/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 16:40:43,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 16:40:43,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 16:40:43,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 16:40:43,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 16:40:43,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 16:40:43,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 16:40:43,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 16:40:43,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 16:40:43,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 16:40:43,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 16:40:43,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 16:40:43,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 16:40:43,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 16:40:43,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 16:40:43,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 16:40:43,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 16:40:43,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 16:40:43,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 16:40:43,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 16:40:43,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 16:40:43,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 16:40:43,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 16:40:43,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 16:40:43,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 16:40:43,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 16:40:43,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 16:40:43,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 16:40:43,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 16:40:43,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 16:40:43,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 16:40:43,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 16:40:43,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 16:40:43,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 16:40:43,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 16:40:43,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 16:40:43,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 16:40:43,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 16:40:43,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 16:40:43,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 16:40:43,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 16:40:43,759 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 [2020-10-28 16:40:43,786 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 16:40:43,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 16:40:43,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 16:40:43,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 16:40:43,789 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 16:40:43,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 16:40:43,789 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 16:40:43,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 16:40:43,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 16:40:43,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 16:40:43,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 16:40:43,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 16:40:43,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 16:40:43,791 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 16:40:43,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 16:40:43,791 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 16:40:43,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 16:40:43,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 16:40:43,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 16:40:43,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 16:40:43,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 16:40:43,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:40:43,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 16:40:43,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 16:40:43,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 16:40:43,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 16:40:43,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 16:40:43,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 16:40:43,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 16:40:43,794 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 16:40:44,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 16:40:44,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 16:40:44,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 16:40:44,197 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 16:40:44,198 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 16:40:44,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-10-28 16:40:44,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02499cc86/7c01aa98b70649918bbeb16bb7898f6c/FLAG03e41d3a7 [2020-10-28 16:40:45,079 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 16:40:45,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-10-28 16:40:45,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02499cc86/7c01aa98b70649918bbeb16bb7898f6c/FLAG03e41d3a7 [2020-10-28 16:40:45,386 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02499cc86/7c01aa98b70649918bbeb16bb7898f6c [2020-10-28 16:40:45,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 16:40:45,398 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 16:40:45,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 16:40:45,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 16:40:45,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 16:40:45,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:40:45" (1/1) ... [2020-10-28 16:40:45,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28176dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:45, skipping insertion in model container [2020-10-28 16:40:45,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:40:45" (1/1) ... [2020-10-28 16:40:45,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 16:40:45,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 16:40:45,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:40:45,919 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 16:40:46,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:40:46,064 INFO L208 MainTranslator]: Completed translation [2020-10-28 16:40:46,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:46 WrapperNode [2020-10-28 16:40:46,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 16:40:46,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 16:40:46,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 16:40:46,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 16:40:46,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:46" (1/1) ... [2020-10-28 16:40:46,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:46" (1/1) ... [2020-10-28 16:40:46,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:46" (1/1) ... [2020-10-28 16:40:46,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:46" (1/1) ... [2020-10-28 16:40:46,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:46" (1/1) ... [2020-10-28 16:40:46,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:46" (1/1) ... [2020-10-28 16:40:46,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:46" (1/1) ... [2020-10-28 16:40:46,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 16:40:46,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 16:40:46,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 16:40:46,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 16:40:46,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:46" (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 [2020-10-28 16:40:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 16:40:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 16:40:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-28 16:40:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 16:40:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-28 16:40:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-28 16:40:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-28 16:40:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-28 16:40:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-28 16:40:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-28 16:40:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-28 16:40:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-28 16:40:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-28 16:40:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-28 16:40:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-28 16:40:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-28 16:40:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-28 16:40:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-28 16:40:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-28 16:40:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-28 16:40:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-28 16:40:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-28 16:40:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-28 16:40:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-28 16:40:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-28 16:40:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-28 16:40:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-28 16:40:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-28 16:40:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-28 16:40:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-28 16:40:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-28 16:40:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-28 16:40:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-28 16:40:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-28 16:40:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-28 16:40:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 16:40:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-28 16:40:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-28 16:40:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-28 16:40:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 16:40:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 16:40:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 16:40:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 16:40:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 16:40:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 16:40:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-28 16:40:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 16:40:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 16:40:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-28 16:40:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 16:40:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 16:40:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 16:40:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 16:40:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-28 16:40:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 