/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=SHALLOWEST --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 03:22:11,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:22:11,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:22:11,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:22:11,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:22:11,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:22:11,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:22:11,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:22:11,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:22:11,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:22:11,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:22:11,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:22:11,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:22:11,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:22:11,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:22:11,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:22:11,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:22:11,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:22:11,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:22:11,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:22:11,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:22:11,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:22:11,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:22:11,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:22:11,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:22:11,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:22:11,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:22:11,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:22:11,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:22:11,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:22:11,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:22:11,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:22:11,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:22:11,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:22:11,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:22:11,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:22:11,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:22:11,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:22:11,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:22:11,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:22:11,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:22:11,728 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 03:22:11,780 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:22:11,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:22:11,784 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:22:11,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:22:11,785 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:22:11,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:22:11,785 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:22:11,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:22:11,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:22:11,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:22:11,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:22:11,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:22:11,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:22:11,788 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:22:11,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:22:11,788 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:22:11,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:22:11,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:22:11,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:22:11,789 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:22:11,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:22:11,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:22:11,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:22:11,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:22:11,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:22:11,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:22:11,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:22:11,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:22:11,791 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:22:11,791 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:22:12,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:22:12,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:22:12,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:22:12,281 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:22:12,282 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:22:12,283 INFO L432 ainManager$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 03:22:12,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/176b50f3e/53b81fe96aee405dafa3865b449a6011/FLAG27f760d3a [2020-10-27 03:22:13,185 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:22:13,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-10-27 03:22:13,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/176b50f3e/53b81fe96aee405dafa3865b449a6011/FLAG27f760d3a [2020-10-27 03:22:13,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/176b50f3e/53b81fe96aee405dafa3865b449a6011 [2020-10-27 03:22:13,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:22:13,423 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:22:13,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:22:13,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:22:13,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:22:13,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:22:13" (1/1) ... [2020-10-27 03:22:13,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aeb1f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:13, skipping insertion in model container [2020-10-27 03:22:13,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:22:13" (1/1) ... [2020-10-27 03:22:13,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:22:13,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:22:13,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:22:13,789 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:22:13,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:22:13,919 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:22:13,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:13 WrapperNode [2020-10-27 03:22:13,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:22:13,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:22:13,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:22:13,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:22:13,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:13" (1/1) ... [2020-10-27 03:22:13,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:13" (1/1) ... [2020-10-27 03:22:13,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:13" (1/1) ... [2020-10-27 03:22:13,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:13" (1/1) ... [2020-10-27 03:22:13,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:13" (1/1) ... [2020-10-27 03:22:13,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:13" (1/1) ... [2020-10-27 03:22:14,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:13" (1/1) ... [2020-10-27 03:22:14,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:22:14,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:22:14,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:22:14,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:22:14,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:13" (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 03:22:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:22:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:22:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:22:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:22:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:22:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:22:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:22:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:22:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:22:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:22:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:22:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:22:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 03:22:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:22:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:22:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:22:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:22:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:22:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:22:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 03:22:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:22:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:22:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:22:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:22:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:22:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:22:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:22:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:22:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:22:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:22:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-27 03:22:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:22:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:22:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:22:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:22:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:22:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:22:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 03:22:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:22:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:22:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:22:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:22:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:22:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:22:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:22:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:22:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:22:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:22:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:22:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:22:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:22:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:22:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:22:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:22:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:22:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:22:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:22:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:22:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:22:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:22:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:22:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:22:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:22:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 03:22:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:22:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:22:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:22:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:22:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:22:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-27 03:22:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:22:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 03:22:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 03:22:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:22:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:22:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:22:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:22:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:22:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:22:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:22:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:22:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:22:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:22:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:22:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:22:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:22:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:22:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:22:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:22:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:22:15,418 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:22:15,418 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:22:15,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:22:15 