/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:24:51,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:24:51,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:24:51,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:24:51,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:24:51,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:24:51,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:24:51,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:24:51,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:24:51,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:24:51,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:24:51,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:24:51,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:24:51,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:24:51,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:24:51,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:24:51,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:24:51,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:24:51,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:24:51,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:24:51,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:24:51,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:24:51,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:24:51,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:24:51,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:24:51,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:24:51,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:24:51,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:24:51,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:24:51,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:24:51,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:24:51,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:24:51,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:24:51,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:24:51,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:24:51,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:24:51,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:24:51,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:24:51,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:24:51,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:24:51,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:24:51,834 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 11:24:51,861 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:24:51,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:24:51,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:24:51,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:24:51,864 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:24:51,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:24:51,864 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:24:51,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:24:51,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:24:51,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:24:51,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:24:51,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:24:51,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:24:51,866 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:24:51,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:24:51,866 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:24:51,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:24:51,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:24:51,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:24:51,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:24:51,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:24:51,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:24:51,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:24:51,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:24:51,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:24:51,869 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:24:51,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:24:51,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:24:51,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:24:51,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:24:52,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:24:52,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:24:52,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:24:52,287 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:24:52,288 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:24:52,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2020-10-29 11:24:52,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91237b602/2fb6edddfdef4a4082b601cdacbcb2dd/FLAG005543af1 [2020-10-29 11:24:53,145 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:24:53,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2020-10-29 11:24:53,163 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91237b602/2fb6edddfdef4a4082b601cdacbcb2dd/FLAG005543af1 [2020-10-29 11:24:53,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91237b602/2fb6edddfdef4a4082b601cdacbcb2dd [2020-10-29 11:24:53,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:24:53,439 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:24:53,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:24:53,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:24:53,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:24:53,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:24:53" (1/1) ... [2020-10-29 11:24:53,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17946316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:24:53, skipping insertion in model container [2020-10-29 11:24:53,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:24:53" (1/1) ... [2020-10-29 11:24:53,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:24:53,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:24:53,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:24:53,826 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:24:53,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:24:53,972 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:24:53,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:24:53 WrapperNode [2020-10-29 11:24:53,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:24:53,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:24:53,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:24:53,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:24:53,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:24:53" (1/1) ... [2020-10-29 11:24:53,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:24:53" (1/1) ... [2020-10-29 11:24:54,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:24:53" (1/1) ... [2020-10-29 11:24:54,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:24:53" (1/1) ... [2020-10-29 11:24:54,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:24:53" (1/1) ... [2020-10-29 11:24:54,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:24:53" (1/1) ... [2020-10-29 11:24:54,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:24:53" (1/1) ... [2020-10-29 11:24:54,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:24:54,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:24:54,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:24:54,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:24:54,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:24:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:24:54,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:24:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:24:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:24:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:24:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:24:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:24:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:24:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:24:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:24:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:24:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:24:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:24:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:24:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:24:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:24:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:24:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:24:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:24:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:24:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:24:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:24:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:24:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-29 11:24:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:24:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:24:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-29 11:24:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:24:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:24:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:24:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:24:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:24:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:24:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-29 11:24:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-29 11:24:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-29 11:24:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:24:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:24:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:24:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:24:54,233 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:24:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:24:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:24:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:24:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:24:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:24:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:24:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:24:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:24:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:24:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:24:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:24:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:24:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:24:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:24:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:24:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:24:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:24:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:24:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:24:54,238 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:24:54,238 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:24:54,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:24:54,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:24:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:24:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:24:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:24:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:24:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:24:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:24:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:24:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:24:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:24:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:24:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:24:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:24:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:24:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:24:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:24:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-29 11:24:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-29 11:24:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:24:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:24:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:24:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-29 