16:40:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-28 16:40:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-28 16:40:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 16:40:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-28 16:40:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-28 16:40:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-28 16:40:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-28 16:40:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-28 16:40:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-28 16:40:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-28 16:40:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-28 16:40:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-28 16:40:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-28 16:40:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-28 16:40:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-28 16:40:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-28 16:40:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-28 16:40:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-28 16:40:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 16:40:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-28 16:40:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-28 16:40:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-28 16:40:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-28 16:40:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-28 16:40:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-28 16:40:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-28 16:40:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-28 16:40:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-28 16:40:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-28 16:40:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-28 16:40:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-28 16:40:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-28 16:40:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-28 16:40:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-28 16:40:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-28 16:40:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 16:40:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 16:40:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 16:40:46,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 16:40:47,740 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 16:40:47,741 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 16:40:47,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:40:47 BoogieIcfgContainer [2020-10-28 16:40:47,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 16:40:47,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 16:40:47,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 16:40:47,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 16:40:47,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:40:45" (1/3) ... [2020-10-28 16:40:47,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b012baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:40:47, skipping insertion in model container [2020-10-28 16:40:47,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:46" (2/3) ... [2020-10-28 16:40:47,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b012baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:40:47, skipping insertion in model container [2020-10-28 16:40:47,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:40:47" (3/3) ... [2020-10-28 16:40:47,753 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2020-10-28 16:40:47,783 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 16:40:47,788 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-28 16:40:47,802 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-28 16:40:47,834 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 16:40:47,834 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 16:40:47,834 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 16:40:47,834 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 16:40:47,834 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 16:40:47,835 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 16:40:47,835 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 16:40:47,835 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 16:40:47,858 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2020-10-28 16:40:47,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-28 16:40:47,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:40:47,869 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] [2020-10-28 16:40:47,869 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]=== [2020-10-28 16:40:47,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:40:47,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1346991171, now seen corresponding path program 1 times [2020-10-28 16:40:47,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:40:47,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [196438618] [2020-10-28 16:40:47,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:40:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:48,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:48,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:48,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:50,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:50,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:53,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:53,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 16:40:53,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 16:40:53,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-28 16:40:53,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:53,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 16:40:53,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:53,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-28 16:40:53,660 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:40:53,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:40:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:53,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:53,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:53,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:40:53,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:53,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 16:40:53,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:53,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:53,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:53,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:53,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:53,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:40:53,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:40:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:53,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:53,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:53,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:40:53,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:53,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:40:53,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:53,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:53,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:53,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:53,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:53,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:40:53,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:40:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:53,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:53,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:53,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:40:53,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:53,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:40:53,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:53,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:53,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:53,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:53,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:53,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:40:53,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:40:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:53,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:53,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:53,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:40:53,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:53,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:40:53,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:53,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:53,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:53,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:53,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:53,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:40:53,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:40:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:53,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:53,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:53,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:40:53,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:53,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:40:53,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:53,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:53,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:53,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:53,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 16:40:53,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 16:40:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:53,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:53,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:53,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:40:53,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:53,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:40:53,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:53,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:53,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:53,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:40:53,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:53,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:40:53,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:40:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:53,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:53,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:53,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:40:53,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:53,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:40:53,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:53,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:53,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:53,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:40:53,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:53,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:40:53,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:40:53,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [196438618] [2020-10-28 