/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 16:54:09,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 16:54:09,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 16:54:09,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 16:54:09,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 16:54:09,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 16:54:09,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 16:54:09,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 16:54:09,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 16:54:09,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 16:54:09,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 16:54:09,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 16:54:09,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 16:54:09,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 16:54:09,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 16:54:09,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 16:54:09,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 16:54:09,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 16:54:09,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 16:54:09,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 16:54:09,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 16:54:09,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 16:54:09,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 16:54:09,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 16:54:09,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 16:54:09,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 16:54:09,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 16:54:09,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 16:54:09,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 16:54:09,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 16:54:09,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 16:54:09,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 16:54:09,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 16:54:09,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 16:54:09,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 16:54:09,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 16:54:09,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 16:54:09,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 16:54:09,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 16:54:09,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 16:54:09,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 16:54:09,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 16:54:09,797 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 16:54:09,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 16:54:09,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 16:54:09,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 16:54:09,802 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 16:54:09,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 16:54:09,802 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 16:54:09,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 16:54:09,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 16:54:09,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 16:54:09,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 16:54:09,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 16:54:09,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 16:54:09,805 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 16:54:09,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 16:54:09,805 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 16:54:09,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 16:54:09,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 16:54:09,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 16:54:09,806 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 16:54:09,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 16:54:09,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:54:09,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 16:54:09,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 16:54:09,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 16:54:09,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 16:54:09,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 16:54:09,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 16:54:09,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 16:54:09,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 16:54:10,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 16:54:10,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 16:54:10,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 16:54:10,269 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 16:54:10,270 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 16:54:10,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-10-28 16:54:10,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a51cfc2d/fe730adb82f14125b112e382ac204b95/FLAG05eaf1c35 [2020-10-28 16:54:11,208 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 16:54:11,208 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-10-28 16:54:11,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a51cfc2d/fe730adb82f14125b112e382ac204b95/FLAG05eaf1c35 [2020-10-28 16:54:11,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a51cfc2d/fe730adb82f14125b112e382ac204b95 [2020-10-28 16:54:11,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 16:54:11,251 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 16:54:11,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 16:54:11,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 16:54:11,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 16:54:11,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:54:11" (1/1) ... [2020-10-28 16:54:11,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5204e53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:11, skipping insertion in model container [2020-10-28 16:54:11,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:54:11" (1/1) ... [2020-10-28 16:54:11,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 16:54:11,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 16:54:11,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:54:11,698 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 16:54:11,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:54:11,853 INFO L208 MainTranslator]: Completed translation [2020-10-28 16:54:11,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:11 WrapperNode [2020-10-28 16:54:11,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 16:54:11,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 16:54:11,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 16:54:11,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 16:54:11,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:11" (1/1) ... [2020-10-28 16:54:11,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:11" (1/1) ... [2020-10-28 16:54:11,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:11" (1/1) ... [2020-10-28 16:54:11,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:11" (1/1) ... [2020-10-28 16:54:11,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:11" (1/1) ... [2020-10-28 16:54:11,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:11" (1/1) ... [2020-10-28 16:54:11,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:11" (1/1) ... [2020-10-28 16:54:11,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 16:54:11,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 16:54:11,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 16:54:11,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 16:54:11,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:11" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:54:12,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 16:54:12,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 16:54:12,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-28 16:54:12,083 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 16:54:12,084 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 16:54:12,084 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-28 16:54:12,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-28 16:54:12,085 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-28 16:54:12,085 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 16:54:12,085 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-28 16:54:12,087 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-28 16:54:12,087 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-28 16:54:12,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-28 16:54:12,088 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-28 16:54:12,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-28 16:54:12,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-28 16:54:12,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-28 16:54:12,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-28 16:54:12,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-28 16:54:12,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-28 16:54:12,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-28 16:54:12,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-28 16:54:12,090 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-28 16:54:12,091 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-28 16:54:12,091 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-28 16:54:12,095 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-28 16:54:12,095 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-28 16:54:12,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-28 16:54:12,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-28 16:54:12,096 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-28 16:54:12,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-28 16:54:12,096 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-28 16:54:12,097 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-28 16:54:12,097 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-28 16:54:12,097 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-28 16:54:12,097 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-28 16:54:12,097 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-28 16:54:12,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:54:12,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-28 16:54:12,098 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 16:54:12,098 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 16:54:12,098 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 16:54:12,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 16:54:12,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 16:54:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-28 16:54:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-28 16:54:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 16:54:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-28 16:54:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-28 16:54:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-28 16:54:12,100 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-28 16:54:12,100 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-28 16:54:12,101 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-28 16:54:12,101 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-28 16:54:12,101 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-28 16:54:12,101 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-28 16:54:12,101 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-28 16:54:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 16:54:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-28 16:54:12,102 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-28 16:54:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-28 16:54:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-28 16:54:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-28 16:54:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 16:54:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 16:54:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-28 16:54:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 16:54:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 16:54:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 16:54:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 16:54:12,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-28 16:54:12,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 16:54:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-28 16:54:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-28 16:54:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 16:54:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-28 16:54:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-28 16:54:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-28 16:54:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-28 16:54:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-28 16:54:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-28 16:54:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-28 16:54:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:54:12,110 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-28 16:54:12,123 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-28 16:54:12,123 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-28 16:54:12,123 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-28 16:54:12,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-28 16:54:12,124 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-28 16:54:12,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 16:54:12,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 16:54:12,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 16:54:13,436 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 16:54:13,437 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 16:54:13,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:54:13 BoogieIcfgContainer [2020-10-28 16:54:13,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 16:54:13,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 16:54:13,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 16:54:13,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 16:54:13,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:54:11" (1/3) ... [2020-10-28 16:54:13,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cca607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:54:13, skipping insertion in model container [2020-10-28 16:54:13,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:11" (2/3) ... [2020-10-28 16:54:13,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cca607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:54:13, skipping insertion in model container [2020-10-28 16:54:13,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:54:13" (3/3) ... [2020-10-28 16:54:13,448 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2020-10-28 16:54:13,460 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 16:54:13,466 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-28 16:54:13,480 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-28 16:54:13,506 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 16:54:13,506 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 16:54:13,506 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 16:54:13,507 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 16:54:13,507 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 16:54:13,507 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 16:54:13,507 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 16:54:13,507 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 16:54:13,530 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2020-10-28 16:54:13,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-28 16:54:13,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:13,542 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] [2020-10-28 16:54:13,542 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:54:13,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:13,549 INFO L82 PathProgramCache]: Analyzing trace with hash -405091087, now seen corresponding path program 1 times [2020-10-28 16:54:13,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:13,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219250949] [2020-10-28 