11:24:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:24:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-29 11:24:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-29 11:24:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:24:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:24:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:24:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:24:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:24:55,868 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:24:55,868 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:24:55,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:24:55 BoogieIcfgContainer [2020-10-29 11:24:55,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:24:55,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:24:55,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:24:55,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:24:55,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:24:53" (1/3) ... [2020-10-29 11:24:55,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3392ab24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:24:55, skipping insertion in model container [2020-10-29 11:24:55,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:24:53" (2/3) ... [2020-10-29 11:24:55,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3392ab24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:24:55, skipping insertion in model container [2020-10-29 11:24:55,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:24:55" (3/3) ... [2020-10-29 11:24:55,880 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2020-10-29 11:24:55,892 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:24:55,898 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:24:55,911 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:24:55,939 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:24:55,939 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:24:55,939 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:24:55,940 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:24:55,940 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:24:55,940 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:24:55,940 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:24:55,940 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:24:55,962 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states. [2020-10-29 11:24:55,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-29 11:24:55,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:24:55,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 11:24:55,973 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:24:55,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:24:55,979 INFO L82 PathProgramCache]: Analyzing trace with hash -2053877318, now seen corresponding path program 1 times [2020-10-29 11:24:55,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:24:55,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102114268] [2020-10-29 11:24:55,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:24:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:24:56,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:24:56,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:24:56,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:24:58,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:24:58,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:01,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:01,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-29 11:25:01,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 11:25:01,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 11:25:01,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:01,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:01,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 11:25:01,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:01,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:25:01,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 11:25:01,986 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:01,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:02,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:02,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:02,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:02,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:02,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 11:25:02,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:02,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:02,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:02,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:02,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:25:02,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:02,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:02,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:02,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:02,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:02,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:02,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:02,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:02,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:02,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:02,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:02,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:02,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:02,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:02,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:02,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:02,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:02,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:02,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:02,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:02,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:02,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:02,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:02,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:02,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:02,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:02,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:02,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:02,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:02,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:02,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:02,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:02,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:02,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:02,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:02,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:02,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:02,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:02,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:02,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:02,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:02,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:02,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:02,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:02,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:02,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:02,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:02,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:02,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:02,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:25:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:02,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:02,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:02,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:02,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:02,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:02,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:02,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:02,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:02,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:25:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:02,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:02,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:02,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:02,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:02,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:02,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:02,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:02,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:02,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:02,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1102114268] [2020-10-29 11:25:02,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:02,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:25:02,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525916603] [2020-10-29 11:25:02,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:25:02,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:02,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:25:02,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:25:02,214 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 4 states. [2020-10-29 11:25:03,019 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:04,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:04,939 INFO L93 Difference]: Finished difference Result 263 states and 347 transitions. [2020-10-29 11:25:04,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:25:04,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-29 11:25:04,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:04,955 INFO L225 Difference]: With dead ends: 263 [2020-10-29 11:25:04,955 INFO L226 Difference]: Without dead ends: 141 [2020-10-29 11:25:04,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:25:04,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-10-29 11:25:05,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 110. [2020-10-29 11:25:05,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-29 11:25:05,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 127 transitions. [2020-10-29 11:25:05,068 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 127 transitions. Word has length 47 [2020-10-29 11:25:05,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:05,069 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 127 transitions. [2020-10-29 11:25:05,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:25:05,069 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 127 transitions. [2020-10-29 11:25:05,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-29 11:25:05,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:05,073 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] [2020-10-29 11:25:05,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:25:05,073 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:25:05,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:05,074 INFO L82 PathProgramCache]: Analyzing trace with hash 862107569, now seen corresponding path program 1 times [2020-10-29 11:25:05,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:05,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047410710] [2020-10-29 11:25:05,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:05,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:05,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:05,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:06,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:10,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:10,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 11:25:10,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:25:10,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-29 11:25:10,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:10,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:10,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 11:25:10,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:10,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 11:25:10,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:10,970 