16:40:53,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:40:53,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 16:40:53,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82102955] [2020-10-28 16:40:53,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 16:40:53,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:40:53,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 16:40:53,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:40:53,876 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 3 states. [2020-10-28 16:40:55,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:40:55,219 INFO L93 Difference]: Finished difference Result 306 states and 403 transitions. [2020-10-28 16:40:55,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 16:40:55,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-10-28 16:40:55,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:40:55,235 INFO L225 Difference]: With dead ends: 306 [2020-10-28 16:40:55,236 INFO L226 Difference]: Without dead ends: 164 [2020-10-28 16:40:55,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:40:55,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-28 16:40:55,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 130. [2020-10-28 16:40:55,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-28 16:40:55,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 154 transitions. [2020-10-28 16:40:55,343 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 154 transitions. Word has length 47 [2020-10-28 16:40:55,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:40:55,344 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 154 transitions. [2020-10-28 16:40:55,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 16:40:55,344 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 154 transitions. [2020-10-28 16:40:55,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-28 16:40:55,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:40:55,347 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] [2020-10-28 16:40:55,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 16:40:55,348 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]=== [2020-10-28 16:40:55,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:40:55,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1426333935, now seen corresponding path program 1 times [2020-10-28 16:40:55,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:40:55,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130510749] [2020-10-28 16:40:55,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:40:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:55,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:55,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:55,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:57,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:58,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:00,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:00,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 16:41:00,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 16:41:00,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-28 16:41:00,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:00,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 16:41:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:41:00,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:00,886 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:00,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:00,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:00,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:00,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:00,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:00,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 16:41:00,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:00,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:00,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:00,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:00,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:00,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:00,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:00,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:00,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:00,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:00,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:00,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:00,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:00,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:00,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:00,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:00,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:00,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:00,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:00,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:00,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:00,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:00,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:00,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:00,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:00,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:00,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:00,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:00,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:00,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:00,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:00,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:00,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:00,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:00,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:00,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:00,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:00,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:00,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:00,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:00,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:00,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:00,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:00,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:00,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:00,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:00,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:00,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:00,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:00,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:00,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:00,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:00,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:00,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:41:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:00,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:00,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:00,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:00,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:00,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:00,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:00,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:00,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:00,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:00,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:00,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:00,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:41:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:00,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:00,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:00,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:00,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:00,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:00,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:00,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:00,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:00,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:00,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:41:00,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130510749] [2020-10-28 16:41:00,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:00,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:41:00,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521058845] [2020-10-28 16:41:00,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:41:00,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:00,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:41:00,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:41:00,999 INFO L87 Difference]: Start difference. First operand 130 states and 154 transitions. Second operand 4 states. [2020-10-28 16:41:01,587 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:02,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:02,790 INFO L93 Difference]: Finished difference Result 230 states and 282 transitions. [2020-10-28 16:41:02,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:41:02,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-10-28 16:41:02,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:02,799 INFO L225 Difference]: With dead ends: 230 [2020-10-28 16:41:02,799 INFO L226 Difference]: Without dead ends: 148 [2020-10-28 16:41:02,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:41:02,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-28 16:41:02,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2020-10-28 16:41:02,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-28 16:41:02,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 142 transitions. [2020-10-28 16:41:02,891 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 142 transitions. Word has length 48 [2020-10-28 16:41:02,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:02,892 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 142 transitions. [2020-10-28 16:41:02,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:41:02,892 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 142 transitions. [2020-10-28 16:41:02,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-28 16:41:02,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:02,902 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] [2020-10-28 16:41:02,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 16:41:02,905 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]=== [2020-10-28 16:41:02,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:02,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1259401911, now seen corresponding path program 1 times [2020-10-28 16:41:02,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:02,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635279477] [2020-10-28 16:41:02,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:02,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:05,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:05,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:05,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 16:41:05,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 