BoogieIcfgContainer [2020-10-27 03:22:15,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:22:15,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:22:15,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:22:15,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:22:15,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:22:13" (1/3) ... [2020-10-27 03:22:15,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14065aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:22:15, skipping insertion in model container [2020-10-27 03:22:15,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:22:13" (2/3) ... [2020-10-27 03:22:15,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14065aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:22:15, skipping insertion in model container [2020-10-27 03:22:15,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:22:15" (3/3) ... [2020-10-27 03:22:15,431 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2020-10-27 03:22:15,445 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:22:15,451 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:22:15,465 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:22:15,494 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:22:15,494 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:22:15,494 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:22:15,494 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:22:15,494 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:22:15,494 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:22:15,495 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:22:15,495 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:22:15,517 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-10-27 03:22:15,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-27 03:22:15,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:22:15,527 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 03:22:15,527 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 03:22:15,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:22:15,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1173743397, now seen corresponding path program 1 times [2020-10-27 03:22:15,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:22:15,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318621769] [2020-10-27 03:22:15,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:22:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:16,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:16,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:16,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:17,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:17,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:20,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:20,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-27 03:22:20,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 03:22:20,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-27 03:22:20,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:20,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:20,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:20,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 03:22:20,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 03:22:21,367 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:22:21,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:22:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:21,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:21,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:21,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:21,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:21,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-27 03:22:21,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:21,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:21,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:21,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:22:21,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:21,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:22:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:21,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:21,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:21,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:21,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:21,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:22:21,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:21,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:21,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:21,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:21,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:21,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:22:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:21,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:21,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:21,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:21,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:21,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 03:22:21,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:21,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:21,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:21,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:21,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:21,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:22:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:21,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:21,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:21,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:21,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:21,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:22:21,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:21,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:21,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:21,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:21,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:21,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:22:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:21,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:21,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:21,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:21,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:21,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:22:21,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:21,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:21,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:21,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:21,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:21,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:22:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:21,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:21,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:21,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:21,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:21,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:22:21,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:21,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:21,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:21,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:21,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 03:22:21,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:22:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:21,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:21,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:21,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:21,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:21,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:22:21,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:21,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:21,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:21,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:21,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:21,678 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 03:22:21,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1318621769] [2020-10-27 03:22:21,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:22:21,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 03:22:21,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343868048] [2020-10-27 03:22:21,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 03:22:21,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:22:21,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 03:22:21,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 03:22:21,705 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 4 states. [2020-10-27 03:22:22,206 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:22:23,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:22:23,463 INFO L93 Difference]: Finished difference Result 254 states and 337 transitions. [2020-10-27 03:22:23,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 03:22:23,465 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-27 03:22:23,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:22:23,488 INFO L225 Difference]: With dead ends: 254 [2020-10-27 03:22:23,488 INFO L226 Difference]: Without dead ends: 136 [2020-10-27 03:22:23,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 03:22:23,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-27 03:22:23,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 106. [2020-10-27 03:22:23,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-27 03:22:23,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2020-10-27 03:22:23,596 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 47 [2020-10-27 03:22:23,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:22:23,596 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2020-10-27 03:22:23,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 03:22:23,597 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2020-10-27 03:22:23,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-27 03:22:23,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:22:23,601 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] [2020-10-27 03:22:23,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:22:23,601 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 03:22:23,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:22:23,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1214767318, now seen corresponding path program 1 times [2020-10-27 03:22:23,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:22:23,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930865264] [2020-10-27 03:22:23,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:22:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:23,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:23,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:24,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:26,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:26,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:28,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:28,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 03:22:28,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 03:22:28,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 03:22:28,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:28,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 03:22:28,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:28,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 03:22:28,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:29,026 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:22:29,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:22:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:29,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:29,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:29,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:29,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:29,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 