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:10,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:11,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:11,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:11,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:11,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:11,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 11:25:11,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:11,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:11,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:11,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:25:11,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:11,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:11,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:11,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:11,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:11,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:11,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:11,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:11,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:11,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:11,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:11,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:11,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:11,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:11,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:11,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:11,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:11,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:11,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:11,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:11,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:11,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:11,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:11,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:11,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:11,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:11,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:11,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:11,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:11,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:11,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:11,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:11,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:11,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:11,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:11,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:11,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:11,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:11,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:11,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:11,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:11,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:11,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:11,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:11,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:11,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:11,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:11,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:11,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:11,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 11:25:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:11,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:11,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:11,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:25:11,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:11,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:25:11,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:11,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:11,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:11,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:11,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 11:25:11,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:11,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:11,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:11,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:11,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:11,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:11,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:11,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:11,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:11,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:11,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:11,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:11,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:11,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 11:25:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:11,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:11,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:11,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:11,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:11,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:25:11,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:11,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:11,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:11,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:11,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:11,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:11,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 11:25:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:11,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:11,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:11,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:11,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:11,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:11,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:11,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:11,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:11,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:11,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:11,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:11,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:11,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047410710] [2020-10-29 11:25:11,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:11,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:25:11,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299002300] [2020-10-29 11:25:11,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:25:11,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:11,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:25:11,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:25:11,255 INFO L87 Difference]: Start difference. First operand 110 states and 127 transitions. Second operand 8 states. [2020-10-29 11:25:12,280 WARN L193 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:15,243 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 211 DAG size of output: 206 [2020-10-29 11:25:16,114 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:16,991 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:25:18,072 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-29 11:25:19,082 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:21,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:21,767 INFO L93 Difference]: Finished difference Result 368 states and 500 transitions. [2020-10-29 11:25:21,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 11:25:21,769 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2020-10-29 11:25:21,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:21,774 INFO L225 Difference]: With dead ends: 368 [2020-10-29 11:25:21,774 INFO L226 Difference]: Without dead ends: 259 [2020-10-29 11:25:21,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-29 11:25:21,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-10-29 11:25:21,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 177. [2020-10-29 11:25:21,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-29 11:25:21,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 207 transitions. [2020-10-29 11:25:21,855 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 207 transitions. Word has length 56 [2020-10-29 11:25:21,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:21,855 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 207 transitions. [2020-10-29 11:25:21,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:25:21,855 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 207 transitions. [2020-10-29 11:25:21,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-29 11:25:21,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:21,859 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] [2020-10-29 11:25:21,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:25:21,859 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:25:21,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:21,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1622354057, now seen corresponding path program 1 times [2020-10-29 11:25:21,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:21,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662579398] [2020-10-29 11:25:21,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:21,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:21,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:22,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:23,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:24,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:24,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 11:25:24,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 11:25:24,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2991 [2020-10-29 11:25:24,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:24,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:24,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 11:25:24,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:24,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 11:25:24,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:25,652 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:25,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:25,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:25,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:25,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:25,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:25,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 