16:41:05,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2702 [2020-10-28 16:41:05,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:05,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 16:41:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:05,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 16:41:05,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:06,085 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:06,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:06,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:06,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:06,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:06,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:06,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 16:41:06,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:06,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:41:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:06,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:06,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:06,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:06,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:06,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:06,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:06,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:06,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:06,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:06,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:06,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:06,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:06,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:06,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:06,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:06,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:06,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:06,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:06,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:06,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:06,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:06,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:06,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:06,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:41:06,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:06,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:06,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:06,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:06,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:06,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:06,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:06,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:06,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:06,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:06,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:06,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:41:06,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:06,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:06,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:06,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:06,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:06,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:06,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 16:41:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:06,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:06,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:06,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:06,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:06,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:06,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:06,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:06,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:06,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:06,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:06,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:06,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 16:41:06,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:06,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:06,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:06,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:06,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:06,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:06,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:06,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:06,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:06,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:41:06,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635279477] [2020-10-28 16:41:06,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:06,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:41:06,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268600618] [2020-10-28 16:41:06,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:41:06,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:06,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:41:06,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:41:06,238 INFO L87 Difference]: Start difference. First operand 121 states and 142 transitions. Second operand 4 states. [2020-10-28 16:41:06,665 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:08,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:08,468 INFO L93 Difference]: Finished difference Result 354 states and 440 transitions. [2020-10-28 16:41:08,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:41:08,469 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-10-28 16:41:08,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:08,477 INFO L225 Difference]: With dead ends: 354 [2020-10-28 16:41:08,477 INFO L226 Difference]: Without dead ends: 257 [2020-10-28 16:41:08,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:41:08,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-28 16:41:08,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 211. [2020-10-28 16:41:08,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-28 16:41:08,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 254 transitions. [2020-10-28 16:41:08,556 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 254 transitions. Word has length 52 [2020-10-28 16:41:08,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:08,557 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 254 transitions. [2020-10-28 16:41:08,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:41:08,557 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 254 transitions. [2020-10-28 16:41:08,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-28 16:41:08,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:08,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:41:08,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 16:41:08,560 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]=== [2020-10-28 16:41:08,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:08,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1240189398, now seen corresponding path program 1 times [2020-10-28 16:41:08,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:08,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256193441] [2020-10-28 16:41:08,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:08,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:09,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:09,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:10,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:12,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:12,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 16:41:12,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 16:41:12,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3819 [2020-10-28 16:41:12,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:12,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:12,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 16:41:12,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-28 16:41:12,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 16:41:12,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:12,902 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:12,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:12,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:12,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:12,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:12,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:12,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 16:41:12,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:12,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:12,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:12,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:12,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:12,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:12,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:12,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:12,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:12,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:12,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:12,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:12,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:12,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:12,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:12,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:12,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:12,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:12,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:12,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:12,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:12,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:12,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:12,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:12,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:12,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:12,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:12,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:12,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:12,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:12,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:12,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:12,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:12,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:12,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:12,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:12,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:12,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:12,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:12,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:12,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:12,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:12,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:12,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:12,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:12,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:12,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:12,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:12,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:12,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:12,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:13,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:41:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:13,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:13,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:13,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:41:13,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:13,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:41:13,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:13,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:13,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:13,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:13,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:41:13,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:13,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 