03:22:29,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:29,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:29,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:22:29,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:29,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:22:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:29,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:29,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:29,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:29,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:29,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:29,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:29,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:29,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:29,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:29,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:29,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:22:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:29,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:29,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:29,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:29,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:29,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:22:29,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:29,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:29,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:29,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:29,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:29,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:22:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:29,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:29,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:29,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:29,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:29,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:22:29,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:29,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:29,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:22:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:29,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:29,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:29,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:29,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:29,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:29,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:29,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:29,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:29,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:29,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 03:22:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:29,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:29,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:29,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 03:22:29,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:29,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:22:29,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:29,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:29,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:29,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 03:22:29,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:29,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:22:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:29,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:29,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:29,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:29,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:29,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:29,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:29,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:29,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:29,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:29,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:29,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 03:22:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:29,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:29,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:29,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:29,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:29,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:22:29,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:29,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:22:29,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:29,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:29,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:29,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 03:22:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:29,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:29,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:29,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:29,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:29,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:29,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:29,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:29,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:29,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:29,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:29,252 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 03:22:29,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930865264] [2020-10-27 03:22:29,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:22:29,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:22:29,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763586154] [2020-10-27 03:22:29,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:22:29,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:22:29,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:22:29,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:22:29,259 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 8 states. [2020-10-27 03:22:29,765 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:22:31,010 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:31,404 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:31,743 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 03:22:32,169 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:22:32,566 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:33,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:22:33,690 INFO L93 Difference]: Finished difference Result 353 states and 482 transitions. [2020-10-27 03:22:33,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 03:22:33,690 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 60 [2020-10-27 03:22:33,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:22:33,697 INFO L225 Difference]: With dead ends: 353 [2020-10-27 03:22:33,699 INFO L226 Difference]: Without dead ends: 248 [2020-10-27 03:22:33,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-27 03:22:33,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-10-27 03:22:33,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 169. [2020-10-27 03:22:33,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-27 03:22:33,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 199 transitions. [2020-10-27 03:22:33,790 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 199 transitions. Word has length 60 [2020-10-27 03:22:33,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:22:33,791 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 199 transitions. [2020-10-27 03:22:33,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:22:33,791 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 199 transitions. [2020-10-27 03:22:33,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-27 03:22:33,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:22:33,794 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] [2020-10-27 03:22:33,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:22:33,795 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 03:22:33,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:22:33,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1291796774, now seen corresponding path program 1 times [2020-10-27 03:22:33,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:22:33,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973201247] [2020-10-27 03:22:33,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:22:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:33,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:34,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:34,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:34,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:36,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:36,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-27 03:22:36,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 03:22:36,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2552 [2020-10-27 03:22:36,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:36,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 03:22:36,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:36,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 03:22:36,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:36,683 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:22:36,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:22:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:36,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:36,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:36,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:36,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:36,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 03:22:36,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:36,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:36,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:36,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:22:36,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:36,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:22:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:36,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:36,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:36,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:36,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:36,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:36,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:36,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:36,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:22:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:36,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:36,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:36,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:36,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:36,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:36,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:36,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:36,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:36,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:22:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:36,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:36,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:36,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:36,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:36,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:36,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:36,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:36,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:36,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:22:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:36,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:36,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:36,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:36,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:36,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:36,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:36,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:36,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:36,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:36,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:36,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:22:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:36,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:36,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:36,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:36,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:36,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:36,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:36,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:36,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 03:22:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:36,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:36,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:36,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:36,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 03:22:36,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 03:22:36,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:22:36,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:36,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:22:36,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 03:22:36,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 