11:25:25,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:25,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:25,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:25,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:25,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:25:25,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:25,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:25,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:25,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:25,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:25,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:25,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:25,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:25,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:25,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:25,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:25,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:25,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:25,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:25,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:25,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:25,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:25,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:25,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:25,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:25,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:25,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:25,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:25,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:25,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:25,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:25,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:25,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:25,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:25,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:25,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:25,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:25,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:25,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:25,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:25,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:25,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:25,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:25,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:25,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:25,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:25,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:25,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:25,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:25,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:25,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:25:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:25,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:25,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:25,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:25,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:25,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:25,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:25,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:25,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:25,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:25,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:25,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:25,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:25:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:25,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:25,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:25,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:25,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:25:25,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:25:25,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 11:25:25,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:25,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:25,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:25,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 11:25:25,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 11:25:25,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:25,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:25,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:25,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:25,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:25,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:25,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:25,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:25,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:25,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:25,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 11:25:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:25,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:25,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:25,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:25,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:25,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:25,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:25,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:25,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:25,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:25,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:25,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:25,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 11:25:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:25,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:25,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:25,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:25,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:25,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:25:25,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:25,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:25,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:25,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:25,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:25,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:25,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:25,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662579398] [2020-10-29 11:25:25,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:25,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 11:25:25,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255980118] [2020-10-29 11:25:25,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 11:25:25,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:25,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 11:25:25,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-29 11:25:25,909 INFO L87 Difference]: Start difference. First operand 177 states and 207 transitions. Second operand 9 states. [2020-10-29 11:25:26,824 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:29,202 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:29,950 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:30,819 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:31,634 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:32,420 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:25:35,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:35,563 INFO L93 Difference]: Finished difference Result 575 states and 786 transitions. [2020-10-29 11:25:35,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 11:25:35,565 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-10-29 11:25:35,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:35,571 INFO L225 Difference]: With dead ends: 575 [2020-10-29 11:25:35,572 INFO L226 Difference]: Without dead ends: 422 [2020-10-29 11:25:35,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-10-29 11:25:35,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-10-29 11:25:35,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 302. [2020-10-29 11:25:35,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-10-29 11:25:35,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 372 transitions. [2020-10-29 11:25:35,693 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 372 transitions. Word has length 65 [2020-10-29 11:25:35,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:35,694 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 372 transitions. [2020-10-29 11:25:35,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 11:25:35,694 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 372 transitions. [2020-10-29 11:25:35,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-29 11:25:35,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:35,698 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] [2020-10-29 11:25:35,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:25:35,698 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:25:35,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:35,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1077149811, now seen corresponding path program 1 times [2020-10-29 11:25:35,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:35,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68010948] [2020-10-29 11:25:35,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:35,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:36,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:36,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 11:25:36,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:36,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-29 11:25:36,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:36,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:36,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:25:36,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-29 11:25:36,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:25:36,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:36,802 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:36,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:36,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:36,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:36,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:36,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:36,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 11:25:36,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:36,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:36,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:36,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:36,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:36,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:36,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:36,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:36,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:36,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:36,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:36,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:36,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:36,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:36,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:36,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:36,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:36,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:36,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:36,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:36,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:36,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:36,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:36,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:36,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:36,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:36,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:36,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:36,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:36,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:36,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:36,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:36,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:36,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:36,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:36,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:36,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:36,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:36,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:36,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:36,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:36,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:36,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:36,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:36,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:36,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:36,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:36,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:36,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:36,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:36,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:36,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:36,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:36,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:36,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:25:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:36,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:36,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:36,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:36,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:36,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:36,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:36,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:36,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:36,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:36,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:36,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:36,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:25:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:36,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:36,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:36,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 