16:41:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:13,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:13,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:13,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:13,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:13,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:41:13,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:13,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:13,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:13,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:13,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:13,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:13,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 16:41:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:13,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:13,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:13,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:13,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:13,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:41:13,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:13,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:13,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:13,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:41:13,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256193441] [2020-10-28 16:41:13,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:13,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:41:13,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980153144] [2020-10-28 16:41:13,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:41:13,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:13,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:41:13,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:41:13,059 INFO L87 Difference]: Start difference. First operand 211 states and 254 transitions. Second operand 8 states. [2020-10-28 16:41:13,686 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:14,938 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 16:41:15,431 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:41:15,889 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-28 16:41:16,655 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:17,168 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:41:18,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:18,298 INFO L93 Difference]: Finished difference Result 587 states and 771 transitions. [2020-10-28 16:41:18,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:41:18,301 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-10-28 16:41:18,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:18,308 INFO L225 Difference]: With dead ends: 587 [2020-10-28 16:41:18,309 INFO L226 Difference]: Without dead ends: 400 [2020-10-28 16:41:18,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:41:18,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-10-28 16:41:18,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 343. [2020-10-28 16:41:18,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-10-28 16:41:18,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 423 transitions. [2020-10-28 16:41:18,441 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 423 transitions. Word has length 58 [2020-10-28 16:41:18,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:18,442 INFO L481 AbstractCegarLoop]: Abstraction has 343 states and 423 transitions. [2020-10-28 16:41:18,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:41:18,442 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 423 transitions. [2020-10-28 16:41:18,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-28 16:41:18,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:18,444 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] [2020-10-28 16:41:18,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 16:41:18,445 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]=== [2020-10-28 16:41:18,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:18,446 INFO L82 PathProgramCache]: Analyzing trace with hash -532191115, now seen corresponding path program 1 times [2020-10-28 16:41:18,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:18,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180701283] [2020-10-28 16:41:18,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:18,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:18,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:21,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:21,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 16:41:21,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:41:21,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2707 [2020-10-28 16:41:21,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:21,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:41:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 16:41:21,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:41:21,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:21,562 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:21,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:21,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:21,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:21,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:21,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:21,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 16:41:21,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:21,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:21,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:21,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:21,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:21,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:21,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:21,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:21,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:21,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:21,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:21,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:21,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:21,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:21,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:21,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:21,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:21,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:21,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:21,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:21,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:21,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:21,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:21,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:21,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:21,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:21,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:21,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:21,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:21,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:21,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:21,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:21,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:21,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:21,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:21,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:21,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:21,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:21,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:21,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:21,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:21,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:21,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:21,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:21,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:21,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:21,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:21,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:21,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 16:41:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:21,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:21,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:21,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:41:21,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:21,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 16:41:21,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:21,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:21,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:41:21,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 16:41:21,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:41:21,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:21,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:21,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:21,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:21,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:41:21,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:21,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 16:41:21,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:21,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:21,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:41:21,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 16:41:21,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:41:21,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:21,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:21,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:21,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:21,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:41:21,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:21,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 16:41:21,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:21,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:21,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:21,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:21,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 