 21:59:32,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307688828] [2020-10-27 21:59:32,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:59:32,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 21:59:32,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268057110] [2020-10-27 21:59:32,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 21:59:32,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:59:32,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 21:59:32,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 21:59:32,735 INFO L87 Difference]: Start difference. First operand 207 states and 259 transitions. Second operand 8 states. [2020-10-27 21:59:33,671 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:35,892 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 211 DAG size of output: 206 [2020-10-27 21:59:36,727 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 21:59:37,456 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 21:59:38,314 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-27 21:59:39,215 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:43,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:59:43,094 INFO L93 Difference]: Finished difference Result 668 states and 949 transitions. [2020-10-27 21:59:43,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 21:59:43,095 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-27 21:59:43,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:59:43,101 INFO L225 Difference]: With dead ends: 668 [2020-10-27 21:59:43,101 INFO L226 Difference]: Without dead ends: 441 [2020-10-27 21:59:43,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-27 21:59:43,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-10-27 21:59:43,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 356. [2020-10-27 21:59:43,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-10-27 21:59:43,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 444 transitions. [2020-10-27 21:59:43,210 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 444 transitions. Word has length 80 [2020-10-27 21:59:43,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:59:43,210 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 444 transitions. [2020-10-27 21:59:43,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 21:59:43,211 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 444 transitions. [2020-10-27 21:59:43,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-27 21:59:43,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:59:43,213 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] [2020-10-27 21:59:43,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 21:59:43,214 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 21:59:43,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:59:43,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1957298034, now seen corresponding path program 1 times [2020-10-27 21:59:43,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:59:43,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333770555] [2020-10-27 21:59:43,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:59:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:43,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:43,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:44,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 21:59:44,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:44,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 758 [2020-10-27 21:59:44,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:44,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 21:59:44,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:44,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-27 21:59:44,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:44,670 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:59:44,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:59:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:44,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:44,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:44,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:44,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:44,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 21:59:44,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:44,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:44,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:44,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 21:59:44,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:44,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:59:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:44,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:44,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:44,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:44,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:44,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:44,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:44,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:44,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:44,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:44,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:44,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:59:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:44,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:44,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:44,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:44,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:44,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:44,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:44,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:44,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:44,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:44,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:59:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:44,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:44,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:44,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:44,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:44,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:44,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:44,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:44,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:44,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:44,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:44,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:59:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:44,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:44,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:44,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:44,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:44,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:44,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:44,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:44,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:44,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:44,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:44,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 21:59:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:44,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:44,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:44,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:44,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:44,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:44,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:44,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:44,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:44,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:44,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:44,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 21:59:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:44,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:44,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:44,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 21:59:44,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:44,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 21:59:44,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:44,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:44,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 21:59:44,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 21:59:44,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:44,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:44,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:44,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:44,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:59:44,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:44,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 21:59:44,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:44,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:44,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 21:59:44,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 21:59:44,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:44,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:44,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:44,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 21:59:44,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:44,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 21:59:44,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:44,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:44,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:44,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 21:59:44,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:44,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:44,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:44,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:44,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:59:44,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:44,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:44,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:44,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:44,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:44,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 21:59:44,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:44,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 21:59:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:44,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:44,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:44,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:44,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:44,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 21:59:44,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:44,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:44,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:44,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:44,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:44,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 21:59:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:44,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:44,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:44,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:44,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:44,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:44,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:44,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:44,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:44,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:44,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 