11:25:36,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:36,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 11:25:36,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:36,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 11:25:36,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 11:25:36,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 11:25:36,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:36,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:36,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:25:37,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:37,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 11:25:37,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:37,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:37,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 11:25:37,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:37,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:25:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:37,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:25:37,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:37,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:37,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:37,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:37,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:37,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:37,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:25:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:37,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:37,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:37,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:37,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:37,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:37,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:37,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:37,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 11:25:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:37,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:37,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:37,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:37,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:37,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:37,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:37,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:37,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 11:25:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:37,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:37,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:37,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:37,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:37,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:37,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:37,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:37,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:37,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:37,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:37,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:37,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:37,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68010948] [2020-10-29 11:25:37,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:37,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 11:25:37,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844754376] [2020-10-29 11:25:37,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 11:25:37,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:37,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 11:25:37,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-29 11:25:37,112 INFO L87 Difference]: Start difference. First operand 302 states and 372 transitions. Second operand 9 states. [2020-10-29 11:25:39,096 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:39,840 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-29 11:25:40,612 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:41,398 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:25:43,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:43,870 INFO L93 Difference]: Finished difference Result 706 states and 955 transitions. [2020-10-29 11:25:43,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 11:25:43,871 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-10-29 11:25:43,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:43,877 INFO L225 Difference]: With dead ends: 706 [2020-10-29 11:25:43,877 INFO L226 Difference]: Without dead ends: 428 [2020-10-29 11:25:43,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-29 11:25:43,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-10-29 11:25:43,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 312. [2020-10-29 11:25:43,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-10-29 11:25:43,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 382 transitions. [2020-10-29 11:25:43,977 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 382 transitions. Word has length 80 [2020-10-29 11:25:43,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:43,978 INFO L481 AbstractCegarLoop]: Abstraction has 312 states and 382 transitions. [2020-10-29 11:25:43,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 11:25:43,978 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 382 transitions. [2020-10-29 11:25:43,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-29 11:25:43,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:43,982 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] [2020-10-29 11:25:43,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 11:25:43,982 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:25:43,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:43,983 INFO L82 PathProgramCache]: Analyzing trace with hash 309053583, now seen corresponding path program 1 times [2020-10-29 11:25:43,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:43,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1161679] [2020-10-29 11:25:43,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:44,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:44,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:44,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 11:25:44,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:44,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-29 11:25:44,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:44,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:44,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:44,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-29 11:25:44,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:44,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:25:44,965 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:44,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:44,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:45,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:45,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:45,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:45,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 11:25:45,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:45,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:45,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:45,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:45,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:45,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:45,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:45,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:45,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:45,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:45,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:45,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:45,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:45,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:45,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:45,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:45,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:45,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:45,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:45,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:45,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:45,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:45,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:45,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:45,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:45,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:45,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:45,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:45,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:45,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:45,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:45,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:45,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:45,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:45,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:45,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:45,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:45,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:45,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:45,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:45,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:45,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:45,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:45,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:45,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 11:25:45,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:45,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:45,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:45,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:45,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:45,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:45,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:25:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:45,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:45,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:45,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:45,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:45,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:45,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:45,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:45,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:45,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:25:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:45,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:45,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:45,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 11:25:45,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:45,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 11:25:45,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:45,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 11:25:45,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:45,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:45,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:45,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:45,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:45,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:25:45,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:45,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 11:25:45,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:45,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:25:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 