16:41:21,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:21,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:41:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:21,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:21,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:21,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:41:21,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:21,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:21,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:21,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:21,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:21,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:21,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:21,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:21,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:41:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:21,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:21,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:21,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:21,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:21,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:21,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:21,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:21,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:21,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:21,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:21,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:21,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 16:41:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:21,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:21,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:21,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:21,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:21,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:21,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:21,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:21,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:21,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:21,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:21,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:21,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 16:41:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:21,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:21,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:21,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:21,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:21,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:21,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:21,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:21,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:21,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:21,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:41:21,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180701283] [2020-10-28 16:41:21,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:21,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:41:21,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423127331] [2020-10-28 16:41:21,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:41:21,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:21,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:41:21,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:41:21,889 INFO L87 Difference]: Start difference. First operand 343 states and 423 transitions. Second operand 8 states. [2020-10-28 16:41:23,300 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:23,755 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-28 16:41:24,233 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:24,715 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:25,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:25,712 INFO L93 Difference]: Finished difference Result 733 states and 946 transitions. [2020-10-28 16:41:25,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 16:41:25,713 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-28 16:41:25,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:25,717 INFO L225 Difference]: With dead ends: 733 [2020-10-28 16:41:25,717 INFO L226 Difference]: Without dead ends: 414 [2020-10-28 16:41:25,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-28 16:41:25,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2020-10-28 16:41:25,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 356. [2020-10-28 16:41:25,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-10-28 16:41:25,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 437 transitions. [2020-10-28 16:41:25,833 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 437 transitions. Word has length 80 [2020-10-28 16:41:25,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:25,833 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 437 transitions. [2020-10-28 16:41:25,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:41:25,834 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 437 transitions. [2020-10-28 16:41:25,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-28 16:41:25,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:25,837 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] [2020-10-28 16:41:25,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 16:41:25,837 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]=== [2020-10-28 16:41:25,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:25,838 INFO L82 PathProgramCache]: Analyzing trace with hash 169408759, now seen corresponding path program 1 times [2020-10-28 16:41:25,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:25,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59540837] [2020-10-28 16:41:25,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:25,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:25,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:27,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:27,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 16:41:27,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:41:27,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2099 [2020-10-28 16:41:27,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:27,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:27,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:27,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-28 16:41:27,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:27,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:28,448 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:28,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:28,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 16:41:28,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:28,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:28,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:28,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:28,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:28,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:28,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:28,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:28,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:28,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:28,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:28,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:28,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:28,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:28,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:28,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:28,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:28,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:28,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:28,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:28,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:28,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:28,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:28,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:28,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:28,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 16:41:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:41:28,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 16:41:28,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:28,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 16:41:28,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:28,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:28,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:41:28,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 16:41:28,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:28,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 16:41:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:28,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:28,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:41:28,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 16:41:28,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:28,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 16:41:28,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:28,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:28,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:41:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:41:28,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 16:41:28,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 16:41:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:28,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:28,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:28,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:41:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:28,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:28,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:28,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:28,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:28,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:28,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 16:41:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:28,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:41:28,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:28,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:28,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:28,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:28,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 16:41:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:28,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:28,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:28,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:28,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:28,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:28,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:41:28,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59540837] [2020-10-28 16:41:28,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:28,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 