03:22:36,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:36,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:22:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:36,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:36,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:36,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:36,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:36,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:22:36,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:36,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:36,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 03:22:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:36,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:36,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:36,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:36,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:36,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:22:36,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:36,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:36,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 03:22:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:36,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:36,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:36,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:36,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:36,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:22:36,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:36,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:22:36,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:36,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:36,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:36,939 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 03:22:36,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973201247] [2020-10-27 03:22:36,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:22:36,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 03:22:36,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009667982] [2020-10-27 03:22:36,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 03:22:36,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:22:36,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 03:22:36,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-27 03:22:36,942 INFO L87 Difference]: Start difference. First operand 169 states and 199 transitions. Second operand 11 states. [2020-10-27 03:22:37,457 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:22:38,577 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:38,843 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:22:39,146 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:39,474 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:39,788 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:22:40,217 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:22:40,887 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-27 03:22:41,332 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-27 03:22:42,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:22:42,051 INFO L93 Difference]: Finished difference Result 564 states and 749 transitions. [2020-10-27 03:22:42,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 03:22:42,052 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 64 [2020-10-27 03:22:42,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:22:42,058 INFO L225 Difference]: With dead ends: 564 [2020-10-27 03:22:42,058 INFO L226 Difference]: Without dead ends: 419 [2020-10-27 03:22:42,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-10-27 03:22:42,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-10-27 03:22:42,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 303. [2020-10-27 03:22:42,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-10-27 03:22:42,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 358 transitions. [2020-10-27 03:22:42,163 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 358 transitions. Word has length 64 [2020-10-27 03:22:42,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:22:42,163 INFO L481 AbstractCegarLoop]: Abstraction has 303 states and 358 transitions. [2020-10-27 03:22:42,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 03:22:42,163 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 358 transitions. [2020-10-27 03:22:42,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-27 03:22:42,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:22:42,166 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 03:22:42,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:22:42,167 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 03:22:42,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:22:42,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1129577739, now seen corresponding path program 1 times [2020-10-27 03:22:42,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:22:42,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163428411] [2020-10-27 03:22:42,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:22:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:42,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:42,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:42,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-27 03:22:42,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:42,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-10-27 03:22:42,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:22:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-27 03:22:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:22:42,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:42,783 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:22:42,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:22:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:42,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:42,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:42,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:42,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:42,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 03:22:42,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:42,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:42,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:42,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:42,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:42,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:22:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:42,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:42,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:42,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:42,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:42,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:22:42,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:42,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:42,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:42,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:42,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:42,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:22:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:42,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:42,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:42,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:42,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:42,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:42,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:42,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:42,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:42,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:42,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:22:42,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:22:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:42,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:42,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:42,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:42,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:42,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:42,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:42,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:42,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:42,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:42,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:42,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:22:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:42,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:42,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:42,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:42,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:42,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:22:42,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:42,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:42,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:42,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:42,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:42,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:22:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:42,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:42,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:42,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:42,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:42,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:42,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:42,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:42,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:42,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:42,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:42,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 03:22:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:42,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:42,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:42,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:22:42,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:42,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 03:22:42,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:42,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 03:22:42,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 03:22:42,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:22:42,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:42,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:22:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:42,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:42,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:42,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:22:42,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:42,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 03:22:42,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:42,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:22:42,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:42,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 03:22:42,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:22:43,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:22:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:43,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:43,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:43,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:22:43,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:43,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:43,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:43,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:43,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:43,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:43,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:43,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:22:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:43,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:43,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:43,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:43,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:43,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:43,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:43,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:43,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 03:22:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:43,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:43,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:43,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:43,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:43,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:43,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:43,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:43,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:43,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:43,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:43,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 