11:25:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:45,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:45,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:25:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:45,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:45,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:45,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:25:45,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:45,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:45,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:45,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 11:25:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:45,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:45,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:45,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:25:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:45,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:45,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:45,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:45,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:45,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:45,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:45,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:45,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:45,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:45,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:45,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 11:25:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:45,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:45,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:45,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:45,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:45,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:45,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:45,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:45,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:45,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:45,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:45,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:45,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 11:25:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:45,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:45,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:45,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:45,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:45,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:45,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:45,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:45,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:45,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:45,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:45,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:45,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:45,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1161679] [2020-10-29 11:25:45,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:45,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:25:45,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927649983] [2020-10-29 11:25:45,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:25:45,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:45,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:25:45,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:25:45,209 INFO L87 Difference]: Start difference. First operand 312 states and 382 transitions. Second operand 8 states. [2020-10-29 11:25:47,039 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:25:47,816 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:25:48,551 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 11:25:50,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:25:50,933 INFO L93 Difference]: Finished difference Result 730 states and 1012 transitions. [2020-10-29 11:25:50,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 11:25:50,934 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-29 11:25:50,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:25:50,939 INFO L225 Difference]: With dead ends: 730 [2020-10-29 11:25:50,940 INFO L226 Difference]: Without dead ends: 442 [2020-10-29 11:25:50,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-29 11:25:50,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-29 11:25:51,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 320. [2020-10-29 11:25:51,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-10-29 11:25:51,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 390 transitions. [2020-10-29 11:25:51,031 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 390 transitions. Word has length 80 [2020-10-29 11:25:51,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:25:51,032 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 390 transitions. [2020-10-29 11:25:51,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:25:51,032 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 390 transitions. [2020-10-29 11:25:51,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-29 11:25:51,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:25:51,034 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] [2020-10-29 11:25:51,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 11:25:51,035 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:25:51,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:25:51,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1874623344, now seen corresponding path program 1 times [2020-10-29 11:25:51,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:25:51,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096424567] [2020-10-29 11:25:51,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:25:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:51,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:51,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:51,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 11:25:51,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:51,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 619 [2020-10-29 11:25:51,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:51,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:51,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 11:25:51,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:51,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 11:25:51,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:52,328 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:25:52,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:25:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:52,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:52,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:52,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:52,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:52,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 11:25:52,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:52,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:52,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:52,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:52,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:25:52,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:52,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:25:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:52,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:52,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:52,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:52,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:52,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:52,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:52,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:52,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:52,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:25:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:52,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:52,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:52,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:52,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:52,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:52,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:52,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:52,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:52,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:52,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:52,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:52,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:25:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:52,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:52,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:52,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:52,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:52,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:52,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:52,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:52,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:52,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:52,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:52,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:52,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:25:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:52,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:52,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:52,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:25:52,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:52,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:52,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:52,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:52,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:52,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:52,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:25:52,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:52,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 11:25:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:52,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:52,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:52,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:52,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:52,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:52,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:52,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:52,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:52,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:52,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:52,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:52,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 11:25:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:52,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:52,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:52,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 11:25:52,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:52,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 11:25:52,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:52,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:52,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:52,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 11:25:52,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 11:25:52,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:52,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:25:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:52,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:52,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:52,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 11:25:52,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:52,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 11:25:52,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:52,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:52,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:52,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:52,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 