16:41:28,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203953817] [2020-10-28 16:41:28,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 16:41:28,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:28,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 16:41:28,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:41:28,696 INFO L87 Difference]: Start difference. First operand 356 states and 437 transitions. Second operand 7 states. [2020-10-28 16:41:29,830 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:30,273 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:30,702 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:31,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:31,782 INFO L93 Difference]: Finished difference Result 760 states and 995 transitions. [2020-10-28 16:41:31,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 16:41:31,784 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2020-10-28 16:41:31,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:31,789 INFO L225 Difference]: With dead ends: 760 [2020-10-28 16:41:31,789 INFO L226 Difference]: Without dead ends: 428 [2020-10-28 16:41:31,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-28 16:41:31,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-10-28 16:41:31,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 364. [2020-10-28 16:41:31,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-10-28 16:41:31,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 445 transitions. [2020-10-28 16:41:31,890 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 445 transitions. Word has length 80 [2020-10-28 16:41:31,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:31,891 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 445 transitions. [2020-10-28 16:41:31,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 16:41:31,891 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 445 transitions. [2020-10-28 16:41:31,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-28 16:41:31,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:31,893 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] [2020-10-28 16:41:31,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 16:41:31,893 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]=== [2020-10-28 16:41:31,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:31,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1894889656, now seen corresponding path program 1 times [2020-10-28 16:41:31,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:31,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307378181] [2020-10-28 16:41:31,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:31,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:32,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:33,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:33,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 16:41:33,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:41:33,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1765 [2020-10-28 16:41:33,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:33,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:33,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 16:41:33,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:33,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-28 16:41:33,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:34,117 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:34,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:34,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-28 16:41:34,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:34,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:41:34,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:34,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:34,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:41:34,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:34,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:34,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:34,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:34,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:34,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:34,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:34,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:34,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:34,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:34,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:34,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 16:41:34,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:34,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:34,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:34,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:34,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:34,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 16:41:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:41:34,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 16:41:34,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 16:41:34,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:34,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:41:34,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 16:41:34,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:34,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:34,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:34,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:41:34,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:41:34,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:34,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:34,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:34,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:41:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:41:34,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:34,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:34,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:34,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:34,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:41:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:34,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:34,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:34,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:34,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:34,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 16:41:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:34,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:41:34,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:34,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:34,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:34,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 16:41:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:34,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:34,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:34,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:34,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:34,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:41:34,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307378181] [2020-10-28 16:41:34,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:34,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:41:34,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484158550] [2020-10-28 16:41:34,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:41:34,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:34,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:41:34,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:41:34,382 INFO L87 Difference]: Start difference. First operand 364 states and 445 transitions. Second operand 8 states. [2020-10-28 16:41:35,002 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:36,095 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:36,557 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:36,997 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:37,392 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:37,934 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:40,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:40,006 INFO L93 Difference]: Finished difference Result 1127 states and 1476 transitions. [2020-10-28 16:41:40,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:41:40,007 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-28 16:41:40,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:40,016 INFO L225 Difference]: With dead ends: 1127 [2020-10-28 16:41:40,016 INFO L226 Difference]: Without dead ends: 787 [2020-10-28 16:41:40,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:41:40,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-10-28 16:41:40,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 676. [2020-10-28 16:41:40,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2020-10-28 16:41:40,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 833 transitions. [2020-10-28 16:41:40,204 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 833 transitions. Word has length 80 [2020-10-28 16:41:40,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:40,205 INFO L481 AbstractCegarLoop]: Abstraction has 676 states and 833 transitions. [2020-10-28 16:41:40,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:41:40,205 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 833 transitions. [2020-10-28 16:41:40,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-28 16:41:40,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:40,207 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] [2020-10-28 16:41:40,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 16:41:40,208 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]=== [2020-10-28 16:41:40,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:40,209 INFO L82 PathProgramCache]: Analyzing trace with hash 600448820, now seen corresponding path program 1 times [2020-10-28 16:41:40,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:40,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089895682] [2020-10-28 16:41:40,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:40,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:40,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:40,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 16:41:40,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:40,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-10-28 16:41:40,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:40,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:40,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 16:41:40,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:40,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 16:41:40,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,210 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:41,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:41,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-28 