/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 21:58:31,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 21:58:31,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 21:58:32,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 21:58:32,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 21:58:32,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 21:58:32,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 21:58:32,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 21:58:32,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 21:58:32,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 21:58:32,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 21:58:32,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 21:58:32,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 21:58:32,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 21:58:32,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 21:58:32,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 21:58:32,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 21:58:32,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 21:58:32,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 21:58:32,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 21:58:32,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 21:58:32,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 21:58:32,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 21:58:32,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 21:58:32,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 21:58:32,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 21:58:32,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 21:58:32,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 21:58:32,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 21:58:32,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 21:58:32,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 21:58:32,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 21:58:32,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 21:58:32,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 21:58:32,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 21:58:32,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 21:58:32,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 21:58:32,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 21:58:32,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 21:58:32,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 21:58:32,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 21:58:32,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 21:58:32,160 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 21:58:32,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 21:58:32,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 21:58:32,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 21:58:32,163 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 21:58:32,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 21:58:32,164 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 21:58:32,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 21:58:32,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 21:58:32,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 21:58:32,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 21:58:32,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 21:58:32,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 21:58:32,166 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 21:58:32,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 21:58:32,167 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 21:58:32,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 21:58:32,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 21:58:32,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 21:58:32,168 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 21:58:32,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 21:58:32,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 21:58:32,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 21:58:32,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 21:58:32,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 21:58:32,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 21:58:32,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 21:58:32,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 21:58:32,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 21:58:32,171 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 21:58:32,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 21:58:32,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 21:58:32,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 21:58:32,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 21:58:32,658 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 21:58:32,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-10-27 21:58:32,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad8b7f0a6/b85d2c9c55a04866a02aa7d3aa124c21/FLAGb67a66f44 [2020-10-27 21:58:33,464 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 21:58:33,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-10-27 21:58:33,488 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad8b7f0a6/b85d2c9c55a04866a02aa7d3aa124c21/FLAGb67a66f44 [2020-10-27 21:58:33,772 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad8b7f0a6/b85d2c9c55a04866a02aa7d3aa124c21 [2020-10-27 21:58:33,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 21:58:33,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 21:58:33,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 21:58:33,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 21:58:33,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 21:58:33,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 09:58:33" (1/1) ... [2020-10-27 21:58:33,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4901c8b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:33, skipping insertion in model container [2020-10-27 21:58:33,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 09:58:33" (1/1) ... [2020-10-27 21:58:33,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 21:58:33,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 21:58:34,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 21:58:34,267 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 21:58:34,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 21:58:34,476 INFO L208 MainTranslator]: Completed translation [2020-10-27 21:58:34,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:34 WrapperNode [2020-10-27 21:58:34,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 21:58:34,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 21:58:34,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 21:58:34,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 21:58:34,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:34" (1/1) ... [2020-10-27 21:58:34,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:34" (1/1) ... [2020-10-27 21:58:34,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:34" (1/1) ... [2020-10-27 21:58:34,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:34" (1/1) ... [2020-10-27 21:58:34,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:34" (1/1) ... [2020-10-27 21:58:34,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:34" (1/1) ... [2020-10-27 21:58:34,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:34" (1/1) ... [2020-10-27 21:58:34,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 21:58:34,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 21:58:34,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 21:58:34,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 21:58:34,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 21:58:34,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 21:58:34,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 21:58:34,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 21:58:34,696 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 21:58:34,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 21:58:34,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 21:58:34,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 21:58:34,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 21:58:34,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 21:58:34,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 21:58:34,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 21:58:34,697 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 21:58:34,697 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 21:58:34,697 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 21:58:34,698 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 21:58:34,698 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 21:58:34,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 21:58:34,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 21:58:34,698 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 21:58:34,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 21:58:34,699 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 21:58:34,699 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 21:58:34,699 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 21:58:34,699 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 21:58:34,699 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 21:58:34,699 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 21:58:34,700 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 21:58:34,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 21:58:34,700 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 21:58:34,700 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 21:58:34,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-27 21:58:34,700 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 21:58:34,700 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 21:58:34,701 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 21:58:34,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 21:58:34,701 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 21:58:34,701 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 21:58:34,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 21:58:34,701 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 21:58:34,702 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 21:58:34,702 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 21:58:34,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 21:58:34,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 21:58:34,702 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 21:58:34,702 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 21:58:34,702 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 21:58:34,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 21:58:34,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 21:58:34,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 