11:25:52,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:52,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-29 11:25:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:52,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:52,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:52,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 11:25:52,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:52,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:25:52,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:52,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:52,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:52,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:52,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 11:25:52,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:52,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 11:25:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:52,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:52,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:52,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:52,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:52,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:52,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:52,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:25:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:25:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:25:52,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:52,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 11:25:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:52,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:52,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:52,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:52,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:52,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:25:52,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:52,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:52,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:52,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:52,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:52,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:52,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 11:25:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:25:52,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:25:52,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:25:52,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:25:52,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:25:52,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:25:52,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:25:52,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:25:52,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:25:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:25:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:25:52,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:25:52,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:25:52,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096424567] [2020-10-29 11:25:52,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:25:52,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 11:25:52,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960703209] [2020-10-29 11:25:52,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 11:25:52,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:25:52,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 11:25:52,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 11:25:52,607 INFO L87 Difference]: Start difference. First operand 320 states and 390 transitions. Second operand 7 states. [2020-10-29 11:25:53,515 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:25:54,713 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:26:00,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:26:00,277 INFO L93 Difference]: Finished difference Result 1120 states and 1556 transitions. [2020-10-29 11:26:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 11:26:00,279 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2020-10-29 11:26:00,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:26:00,286 INFO L225 Difference]: With dead ends: 1120 [2020-10-29 11:26:00,287 INFO L226 Difference]: Without dead ends: 815 [2020-10-29 11:26:00,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-29 11:26:00,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2020-10-29 11:26:00,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 660. [2020-10-29 11:26:00,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2020-10-29 11:26:00,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 828 transitions. [2020-10-29 11:26:00,510 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 828 transitions. Word has length 80 [2020-10-29 11:26:00,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:26:00,510 INFO L481 AbstractCegarLoop]: Abstraction has 660 states and 828 transitions. [2020-10-29 11:26:00,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 11:26:00,511 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 828 transitions. [2020-10-29 11:26:00,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-29 11:26:00,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:26:00,513 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] [2020-10-29 11:26:00,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 11:26:00,513 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:26:00,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:26:00,514 INFO L82 PathProgramCache]: Analyzing trace with hash -2005221462, now seen corresponding path program 1 times [2020-10-29 11:26:00,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:26:00,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924218909] [2020-10-29 11:26:00,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:26:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:26:00,554 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:26:00,555 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:26:00,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 11:26:00,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:26:00 BoogieIcfgContainer [2020-10-29 11:26:00,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:26:00,586 INFO L168 Benchmark]: Toolchain (without parser) took 67152.27 ms. Allocated memory was 155.2 MB in the beginning and 429.9 MB in the end (delta: 274.7 MB). Free memory was 129.6 MB in the beginning and 343.6 MB in the end (delta: -213.9 MB). Peak memory consumption was 61.2 MB. Max. memory is 8.0 GB. [2020-10-29 11:26:00,587 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 155.2 MB. Free memory was 127.6 MB in the beginning and 127.5 MB in the end (delta: 85.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:26:00,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.42 ms. Allocated memory is still 155.2 MB. Free memory was 129.1 MB in the beginning and 108.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-29 11:26:00,589 INFO L168 Benchmark]: Boogie Preprocessor took 128.00 ms. Allocated memory is still 155.2 MB. Free memory was 107.8 MB in the beginning and 136.7 MB in the end (delta: -28.9 MB). Peak memory consumption was 6.8 MB. Max. memory is 8.0 GB. [2020-10-29 11:26:00,589 INFO L168 Benchmark]: RCFGBuilder took 1768.03 ms. Allocated memory is still 155.2 MB. Free memory was 136.7 MB in the beginning and 133.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 89.1 MB. Max. memory is 8.0 GB. [2020-10-29 11:26:00,590 INFO L168 Benchmark]: TraceAbstraction took 64711.64 ms. Allocated memory was 155.2 MB in the beginning and 429.9 MB in the end (delta: 274.7 MB). Free memory was 132.7 MB in the beginning and 343.6 MB in the end (delta: -210.8 MB). Peak memory consumption was 63.4 MB. Max. memory is 8.0 GB. [2020-10-29 11:26:00,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 155.2 MB. Free memory was 127.6 MB in the beginning and 127.5 MB in the end (delta: 85.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 531.42 ms. Allocated memory is still 155.2 MB. Free memory was 129.1 MB in the beginning and 108.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 128.00 ms. Allocated memory is still 155.2 MB. Free memory was 107.8 MB in the beginning and 136.7 MB in the end (delta: -28.9 MB). Peak memory consumption was 6.8 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1768.03 ms. Allocated memory is still 155.2 MB. Free memory was 136.7 MB in the beginning and 133.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 89.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 64711.64 ms. Allocated memory was 155.2 MB in the beginning and 429.9 MB in the end (delta: 274.7 MB). Free memory was 132.7 MB in the beginning and 343.6 MB in the end (delta: -210.8 MB). Peak memory consumption was 63.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L526] int waterLevel = 1; [L527] int methaneLevelCritical = 0; [L691] int pumpRunning = 0; [L692] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L904] int retValue_acc ; [L907] retValue_acc = 1 [L908] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L622] int splverifierCounter ; [L623] int tmp ; [L624] int tmp___0 ; [L625] int tmp___1 ; [L626] int tmp___2 ; [L629] splverifierCounter = 0 [L631] COND TRUE 1 [L633] COND TRUE splverifierCounter < 4 [L639] tmp = __VERIFIER_nondet_int() [L641] COND TRUE \read(tmp) [L643] CALL waterRise() [L544] COND TRUE waterLevel < 2 [L545] waterLevel = waterLevel + 1 [L643] RET waterRise() [L649] tmp___0 = __VERIFIER_nondet_int() [L651] COND TRUE \read(tmp___0) [L653] CALL changeMethaneLevel() [L556] COND FALSE !(\read(methaneLevelCritical)) [L559] methaneLevelCritical = 1 [L653] RET changeMethaneLevel() [L659] tmp___2 = __VERIFIER_nondet_int() [L661] COND FALSE !(\read(tmp___2)) [L667] tmp___1 = __VERIFIER_nondet_int() [L669] COND FALSE !(\read(tmp___1)) [L676] CALL timeShift() [L699] COND FALSE !(\read(pumpRunning)) [L706] COND TRUE \read(systemActive) [L708] CALL processEnvironment() [L728] int tmp ; [L731] COND TRUE ! pumpRunning [L733] CALL, EXPR isHighWaterLevel() [L825] int retValue_acc ; [L826] int tmp ; [L827] int tmp___0 ; [L831] CALL, EXPR isHighWaterSensorDry() [L606] int retValue_acc ; [L609] COND FALSE !(waterLevel < 2) [L613] retValue_acc = 0 [L614] return (retValue_acc); [L831] RET, EXPR isHighWaterSensorDry() [L831] tmp = isHighWaterSensorDry() [L833] COND FALSE !(\read(tmp)) [L836] tmp___0 = 1 [L838] retValue_acc = tmp___0 [L839] return (retValue_acc); [L733] RET, EXPR isHighWaterLevel() [L733] tmp = isHighWaterLevel() [L735] COND TRUE \read(tmp) [L737] CALL activatePump() [L756] pumpRunning = 1 [L737] RET activatePump() [L708] RET processEnvironment() [L714] CALL __utac_acc__Specification1_spec__1() [L853] int tmp ; [L854] int tmp___0 ; [L858] CALL, EXPR isMethaneLevelCritical() [L565] int retValue_acc ; [L568] retValue_acc = methaneLevelCritical [L569] return (retValue_acc); [L858] RET, EXPR isMethaneLevelCritical() [L858] tmp = isMethaneLevelCritical() [L860] COND TRUE \read(tmp) [L862] CALL, EXPR isPumpRunning() [L780] int retValue_acc ; [L783] retValue_acc = pumpRunning [L784] return (retValue_acc); [L862] RET, EXPR isPumpRunning() [L862] tmp___0 = isPumpRunning() [L864] COND TRUE \read(tmp___0) [L866] CALL __automaton_fail() [L516] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product34.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 231 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 64.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 43.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 666 SDtfs, 1406 SDslu, 730 SDs, 0 SdLazy, 3638 SolverSat, 963 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 144 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 21.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=660occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 626 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 20.0s InterpolantComputationTime, 492 NumberOfCodeBlocks, 492 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 402 ConstructedInterpolants, 0 QuantifiedInterpolants, 131000 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...