03:22:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:43,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:43,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:43,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:43,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:43,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:43,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:43,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:43,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:43,065 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 03:22:43,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163428411] [2020-10-27 03:22:43,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:22:43,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 03:22:43,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621678851] [2020-10-27 03:22:43,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 03:22:43,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:22:43,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 03:22:43,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-27 03:22:43,068 INFO L87 Difference]: Start difference. First operand 303 states and 358 transitions. Second operand 9 states. [2020-10-27 03:22:43,985 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:44,283 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:22:44,586 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:44,879 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:46,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:22:46,048 INFO L93 Difference]: Finished difference Result 698 states and 896 transitions. [2020-10-27 03:22:46,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 03:22:46,049 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-10-27 03:22:46,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:22:46,054 INFO L225 Difference]: With dead ends: 698 [2020-10-27 03:22:46,054 INFO L226 Difference]: Without dead ends: 419 [2020-10-27 03:22:46,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-27 03:22:46,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-10-27 03:22:46,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 313. [2020-10-27 03:22:46,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-10-27 03:22:46,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 368 transitions. [2020-10-27 03:22:46,168 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 368 transitions. Word has length 79 [2020-10-27 03:22:46,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:22:46,169 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 368 transitions. [2020-10-27 03:22:46,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 03:22:46,169 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 368 transitions. [2020-10-27 03:22:46,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-27 03:22:46,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:22:46,171 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 03:22:46,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:22:46,172 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 03:22:46,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:22:46,173 INFO L82 PathProgramCache]: Analyzing trace with hash 256625655, now seen corresponding path program 1 times [2020-10-27 03:22:46,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:22:46,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747426054] [2020-10-27 03:22:46,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:22:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:46,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:46,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:46,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-27 03:22:46,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:46,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-27 03:22:46,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:22:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-27 03:22:46,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:46,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:46,789 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:22:46,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:22:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:46,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:46,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:46,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:46,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:46,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 03:22:46,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:46,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:46,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:46,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:46,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:46,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:22:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:46,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:46,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:46,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:46,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:46,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:46,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:46,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:46,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:46,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:22:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:46,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:46,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:46,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:46,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:46,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 03:22:46,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:46,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:46,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:46,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:46,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:46,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:22:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:46,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:46,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:46,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:46,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:46,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:46,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:46,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:46,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:46,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:46,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:46,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:22:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:46,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:46,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:46,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:46,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:46,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:46,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:46,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:46,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:46,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:46,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:46,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:22:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:46,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:46,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:46,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:46,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:46,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:46,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:46,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:46,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 03:22:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:46,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:46,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:46,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:22:46,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:46,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 03:22:46,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:46,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:22:46,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 03:22:46,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:46,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:46,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:22:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:46,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:46,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:46,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:22:46,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:46,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 03:22:46,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:46,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:22:46,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 03:22:46,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:46,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:46,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:22:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:46,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:46,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:46,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:22:46,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:46,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:22:46,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:46,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 03:22:46,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:46,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:46,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:46,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:22:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:46,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:46,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:46,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:46,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:46,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:22:46,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:46,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:46,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:46,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:46,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:22:46,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 03:22:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:46,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:46,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:46,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:46,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:46,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:46,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:46,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:46,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:46,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:46,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:46,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 03:22:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:46,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:46,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:46,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:46,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:46,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:46,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:46,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:47,008 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 03:22:47,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747426054] [2020-10-27 03:22:47,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:22:47,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:22:47,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223136115] [2020-10-27 03:22:47,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:22:47,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:22:47,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:22:47,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:22:47,013 INFO L87 Difference]: Start difference. First operand 313 states and 368 transitions. Second operand 8 states. [2020-10-27 03:22:47,903 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:22:48,229 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:48,572 