21:58:34,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 21:58:34,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 21:58:34,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 21:58:34,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 21:58:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 21:58:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 21:58:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 21:58:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 21:58:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 21:58:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 21:58:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 21:58:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 21:58:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 21:58:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 21:58:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 21:58:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 21:58:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 21:58:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 21:58:34,706 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 21:58:34,706 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 21:58:34,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-27 21:58:34,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 21:58:34,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 21:58:34,706 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 21:58:34,707 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 21:58:34,707 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 21:58:34,707 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 21:58:34,707 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 21:58:34,707 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 21:58:34,707 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 21:58:34,707 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 21:58:34,708 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 21:58:34,708 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 21:58:34,708 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 21:58:34,708 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 21:58:34,708 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 21:58:34,708 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 21:58:34,708 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 21:58:34,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 21:58:34,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 21:58:34,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 21:58:35,936 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 21:58:35,936 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 21:58:35,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 09:58:35 BoogieIcfgContainer [2020-10-27 21:58:35,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 21:58:35,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 21:58:35,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 21:58:35,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 21:58:35,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 09:58:33" (1/3) ... [2020-10-27 21:58:35,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447f4d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 09:58:35, skipping insertion in model container [2020-10-27 21:58:35,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:58:34" (2/3) ... [2020-10-27 21:58:35,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447f4d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 09:58:35, skipping insertion in model container [2020-10-27 21:58:35,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 09:58:35" (3/3) ... [2020-10-27 21:58:35,952 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2020-10-27 21:58:35,965 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 21:58:35,970 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 21:58:35,983 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 21:58:36,011 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 21:58:36,011 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 21:58:36,012 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 21:58:36,012 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 21:58:36,012 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 21:58:36,012 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 21:58:36,012 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 21:58:36,012 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 21:58:36,035 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-10-27 21:58:36,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-27 21:58:36,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:58:36,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 21:58:36,045 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:58:36,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:58:36,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1173743397, now seen corresponding path program 1 times [2020-10-27 21:58:36,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:58:36,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498486764] [2020-10-27 21:58:36,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:58:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:36,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:36,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:36,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:38,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:38,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:41,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:41,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-27 21:58:41,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 21:58:41,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 21:58:41,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:41,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:58:41,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-27 21:58:41,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 21:58:41,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 21:58:41,864 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:58:41,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:58:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:41,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:41,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:41,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:58:41,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:41,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 21:58:41,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:41,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:41,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:41,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:41,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:41,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:58:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:41,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:41,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:41,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:58:41,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:41,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:58:41,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:41,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:41,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:41,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:41,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:41,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:58:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:41,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:41,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:41,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:58:41,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:41,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:58:41,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:41,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:41,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:41,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:41,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:41,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:58:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:41,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:41,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:41,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:58:41,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:41,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:58:41,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:41,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:41,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:41,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:41,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:41,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:58:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:42,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:42,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:42,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:58:42,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:42,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:58:42,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:42,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:42,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:42,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:42,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:42,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 21:58:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:42,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:42,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:42,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:58:42,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:42,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 21:58:42,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:42,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:58:42,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:42,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:58:42,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:42,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 21:58:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:42,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:42,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:42,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:58:42,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:42,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 21:58:42,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:58:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:42,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:58:42,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:42,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 