21:59:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:44,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:44,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:44,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:44,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:44,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:44,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:44,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:44,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:44,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:44,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:44,974 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 21:59:44,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333770555] [2020-10-27 21:59:44,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:59:44,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 21:59:44,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438862025] [2020-10-27 21:59:44,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 21:59:44,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:59:44,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 21:59:44,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 21:59:44,978 INFO L87 Difference]: Start difference. First operand 356 states and 444 transitions. Second operand 8 states. [2020-10-27 21:59:46,048 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:47,386 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:50,647 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:56,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:59:56,151 INFO L93 Difference]: Finished difference Result 1458 states and 2144 transitions. [2020-10-27 21:59:56,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 21:59:56,152 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-27 21:59:56,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:59:56,168 INFO L225 Difference]: With dead ends: 1458 [2020-10-27 21:59:56,168 INFO L226 Difference]: Without dead ends: 1096 [2020-10-27 21:59:56,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2020-10-27 21:59:56,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2020-10-27 21:59:56,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 929. [2020-10-27 21:59:56,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-10-27 21:59:56,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1201 transitions. [2020-10-27 21:59:56,458 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1201 transitions. Word has length 84 [2020-10-27 21:59:56,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:59:56,459 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1201 transitions. [2020-10-27 21:59:56,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 21:59:56,459 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1201 transitions. [2020-10-27 21:59:56,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-27 21:59:56,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:59:56,462 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] [2020-10-27 21:59:56,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 21:59:56,463 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 21:59:56,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:59:56,464 INFO L82 PathProgramCache]: Analyzing trace with hash -849644596, now seen corresponding path program 1 times [2020-10-27 21:59:56,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:59:56,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312168614] [2020-10-27 21:59:56,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:59:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:56,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:56,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:56,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:56,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:57,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:57,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:59,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:59,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-27 21:59:59,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 21:59:59,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3136 [2020-10-27 21:59:59,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:59,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 21:59:59,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-27 21:59:59,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 21:59:59,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,422 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:00:00,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:00:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:00,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 22:00:00,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:00,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:00:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:00:00,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:00:00,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:00,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:00:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:00:00,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:00:00,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:00,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:00,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:00:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:00,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:00:00,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:00,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:00,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:00:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:00:00,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:00:00,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:00,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 22:00:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:00,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:00:00,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:00,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:00,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 22:00:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:00,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:00:00,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:00,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:00,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 22:00:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 22:00:00,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:00:00,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:00:00,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 22:00:00,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:00:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 22:00:00,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:00:00,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:00:00,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:00:00,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:00:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:00,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:00:00,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:00:00,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:00:00,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 22:00:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 22:00:00,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:00:00,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:00:00,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:00:00,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:00:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:00:00,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:00:00,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:00,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:00:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 22:00:00,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:00:00,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:00,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:00,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:00:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:00:00,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:00:00,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:00,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 22:00:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:00,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:00:00,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:00,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:00,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 22:00:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:00,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:00:00,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:00:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:00:00,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 22:00:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:00,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:00,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:00,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:00,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:00,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:00:00,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:00:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:00,841 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 22:00:00,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1312168614] [2020-10-27 22:00:00,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:00:00,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 22:00:00,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658129125] [2020-10-27 22:00:00,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 22:00:00,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:00:00,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 22:00:00,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:00:00,846 INFO L87 Difference]: Start difference. First operand 929 states and 1201 transitions. Second operand 13 states. [2020-10-27 22:00:02,097 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:00:03,773 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 22:00:05,244 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 209 DAG size of output: 207 [2020-10-27 22:00:06,796 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 210 DAG size of output: 208 [2020-10-27 22:00:07,516 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:00:08,358 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:00:09,199 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:00:15,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:00:15,319 INFO L93 Difference]: Finished difference Result 2522 states and 3660 transitions. [2020-10-27 22:00:15,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 22:00:15,320 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 107 [2020-10-27 22:00:15,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:00:15,333 INFO L225 Difference]: With dead ends: 2522 [2020-10-27 22:00:15,333 INFO L226 Difference]: Without dead ends: 1522 [2020-10-27 22:00:15,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2020-10-27 22:00:15,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2020-10-27 22:00:15,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1326. [2020-10-27 22:00:15,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1326 states. [2020-10-27 22:00:15,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1760 transitions. [2020-10-27 22:00:15,644 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1760 transitions. Word has length 107 [2020-10-27 22:00:15,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:00:15,644 INFO L481 AbstractCegarLoop]: Abstraction has 1326 states and 1760 transitions. [2020-10-27 22:00:15,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 22:00:15,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1760 transitions. [2020-10-27 22:00:15,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-27 22:00:15,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:00:15,648 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2020-10-27 22:00:15,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:00:15,648 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 22:00:15,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:00:15,649 INFO L82 PathProgramCache]: Analyzing trace with hash -644311129, now seen corresponding path program 1 times [2020-10-27 22:00:15,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:00:15,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924965907] [2020-10-27 22:00:15,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:00:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:15,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:15,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:15,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:15,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:16,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:16,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-27 22:00:16,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:00:16,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 584 [2020-10-27 22:00:16,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:00:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-27 22:00:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 22:00:16,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:16,899 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:00:16,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:00:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:16,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:16,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:16,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:16,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:16,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 22:00:16,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:16,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:16,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:16,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:16,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:16,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:00:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:16,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:16,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:16,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:00:16,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:16,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:00:16,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:16,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:16,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:00:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:16,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:16,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:16,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:00:16,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:16,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:00:16,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:16,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:16,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:16,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:16,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:16,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:00:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:16,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:16,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:16,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:16,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:16,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:00:16,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:16,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:16,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:16,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:16,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:16,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:00:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:16,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:16,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:16,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:00:16,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:16,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:00:16,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:16,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:16,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 22:00:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:16,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:16,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:16,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:16,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:16,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:00:16,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:16,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:17,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 22:00:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:17,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:17,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:17,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:17,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:17,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:00:17,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:17,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:17,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 22:00:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:17,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:17,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:17,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 22:00:17,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:17,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:00:17,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:17,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:00:17,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:17,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:00:17,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:00:17,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:00:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:17,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:17,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:17,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 22:00:17,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:17,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:00:17,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:17,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:00:17,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:17,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:00:17,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:17,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:00:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:17,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:17,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:17,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:17,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:17,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:00:17,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:17,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:17,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 22:00:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:17,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:17,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:17,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:17,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:17,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:00:17,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:17,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:17,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:17,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:17,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:17,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 22:00:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:17,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:17,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:17,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 22:00:17,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:17,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:00:17,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:17,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:17,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-27 22:00:17,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:17,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:17,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:00:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:17,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:17,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:17,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:00:17,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:17,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:00:17,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:17,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:17,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:17,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:17,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:00:17,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:00:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:17,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:17,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:17,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 22:00:17,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:17,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:00:17,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:17,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:17,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:17,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:17,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:00:17,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 22:00:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:17,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:17,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:17,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:00:17,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:17,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:00:17,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:17,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:17,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:00:17,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 