16:41:41,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:41:41,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:41,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:41,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:41,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:41,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:41,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:41,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:41,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:41,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 16:41:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:41,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:41,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:41:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:41:41,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 16:41:41,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 16:41:41,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 16:41:41,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:41:41,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:41:41,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 16:41:41,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:41:41,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:41:41,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 16:41:41,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:41:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:41:41,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:41:41,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:41:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:41,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:41,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 16:41:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:41,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:41,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:41,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:41,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 16:41:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:41,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:41,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:41,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:41,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:41:41,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089895682] [2020-10-28 16:41:41,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:41,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:41:41,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900668138] [2020-10-28 16:41:41,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:41:41,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:41,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:41:41,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:41:41,453 INFO L87 Difference]: Start difference. First operand 676 states and 833 transitions. Second operand 8 states. [2020-10-28 16:41:41,983 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:42,713 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:44,997 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:47,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:47,620 INFO L93 Difference]: Finished difference Result 2754 states and 3864 transitions. [2020-10-28 16:41:47,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-28 16:41:47,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-28 16:41:47,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:47,641 INFO L225 Difference]: With dead ends: 2754 [2020-10-28 16:41:47,641 INFO L226 Difference]: Without dead ends: 2102 [2020-10-28 16:41:47,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-10-28 16:41:47,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2020-10-28 16:41:48,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 1828. [2020-10-28 16:41:48,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1828 states. [2020-10-28 16:41:48,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2301 transitions. [2020-10-28 16:41:48,148 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2301 transitions. Word has length 84 [2020-10-28 16:41:48,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:48,149 INFO L481 AbstractCegarLoop]: Abstraction has 1828 states and 2301 transitions. [2020-10-28 16:41:48,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:41:48,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2301 transitions. [2020-10-28 16:41:48,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-28 16:41:48,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:48,152 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] [2020-10-28 16:41:48,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 16:41:48,153 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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]=== [2020-10-28 16:41:48,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:48,153 INFO L82 PathProgramCache]: Analyzing trace with hash 348550030, now seen corresponding path program 1 times [2020-10-28 16:41:48,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:48,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150601786] [2020-10-28 16:41:48,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 16:41:48,193 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 16:41:48,193 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 16:41:48,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 16:41:48,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 04:41:48 BoogieIcfgContainer [2020-10-28 16:41:48,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 16:41:48,226 INFO L168 Benchmark]: Toolchain (without parser) took 62834.76 ms. Allocated memory was 151.0 MB in the beginning and 723.5 MB in the end (delta: 572.5 MB). Free memory was 125.6 MB in the beginning and 455.2 MB in the end (delta: -329.6 MB). Peak memory consumption was 244.3 MB. Max. memory is 8.0 GB. [2020-10-28 16:41:48,227 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 151.0 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 16:41:48,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.16 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 103.6 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-28 16:41:48,228 INFO L168 Benchmark]: Boogie Preprocessor took 137.33 ms. Allocated memory is still 151.0 MB. Free memory was 103.6 MB in the beginning and 99.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:41:48,229 INFO L168 Benchmark]: RCFGBuilder took 1535.36 ms. Allocated memory is still 151.0 MB. Free memory was 99.6 MB in the beginning and 50.9 MB in the end (delta: 48.8 MB). Peak memory consumption was 49.4 MB. Max. memory is 8.0 GB. [2020-10-28 16:41:48,230 INFO L168 Benchmark]: TraceAbstraction took 60479.48 ms. Allocated memory was 151.0 MB in the beginning and 723.5 MB in the end (delta: 572.5 MB). Free memory was 50.3 MB in the beginning and 455.2 MB in the end (delta: -404.9 MB). Peak memory consumption was 167.6 MB. Max. memory is 8.0 GB. [2020-10-28 16:41:48,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 151.0 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 663.16 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 103.6 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 137.33 ms. Allocated memory is still 151.0 MB. Free memory was 103.6 MB in the beginning and 99.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1535.36 ms. Allocated memory is still 151.0 MB. Free memory was 99.6 MB in the beginning and 50.9 MB in the end (delta: 48.8 MB). Peak memory consumption was 49.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 60479.48 ms. Allocated memory was 151.0 MB in the beginning and 723.5 MB in the end (delta: 572.5 MB). Free memory was 50.3 MB in the beginning and 455.2 MB in the end (delta: -404.9 MB). Peak memory consumption was 167.6 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; [L452] int waterLevel = 1; [L453] int methaneLevelCritical = 0; [L619] int pumpRunning = 0; [L620] int systemActive = 1; [L850] int cleanupTimeShifts = 4; [L923] int retValue_acc ; [L924] int tmp ; [L928] FCALL select_helpers() [L929] FCALL select_features() [L930] CALL, EXPR valid_product() [L841] int retValue_acc ; [L844] retValue_acc = 1 [L845] return (retValue_acc); [L930] RET, EXPR valid_product() [L930] tmp = valid_product() [L932] COND TRUE \read(tmp) [L934] FCALL setup() [L935] CALL runTest() [L917] CALL test() [L550] int splverifierCounter ; [L551] int tmp ; [L552] int tmp___0 ; [L553] int tmp___1 ; [L554] int tmp___2 ; [L557] splverifierCounter = 0 [L559] COND TRUE 1 [L561] COND TRUE splverifierCounter < 4 [L567] tmp = __VERIFIER_nondet_int() [L569] COND TRUE \read(tmp) [L571] CALL waterRise() [L470] COND TRUE waterLevel < 2 [L471] waterLevel = waterLevel + 1 [L571] RET waterRise() [L577] tmp___0 = __VERIFIER_nondet_int() [L579] COND TRUE \read(tmp___0) [L581] CALL changeMethaneLevel() [L482] COND FALSE !(\read(methaneLevelCritical)) [L485] methaneLevelCritical = 1 [L581] RET changeMethaneLevel() [L587] tmp___2 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___2) [L604] CALL timeShift() [L626] COND FALSE !(\read(pumpRunning)) [L633] COND TRUE \read(systemActive) [L635] CALL processEnvironment() [L681] int tmp ; [L684] COND FALSE !(\read(pumpRunning)) [L699] CALL processEnvironment__wrappee__highWaterSensor() [L655] int tmp ; [L658] COND TRUE ! pumpRunning [L660] CALL, EXPR isHighWaterLevel() [L778] int retValue_acc ; [L779] int tmp ; [L780] int tmp___0 ; [L784] CALL, EXPR isHighWaterSensorDry() [L532] int retValue_acc ; [L535] COND FALSE !(waterLevel < 2) [L539] retValue_acc = 0 [L540] return (retValue_acc); [L784] RET, EXPR isHighWaterSensorDry() [L784] tmp = isHighWaterSensorDry() [L786] COND FALSE !(\read(tmp)) [L789] tmp___0 = 1 [L791] retValue_acc = tmp___0 [L792] return (retValue_acc); [L660] RET, EXPR isHighWaterLevel() [L660] tmp = isHighWaterLevel() [L662] COND TRUE \read(tmp) [L664] CALL activatePump() [L709] pumpRunning = 1 [L664] RET activatePump() [L699] RET processEnvironment__wrappee__highWaterSensor() [L635] RET processEnvironment() [L641] CALL __utac_acc__Specification1_spec__1() [L412] int tmp ; [L413] int tmp___0 ; [L417] CALL, EXPR isMethaneLevelCritical() [L491] int retValue_acc ; [L494] retValue_acc = methaneLevelCritical [L495] return (retValue_acc); [L417] RET, EXPR isMethaneLevelCritical() [L417] tmp = isMethaneLevelCritical() [L419] COND TRUE \read(tmp) [L421] CALL, EXPR isPumpRunning() [L733] int retValue_acc ; [L736] retValue_acc = pumpRunning [L737] return (retValue_acc); [L421] RET, EXPR isPumpRunning() [L421] tmp___0 = isPumpRunning() [L423] COND TRUE \read(tmp___0) [L425] CALL __automaton_fail() [L441] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product39.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 243 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 60.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 29.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1006 SDtfs, 1655 SDslu, 885 SDs, 0 SdLazy, 3924 SolverSat, 1071 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 12.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1828occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 671 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 28.7s InterpolantComputationTime, 617 NumberOfCodeBlocks, 617 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 521 ConstructedInterpolants, 0 QuantifiedInterpolants, 165400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...