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:22:49,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:22:49,781 INFO L93 Difference]: Finished difference Result 716 states and 933 transitions. [2020-10-27 03:22:49,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 03:22:49,783 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-10-27 03:22:49,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:22:49,790 INFO L225 Difference]: With dead ends: 716 [2020-10-27 03:22:49,790 INFO L226 Difference]: Without dead ends: 427 [2020-10-27 03:22:49,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-27 03:22:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-10-27 03:22:49,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 321. [2020-10-27 03:22:49,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-10-27 03:22:49,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 376 transitions. [2020-10-27 03:22:49,903 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 376 transitions. Word has length 79 [2020-10-27 03:22:49,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:22:49,904 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 376 transitions. [2020-10-27 03:22:49,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:22:49,904 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 376 transitions. [2020-10-27 03:22:49,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-27 03:22:49,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:22:49,907 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 03:22:49,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 03:22:49,908 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 03:22:49,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:22:49,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1927051272, now seen corresponding path program 1 times [2020-10-27 03:22:49,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:22:49,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1110382106] [2020-10-27 03:22:49,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:22:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:49,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-27 03:22:50,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 563 [2020-10-27 03:22:50,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:22:50,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:50,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 03:22:50,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,774 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:22:50,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:22:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:50,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-27 03:22:50,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:22:50,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:22:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:50,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:50,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:50,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:22:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:50,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:50,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:50,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:22:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:50,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:50,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:50,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:22:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:22:50,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:50,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:22:50,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:22:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:50,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:50,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:50,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 03:22:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 03:22:50,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:22:50,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 03:22:50,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-27 03:22:50,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:22:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 03:22:50,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:22:50,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 03:22:50,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 03:22:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:22:50,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:22:50,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 03:22:50,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:50,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 03:22:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:50,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:50,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:50,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:50,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:50,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:50,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:22:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:22:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:22:50,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:51,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-27 03:22:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:51,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:51,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:51,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:51,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:51,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:51,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:51,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:51,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:51,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:51,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:51,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 03:22:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:22:51,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:22:51,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:22:51,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:22:51,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:22:51,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:22:51,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:22:51,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:22:51,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:22:51,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:22:51,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:22:51,025 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 03:22:51,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1110382106] [2020-10-27 03:22:51,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:22:51,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 03:22:51,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233520906] [2020-10-27 03:22:51,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 03:22:51,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:22:51,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 03:22:51,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:22:51,028 INFO L87 Difference]: Start difference. First operand 321 states and 376 transitions. Second operand 7 states. [2020-10-27 03:22:51,658 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:22:52,282 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:22:54,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:22:54,645 INFO L93 Difference]: Finished difference Result 1037 states and 1384 transitions. [2020-10-27 03:22:54,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 03:22:54,646 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-10-27 03:22:54,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:22:54,652 INFO L225 Difference]: With dead ends: 1037 [2020-10-27 03:22:54,653 INFO L226 Difference]: Without dead ends: 731 [2020-10-27 03:22:54,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-27 03:22:54,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2020-10-27 03:22:54,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 614. [2020-10-27 03:22:54,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2020-10-27 03:22:54,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 754 transitions. [2020-10-27 03:22:54,825 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 754 transitions. Word has length 79 [2020-10-27 03:22:54,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:22:54,825 INFO L481 AbstractCegarLoop]: Abstraction has 614 states and 754 transitions. [2020-10-27 03:22:54,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 03:22:54,826 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 754 transitions. [2020-10-27 03:22:54,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-27 03:22:54,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:22:54,828 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 03:22:54,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 03:22:54,828 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:22:54,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:22:54,829 INFO L82 PathProgramCache]: Analyzing trace with hash 356474334, now seen corresponding path program 1 times [2020-10-27 03:22:54,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:22:54,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507764078] [2020-10-27 03:22:54,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:22:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:22:54,870 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:22:54,870 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:22:54,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 03:22:54,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:22:54 BoogieIcfgContainer [2020-10-27 03:22:54,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:22:54,902 INFO L168 Benchmark]: Toolchain (without parser) took 41482.77 ms. Allocated memory was 151.0 MB in the beginning and 650.1 MB in the end (delta: 499.1 MB). Free memory was 125.8 MB in the beginning and 428.5 MB in the end (delta: -302.8 MB). Peak memory consumption was 197.2 MB. Max. memory is 8.0 GB. [2020-10-27 03:22:54,902 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:22:54,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.71 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 104.7 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:22:54,904 INFO L168 Benchmark]: Boogie Preprocessor took 88.32 ms. Allocated memory is still 151.0 MB. Free memory was 104.7 MB in the beginning and 100.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 03:22:54,904 INFO L168 Benchmark]: RCFGBuilder took 1410.41 ms. Allocated memory is still 151.0 MB. Free memory was 100.8 MB in the beginning and 129.3 MB in the end (delta: -28.6 MB). Peak memory consumption was 56.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:22:54,905 INFO L168 Benchmark]: TraceAbstraction took 39477.58 ms. Allocated memory was 151.0 MB in the beginning and 650.1 MB in the end (delta: 499.1 MB). Free memory was 129.3 MB in the beginning and 428.5 MB in the end (delta: -299.2 MB). Peak memory consumption was 200.4 MB. Max. memory is 8.0 GB. [2020-10-27 03:22:54,908 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 494.71 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 104.7 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 88.32 ms. Allocated memory is still 151.0 MB. Free memory was 104.7 MB in the beginning and 100.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1410.41 ms. Allocated memory is still 151.0 MB. Free memory was 100.8 MB in the beginning and 129.3 MB in the end (delta: -28.6 MB). Peak memory consumption was 56.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 39477.58 ms. Allocated memory was 151.0 MB in the beginning and 650.1 MB in the end (delta: 499.1 MB). Free memory was 129.3 MB in the beginning and 428.5 MB in the end (delta: -299.2 MB). Peak memory consumption was 200.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [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: 39.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 20.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 684 SDtfs, 1393 SDslu, 732 SDs, 0 SdLazy, 3667 SolverSat, 873 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 216 GetRequests, 141 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=614occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 554 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.2s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 402 ConstructedInterpolants, 0 QuantifiedInterpolants, 132258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...