21:58:42,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498486764] [2020-10-27 21:58:42,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:58:42,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 21:58:42,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997606185] [2020-10-27 21:58:42,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 21:58:42,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:58:42,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 21:58:42,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 21:58:42,115 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 7 states. [2020-10-27 21:58:42,720 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:58:43,934 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 21:58:44,420 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 21:58:44,843 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 21:58:45,667 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:58:46,156 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 21:58:47,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:58:47,369 INFO L93 Difference]: Finished difference Result 336 states and 469 transitions. [2020-10-27 21:58:47,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 21:58:47,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2020-10-27 21:58:47,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:58:47,387 INFO L225 Difference]: With dead ends: 336 [2020-10-27 21:58:47,387 INFO L226 Difference]: Without dead ends: 205 [2020-10-27 21:58:47,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-27 21:58:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-27 21:58:47,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 172. [2020-10-27 21:58:47,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-27 21:58:47,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 218 transitions. [2020-10-27 21:58:47,543 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 218 transitions. Word has length 47 [2020-10-27 21:58:47,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:58:47,544 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 218 transitions. [2020-10-27 21:58:47,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 21:58:47,544 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 218 transitions. [2020-10-27 21:58:47,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-27 21:58:47,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:58:47,557 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] [2020-10-27 21:58:47,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 21:58:47,561 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:58:47,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:58:47,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1503286228, now seen corresponding path program 1 times [2020-10-27 21:58:47,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:58:47,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884166297] [2020-10-27 21:58:47,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:58:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:47,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:47,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:47,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:52,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:52,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 21:58:52,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 21:58:52,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 21:58:52,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:52,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:58:52,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-27 21:58:52,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 21:58:52,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:52,986 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:58:52,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:58:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:53,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:53,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:53,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:58:53,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:53,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 21:58:53,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:53,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:53,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:53,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:53,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:53,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:58:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:53,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:53,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:53,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:58:53,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:53,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:58:53,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:53,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:53,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:53,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:53,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:53,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:58:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:53,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:53,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:53,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:58:53,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:53,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:58:53,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:53,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:53,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:53,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:53,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:53,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:58:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:53,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:53,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:53,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:58:53,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:53,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:58:53,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:53,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:53,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:53,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:53,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:53,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:58:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:53,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:53,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:53,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:58:53,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:53,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:58:53,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:53,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:53,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:53,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:53,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:53,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 21:58:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:53,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:53,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:53,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:58:53,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:53,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 21:58:53,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:53,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:58:53,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 21:58:53,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 21:58:53,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:53,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:58:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:53,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:53,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:53,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 21:58:53,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:53,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 21:58:53,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:53,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:58:53,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:53,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 21:58:53,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:53,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:58:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:53,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:53,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:53,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:58:53,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:53,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:58:53,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:53,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:58:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:53,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:53,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 21:58:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:53,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:53,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:53,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:58:53,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:53,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:58:53,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:53,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:58:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:53,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:53,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 21:58:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:53,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:53,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:53,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:58:53,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:53,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:58:53,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:53,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:53,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:58:53,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:53,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 21:58:53,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 