22:00:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:17,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:17,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:17,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:17,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:17,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:00:17,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:00:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:17,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:17,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 22:00:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:17,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:17,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:17,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:17,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:17,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:00:17,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:17,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:17,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:00:17,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:17,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:17,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 22:00:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:00:17,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:00:17,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:00:17,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:00:17,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:00:17,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:00:17,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:00:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:00:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:00:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:00:17,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:00:17,207 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 22:00:17,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924965907] [2020-10-27 22:00:17,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:00:17,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 22:00:17,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138241689] [2020-10-27 22:00:17,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 22:00:17,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:00:17,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 22:00:17,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-27 22:00:17,209 INFO L87 Difference]: Start difference. First operand 1326 states and 1760 transitions. Second operand 8 states. [2020-10-27 22:00:18,777 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:00:23,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:00:23,883 INFO L93 Difference]: Finished difference Result 3656 states and 5255 transitions. [2020-10-27 22:00:23,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 22:00:23,884 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 113 [2020-10-27 22:00:23,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:00:23,901 INFO L225 Difference]: With dead ends: 3656 [2020-10-27 22:00:23,901 INFO L226 Difference]: Without dead ends: 1829 [2020-10-27 22:00:23,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-10-27 22:00:23,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2020-10-27 22:00:24,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1608. [2020-10-27 22:00:24,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1608 states. [2020-10-27 22:00:24,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2135 transitions. [2020-10-27 22:00:24,334 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2135 transitions. Word has length 113 [2020-10-27 22:00:24,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:00:24,334 INFO L481 AbstractCegarLoop]: Abstraction has 1608 states and 2135 transitions. [2020-10-27 22:00:24,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 22:00:24,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2135 transitions. [2020-10-27 22:00:24,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 22:00:24,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:00:24,338 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] [2020-10-27 22:00:24,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 22:00:24,339 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:00:24,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:00:24,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1402630312, now seen corresponding path program 1 times [2020-10-27 22:00:24,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:00:24,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477386467] [2020-10-27 22:00:24,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:00:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 22:00:24,381 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 22:00:24,381 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 22:00:24,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 22:00:24,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:00:24 BoogieIcfgContainer [2020-10-27 22:00:24,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 22:00:24,425 INFO L168 Benchmark]: Toolchain (without parser) took 94936.07 ms. Allocated memory was 154.1 MB in the beginning and 566.2 MB in the end (delta: 412.1 MB). Free memory was 128.9 MB in the beginning and 350.8 MB in the end (delta: -221.9 MB). Peak memory consumption was 190.6 MB. Max. memory is 8.0 GB. [2020-10-27 22:00:24,426 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 154.1 MB. Free memory was 126.3 MB in the beginning and 126.3 MB in the end (delta: 77.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:00:24,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.18 ms. Allocated memory is still 154.1 MB. Free memory was 128.2 MB in the beginning and 107.5 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-27 22:00:24,427 INFO L168 Benchmark]: Boogie Preprocessor took 167.57 ms. Allocated memory is still 154.1 MB. Free memory was 107.5 MB in the beginning and 136.4 MB in the end (delta: -28.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 8.0 GB. [2020-10-27 22:00:24,428 INFO L168 Benchmark]: RCFGBuilder took 1544.06 ms. Allocated memory is still 154.1 MB. Free memory was 136.4 MB in the beginning and 132.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 90.2 MB. Max. memory is 8.0 GB. [2020-10-27 22:00:24,429 INFO L168 Benchmark]: TraceAbstraction took 92603.96 ms. Allocated memory was 154.1 MB in the beginning and 566.2 MB in the end (delta: 412.1 MB). Free memory was 132.0 MB in the beginning and 350.8 MB in the end (delta: -218.8 MB). Peak memory consumption was 192.7 MB. Max. memory is 8.0 GB. [2020-10-27 22:00:24,432 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 154.1 MB. Free memory was 126.3 MB in the beginning and 126.3 MB in the end (delta: 77.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 601.18 ms. Allocated memory is still 154.1 MB. Free memory was 128.2 MB in the beginning and 107.5 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 167.57 ms. Allocated memory is still 154.1 MB. Free memory was 107.5 MB in the beginning and 136.4 MB in the end (delta: -28.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1544.06 ms. Allocated memory is still 154.1 MB. Free memory was 136.4 MB in the beginning and 132.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 90.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 92603.96 ms. Allocated memory was 154.1 MB in the beginning and 566.2 MB in the end (delta: 412.1 MB). Free memory was 132.0 MB in the beginning and 350.8 MB in the end (delta: -218.8 MB). Peak memory consumption was 192.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L489] int retValue_acc ; [L490] int tmp ; [L494] FCALL select_helpers() [L495] FCALL select_features() [L496] CALL, EXPR valid_product() [L576] int retValue_acc ; [L579] retValue_acc = 1 [L580] return (retValue_acc); [L496] RET, EXPR valid_product() [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L500] FCALL setup() [L501] CALL runTest() [L480] CALL test() [L769] int splverifierCounter ; [L770] int tmp ; [L771] int tmp___0 ; [L772] int tmp___1 ; [L773] int tmp___2 ; [L776] splverifierCounter = 0 [L778] COND TRUE 1 [L780] COND TRUE splverifierCounter < 4 [L786] tmp = __VERIFIER_nondet_int() [L788] COND TRUE \read(tmp) [L790] CALL waterRise() [L852] COND TRUE waterLevel < 2 [L853] waterLevel = waterLevel + 1 [L790] RET waterRise() [L796] tmp___0 = __VERIFIER_nondet_int() [L798] COND TRUE \read(tmp___0) [L800] CALL changeMethaneLevel() [L864] COND FALSE !(\read(methaneLevelCritical)) [L867] methaneLevelCritical = 1 [L800] RET changeMethaneLevel() [L806] tmp___2 = __VERIFIER_nondet_int() [L808] COND TRUE \read(tmp___2) [L821] CALL timeShift() [L597] COND FALSE !(\read(pumpRunning)) [L604] COND TRUE \read(systemActive) [L606] CALL processEnvironment() [L652] int tmp ; [L655] COND FALSE !(\read(pumpRunning)) [L670] CALL processEnvironment__wrappee__highWaterSensor() [L626] int tmp ; [L629] COND TRUE ! pumpRunning [L631] CALL, EXPR isHighWaterLevel() [L749] int retValue_acc ; [L750] int tmp ; [L751] int tmp___0 ; [L755] CALL, EXPR isHighWaterSensorDry() [L914] int retValue_acc ; [L917] COND FALSE !(waterLevel < 2) [L921] retValue_acc = 0 [L922] return (retValue_acc); [L755] RET, EXPR isHighWaterSensorDry() [L755] tmp = isHighWaterSensorDry() [L757] COND FALSE !(\read(tmp)) [L760] tmp___0 = 1 [L762] retValue_acc = tmp___0 [L763] return (retValue_acc); [L631] RET, EXPR isHighWaterLevel() [L631] tmp = isHighWaterLevel() [L633] COND TRUE \read(tmp) [L635] CALL activatePump() [L680] pumpRunning = 1 [L635] RET activatePump() [L670] RET processEnvironment__wrappee__highWaterSensor() [L606] RET processEnvironment() [L612] CALL __utac_acc__Specification1_spec__1() [L516] int tmp ; [L517] int tmp___0 ; [L521] CALL, EXPR isMethaneLevelCritical() [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L521] RET, EXPR isMethaneLevelCritical() [L521] tmp = isMethaneLevelCritical() [L523] COND TRUE \read(tmp) [L525] CALL, EXPR isPumpRunning() [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] return (retValue_acc); [L525] RET, EXPR isPumpRunning() [L525] tmp___0 = isPumpRunning() [L527] COND TRUE \read(tmp___0) [L529] CALL __automaton_fail() [L545] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product37.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 237 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 92.5s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 64.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 923 SDtfs, 2335 SDslu, 1134 SDs, 0 SdLazy, 5684 SolverSat, 1625 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 317 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 29.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1608occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 838 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 26.1s InterpolantComputationTime, 694 NumberOfCodeBlocks, 694 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 599 ConstructedInterpolants, 0 QuantifiedInterpolants, 213672 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 35/40 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...