21:58:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:53,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:53,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:58:53,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:58:53,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:58:53,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:58:53,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:58:53,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:58:53,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:58:53,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:58:53,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:58:53,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 21:58:53,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884166297] [2020-10-27 21:58:53,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:58:53,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 21:58:53,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938445502] [2020-10-27 21:58:53,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 21:58:53,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:58:53,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 21:58:53,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 21:58:53,236 INFO L87 Difference]: Start difference. First operand 172 states and 218 transitions. Second operand 8 states. [2020-10-27 21:58:54,572 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:58:55,021 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 21:58:55,428 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:58:55,817 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:58:56,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:58:56,657 INFO L93 Difference]: Finished difference Result 381 states and 526 transitions. [2020-10-27 21:58:56,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 21:58:56,657 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2020-10-27 21:58:56,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:58:56,667 INFO L225 Difference]: With dead ends: 381 [2020-10-27 21:58:56,667 INFO L226 Difference]: Without dead ends: 233 [2020-10-27 21:58:56,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-27 21:58:56,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-27 21:58:56,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 177. [2020-10-27 21:58:56,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-27 21:58:56,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 223 transitions. [2020-10-27 21:58:56,780 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 223 transitions. Word has length 71 [2020-10-27 21:58:56,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:58:56,782 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 223 transitions. [2020-10-27 21:58:56,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 21:58:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 223 transitions. [2020-10-27 21:58:56,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-27 21:58:56,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:58:56,792 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] [2020-10-27 21:58:56,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 21:58:56,793 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:58:56,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:58:56,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1405477674, now seen corresponding path program 1 times [2020-10-27 21:58:56,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:58:56,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010247379] [2020-10-27 21:58:56,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:58:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:58:56,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:56,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:58:57,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:00,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:00,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-27 21:59:00,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 21:59:00,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4070 [2020-10-27 21:59:00,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:00,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:00,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-27 21:59:00,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:00,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 21:59:01,260 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:59:01,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:59:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:01,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:01,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:01,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:01,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:01,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 21:59:01,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:01,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:01,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:01,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:01,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:01,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:59:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:01,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:01,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:01,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:01,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:01,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:01,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:01,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:01,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:01,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:01,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:01,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:59:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:01,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:01,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:01,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:01,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:01,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:59:01,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:01,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:01,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:01,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:01,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:01,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:59:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:01,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:01,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:01,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:01,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:01,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:59:01,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:01,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:01,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:01,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 21:59:01,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:59:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:01,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:01,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:01,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:01,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:01,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:59:01,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:01,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:01,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:01,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:01,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:01,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 21:59:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:01,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:01,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:01,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:59:01,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:01,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 21:59:01,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:01,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:01,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 21:59:01,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:01,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:01,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:01,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:01,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:01,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 21:59:01,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:01,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 21:59:01,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 21:59:01,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:01,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:01,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:01,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:01,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:01,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:59:01,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:01,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 21:59:01,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:01,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 21:59:01,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:01,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:01,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:01,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 21:59:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:01,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:01,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:01,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:01,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:01,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:01,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:01,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:01,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 21:59:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:01,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:01,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:01,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:01,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:01,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:01,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:01,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:01,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:01,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:01,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:01,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 21:59:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:01,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:01,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:01,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:01,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:01,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:01,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:01,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:01,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:01,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:01,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:01,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 21:59:01,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010247379] [2020-10-27 21:59:01,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:59:01,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 21:59:01,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314986370] [2020-10-27 21:59:01,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 21:59:01,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:59:01,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 21:59:01,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 21:59:01,486 INFO L87 Difference]: Start difference. First operand 177 states and 223 transitions. Second operand 7 states. [2020-10-27 21:59:02,534 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 21:59:02,949 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 21:59:03,352 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 21:59:04,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:59:04,245 INFO L93 Difference]: Finished difference Result 390 states and 556 transitions. [2020-10-27 21:59:04,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 21:59:04,246 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-10-27 21:59:04,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:59:04,250 INFO L225 Difference]: With dead ends: 390 [2020-10-27 21:59:04,250 INFO L226 Difference]: Without dead ends: 237 [2020-10-27 21:59:04,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-27 21:59:04,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-27 21:59:04,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 181. [2020-10-27 21:59:04,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-27 21:59:04,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 227 transitions. [2020-10-27 21:59:04,319 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 227 transitions. Word has length 71 [2020-10-27 21:59:04,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:59:04,321 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 227 transitions. [2020-10-27 21:59:04,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 21:59:04,321 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 227 transitions. [2020-10-27 21:59:04,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-27 21:59:04,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:59:04,325 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 21:59:04,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 21:59:04,326 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:59:04,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:59:04,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1663428352, now seen corresponding path program 1 times [2020-10-27 21:59:04,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:59:04,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702136428] [2020-10-27 21:59:04,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:59:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:04,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:04,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:04,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:04,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:05,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:05,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:09,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 21:59:09,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 21:59:09,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 21:59:09,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:09,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 21:59:09,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-27 21:59:09,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 21:59:09,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:09,778 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:59:09,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:59:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:09,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:09,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:09,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:09,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 21:59:09,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:09,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:09,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:09,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:09,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:09,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:59:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:09,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:09,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:09,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:09,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:59:09,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:09,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:09,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:09,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:09,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:09,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:59:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:09,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:09,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:09,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:09,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:59:09,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:09,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:09,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:09,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:09,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:09,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:59:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:09,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:09,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:09,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:09,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:09,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:09,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:09,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:09,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:09,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:09,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:59:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:09,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:09,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:09,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:09,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:59:09,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:09,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:09,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:09,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 21:59:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:09,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:09,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 21:59:09,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:09,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 21:59:09,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:59:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 21:59:09,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:09,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:09,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:09,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 21:59:09,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:09,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 21:59:09,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:09,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:59:09,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:09,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 21:59:09,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:09,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:09,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:09,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:09,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:09,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:09,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:09,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 21:59:09,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:09,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:09,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:09,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 21:59:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:09,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:09,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:59:09,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:09,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 21:59:09,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:09,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 21:59:09,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:09,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:09,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:09,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 21:59:09,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:09,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:09,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:09,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:09,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:09,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:09,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:09,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:09,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:09,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:59:09,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:09,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:09,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:09,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:09,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:09,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:09,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:09,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 21:59:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:09,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:09,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:09,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:09,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:09,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:09,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:09,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:09,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:09,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:09,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 21:59:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:09,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:09,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:09,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:09,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:09,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 21:59:09,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:09,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:59:09,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:09,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:09,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:10,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 21:59:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:10,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:10,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:10,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:10,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:10,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:10,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:10,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:10,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:10,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:10,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:10,028 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 21:59:10,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702136428] [2020-10-27 21:59:10,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 21:59:10,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-27 21:59:10,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822748810] [2020-10-27 21:59:10,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 21:59:10,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:59:10,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 21:59:10,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-27 21:59:10,031 INFO L87 Difference]: Start difference. First operand 181 states and 227 transitions. Second operand 11 states. [2020-10-27 21:59:11,101 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:12,112 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 21:59:12,925 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 206 [2020-10-27 21:59:13,728 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 206 [2020-10-27 21:59:14,276 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:14,755 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:15,168 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:17,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:59:17,578 INFO L93 Difference]: Finished difference Result 604 states and 920 transitions. [2020-10-27 21:59:17,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 21:59:17,579 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 90 [2020-10-27 21:59:17,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:59:17,584 INFO L225 Difference]: With dead ends: 604 [2020-10-27 21:59:17,585 INFO L226 Difference]: Without dead ends: 403 [2020-10-27 21:59:17,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2020-10-27 21:59:17,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-10-27 21:59:17,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 304. [2020-10-27 21:59:17,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-10-27 21:59:17,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 390 transitions. [2020-10-27 21:59:17,683 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 390 transitions. Word has length 90 [2020-10-27 21:59:17,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:59:17,684 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 390 transitions. [2020-10-27 21:59:17,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 21:59:17,684 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 390 transitions. [2020-10-27 21:59:17,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-27 21:59:17,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:59:17,686 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] [2020-10-27 21:59:17,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 21:59:17,686 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:59:17,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:59:17,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1927051272, now seen corresponding path program 1 times [2020-10-27 21:59:17,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:59:17,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963378611] [2020-10-27 21:59:17,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:59:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:17,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:18,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-27 21:59:18,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:18,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 542 [2020-10-27 21:59:18,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 21:59:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:18,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 21:59:18,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:18,631 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 21:59:18,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:59:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:18,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:18,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:18,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:18,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-27 21:59:18,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:18,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:18,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:18,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 21:59:18,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:18,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:59:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:18,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:18,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:18,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:18,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:18,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:18,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:18,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:18,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:18,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:18,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:59:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:18,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:18,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:18,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:18,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:18,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:18,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:18,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:18,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:18,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:18,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:59:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:18,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:18,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:18,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:18,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:18,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:18,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:18,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:18,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:18,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:18,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:59:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:18,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:18,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:59:18,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:18,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:18,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:18,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 21:59:18,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:18,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 21:59:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:18,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:18,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:18,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:18,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:18,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:18,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:18,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:18,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:18,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:18,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 21:59:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:18,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:18,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:59:18,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 21:59:18,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 21:59:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 21:59:18,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:18,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 21:59:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:18,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:18,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 21:59:18,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:18,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 21:59:18,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 21:59:18,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:18,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:59:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:18,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:18,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:59:18,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:18,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:18,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:18,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:18,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:18,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 21:59:18,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:18,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 21:59:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:18,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:18,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:18,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:18,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:59:18,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:59:18,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:59:18,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:59:18,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:18,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 21:59:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:18,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:18,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:18,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:18,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:18,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:18,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:18,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:18,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:18,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:18,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 21:59:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:59:18,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:59:18,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:59:18,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:59:18,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:59:18,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:59:18,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:59:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:59:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:59:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:59:18,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:59:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 21:59:18,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963378611] [2020-10-27 21:59:18,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:59:18,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 21:59:18,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053817131] [2020-10-27 21:59:18,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 21:59:18,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:59:18,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 21:59:18,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 21:59:18,928 INFO L87 Difference]: Start difference. First operand 304 states and 390 transitions. Second operand 7 states. [2020-10-27 21:59:19,558 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:20,306 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 21:59:23,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:59:23,179 INFO L93 Difference]: Finished difference Result 1043 states and 1521 transitions. [2020-10-27 21:59:23,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 21:59:23,180 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-10-27 21:59:23,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:59:23,190 INFO L225 Difference]: With dead ends: 1043 [2020-10-27 21:59:23,191 INFO L226 Difference]: Without dead ends: 754 [2020-10-27 21:59:23,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-27 21:59:23,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2020-10-27 21:59:23,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 620. [2020-10-27 21:59:23,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2020-10-27 21:59:23,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 824 transitions. [2020-10-27 21:59:23,376 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 824 transitions. Word has length 79 [2020-10-27 21:59:23,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:59:23,378 INFO L481 AbstractCegarLoop]: Abstraction has 620 states and 824 transitions. [2020-10-27 21:59:23,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 21:59:23,379 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 824 transitions. [2020-10-27 21:59:23,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-27 21:59:23,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:59:23,380 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] [2020-10-27 21:59:23,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 21:59:23,381 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:59:23,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:59:23,381 INFO L82 PathProgramCache]: Analyzing trace with hash 356474334, now seen corresponding path program 1 times [2020-10-27 21:59:23,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:59:23,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [86330674] [2020-10-27 21:59:23,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:59:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 21:59:23,422 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 21:59:23,422 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 21:59:23,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 21:59:23,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 09:59:23 BoogieIcfgContainer [2020-10-27 21:59:23,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 21:59:23,456 INFO L168 Benchmark]: Toolchain (without parser) took 49673.12 ms. Allocated memory was 158.3 MB in the beginning and 690.0 MB in the end (delta: 531.6 MB). Free memory was 133.9 MB in the beginning and 490.8 MB in the end (delta: -357.0 MB). Peak memory consumption was 175.5 MB. Max. memory is 8.0 GB. [2020-10-27 21:59:23,457 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory was 101.0 MB in the beginning and 100.9 MB in the end (delta: 74.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 21:59:23,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.87 ms. Allocated memory is still 158.3 MB. Free memory was 133.2 MB in the beginning and 113.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-27 21:59:23,459 INFO L168 Benchmark]: Boogie Preprocessor took 86.99 ms. Allocated memory is still 158.3 MB. Free memory was 113.2 MB in the beginning and 109.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 21:59:23,459 INFO L168 Benchmark]: RCFGBuilder took 1375.77 ms. Allocated memory is still 158.3 MB. Free memory was 109.3 MB in the beginning and 97.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 19.1 MB. Max. memory is 8.0 GB. [2020-10-27 21:59:23,460 INFO L168 Benchmark]: TraceAbstraction took 47509.60 ms. Allocated memory was 158.3 MB in the beginning and 690.0 MB in the end (delta: 531.6 MB). Free memory was 97.3 MB in the beginning and 490.8 MB in the end (delta: -393.5 MB). Peak memory consumption was 138.6 MB. Max. memory is 8.0 GB. [2020-10-27 21:59:23,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory was 101.0 MB in the beginning and 100.9 MB in the end (delta: 74.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 682.87 ms. Allocated memory is still 158.3 MB. Free memory was 133.2 MB in the beginning and 113.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 86.99 ms. Allocated memory is still 158.3 MB. Free memory was 113.2 MB in the beginning and 109.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1375.77 ms. Allocated memory is still 158.3 MB. Free memory was 109.3 MB in the beginning and 97.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 19.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 47509.60 ms. Allocated memory was 158.3 MB in the beginning and 690.0 MB in the end (delta: 531.6 MB). Free memory was 97.3 MB in the beginning and 490.8 MB in the end (delta: -393.5 MB). Peak memory consumption was 138.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L685] int cleanupTimeShifts = 4; [L808] int waterLevel = 1; [L809] int methaneLevelCritical = 0; [L758] int retValue_acc ; [L759] int tmp ; [L763] FCALL select_helpers() [L764] FCALL select_features() [L765] CALL, EXPR valid_product() [L676] int retValue_acc ; [L679] retValue_acc = 1 [L680] return (retValue_acc); [L765] RET, EXPR valid_product() [L765] tmp = valid_product() [L767] COND TRUE \read(tmp) [L769] FCALL setup() [L770] CALL runTest() [L752] CALL test() [L583] int splverifierCounter ; [L584] int tmp ; [L585] int tmp___0 ; [L586] int tmp___1 ; [L587] int tmp___2 ; [L590] splverifierCounter = 0 [L592] COND TRUE 1 [L594] COND TRUE splverifierCounter < 4 [L600] tmp = __VERIFIER_nondet_int() [L602] COND TRUE \read(tmp) [L604] CALL waterRise() [L826] COND TRUE waterLevel < 2 [L827] waterLevel = waterLevel + 1 [L604] RET waterRise() [L610] tmp___0 = __VERIFIER_nondet_int() [L612] COND TRUE \read(tmp___0) [L614] CALL changeMethaneLevel() [L838] COND FALSE !(\read(methaneLevelCritical)) [L841] methaneLevelCritical = 1 [L614] RET changeMethaneLevel() [L620] tmp___2 = __VERIFIER_nondet_int() [L622] COND TRUE \read(tmp___2) [L635] CALL timeShift() [L434] COND FALSE !(\read(pumpRunning)) [L441] COND TRUE \read(systemActive) [L443] CALL processEnvironment() [L463] int tmp ; [L466] COND TRUE ! pumpRunning [L468] CALL, EXPR isHighWaterLevel() [L560] int retValue_acc ; [L561] int tmp ; [L562] int tmp___0 ; [L566] CALL, EXPR isHighWaterSensorDry() [L888] int retValue_acc ; [L891] COND FALSE !(waterLevel < 2) [L895] retValue_acc = 0 [L896] return (retValue_acc); [L566] RET, EXPR isHighWaterSensorDry() [L566] tmp = isHighWaterSensorDry() [L568] COND FALSE !(\read(tmp)) [L571] tmp___0 = 1 [L573] retValue_acc = tmp___0 [L574] return (retValue_acc); [L468] RET, EXPR isHighWaterLevel() [L468] tmp = isHighWaterLevel() [L470] COND TRUE \read(tmp) [L472] CALL activatePump() [L491] pumpRunning = 1 [L472] RET activatePump() [L443] RET processEnvironment() [L449] CALL __utac_acc__Specification1_spec__1() [L782] int tmp ; [L783] int tmp___0 ; [L787] CALL, EXPR isMethaneLevelCritical() [L847] int retValue_acc ; [L850] retValue_acc = methaneLevelCritical [L851] return (retValue_acc); [L787] RET, EXPR isMethaneLevelCritical() [L787] tmp = isMethaneLevelCritical() [L789] COND TRUE \read(tmp) [L791] CALL, EXPR isPumpRunning() [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); [L791] RET, EXPR isPumpRunning() [L791] tmp___0 = isPumpRunning() [L793] COND TRUE \read(tmp___0) [L795] CALL __automaton_fail() [L412] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product33.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 227 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 47.4s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 23.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 555 SDtfs, 1110 SDslu, 769 SDs, 0 SdLazy, 3363 SolverSat, 695 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 123 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 11.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=620occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 378 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 441 NumberOfCodeBlocks, 441 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 353 ConstructedInterpolants, 0 QuantifiedInterpolants, 113250 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 7/10 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...