16:54:13,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:13,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:14,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:15,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:17,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:17,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 16:54:17,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:54:17,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3188 [2020-10-28 16:54:17,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:17,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:17,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:17,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 16:54:17,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:17,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 16:54:17,459 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:17,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:17,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:17,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:17,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:17,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:17,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 16:54:17,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:17,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:17,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:17,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:17,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:17,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:17,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:17,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:17,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:17,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:17,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:17,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:17,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:17,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:17,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:17,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:17,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:17,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:17,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:17,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:17,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:17,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:17,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:17,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:17,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:17,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:17,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:17,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:17,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:17,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:17,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:17,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:17,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:17,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:17,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:17,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:17,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:17,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:17,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:17,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:17,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:17,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:17,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:17,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:17,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:17,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:17,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:17,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:17,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:17,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:17,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:17,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:17,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:17,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 16:54:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:17,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:17,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:17,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:17,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:17,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:17,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:17,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:17,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:17,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:17,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:54:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:17,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:17,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:17,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:17,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:17,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:17,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:17,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:17,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:17,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:17,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:17,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:17,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:54:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:17,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:17,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:17,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:17,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:17,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:17,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:17,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:17,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:17,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:17,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:17,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:17,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:17,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219250949] [2020-10-28 16:54:17,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:17,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 16:54:17,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915969675] [2020-10-28 16:54:17,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 16:54:17,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:17,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 16:54:17,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:54:17,618 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 3 states. [2020-10-28 16:54:18,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:54:18,738 INFO L93 Difference]: Finished difference Result 273 states and 357 transitions. [2020-10-28 16:54:18,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 16:54:18,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-28 16:54:18,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:54:18,754 INFO L225 Difference]: With dead ends: 273 [2020-10-28 16:54:18,754 INFO L226 Difference]: Without dead ends: 146 [2020-10-28 16:54:18,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:54:18,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-28 16:54:18,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 115. [2020-10-28 16:54:18,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-28 16:54:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 133 transitions. [2020-10-28 16:54:18,853 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 133 transitions. Word has length 53 [2020-10-28 16:54:18,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:54:18,853 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 133 transitions. [2020-10-28 16:54:18,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 16:54:18,854 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 133 transitions. [2020-10-28 16:54:18,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-28 16:54:18,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:18,857 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] [2020-10-28 16:54:18,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 16:54:18,858 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:54:18,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:18,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1105020441, now seen corresponding path program 1 times [2020-10-28 16:54:18,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:18,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380042597] [2020-10-28 16:54:18,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:18,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:18,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:19,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:22,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:22,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 16:54:22,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:54:22,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3765 [2020-10-28 16:54:22,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:22,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:22,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:22,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 16:54:22,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:54:22,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:23,104 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:23,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:23,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:23,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:23,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:23,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:23,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 16:54:23,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:23,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:23,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:23,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:23,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:23,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:23,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:23,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:23,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:23,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:23,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:23,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:23,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:23,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:23,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:23,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:23,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:23,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:23,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:23,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:23,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:23,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:23,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:23,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:23,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:23,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:23,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:23,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:23,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:23,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:23,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:23,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:23,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:23,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:23,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:23,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:23,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:23,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:23,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:23,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:23,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:23,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:23,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:23,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:23,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:23,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:23,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:23,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:23,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:23,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:23,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:23,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:23,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:23,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:23,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:54:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:23,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:23,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:23,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:23,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:23,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:23,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:23,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:23,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:23,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:23,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:23,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:23,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:54:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:23,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:23,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:23,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:23,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:23,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:23,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:23,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:23,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:23,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:23,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:23,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:23,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 16:54:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:23,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:23,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:23,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:23,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:23,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:23,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:23,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:23,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:23,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:23,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:23,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:23,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:23,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380042597] [2020-10-28 16:54:23,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:23,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:54:23,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215703893] [2020-10-28 16:54:23,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:54:23,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:23,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:54:23,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:54:23,262 INFO L87 Difference]: Start difference. First operand 115 states and 133 transitions. Second operand 4 states. [2020-10-28 16:54:23,877 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:54:24,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:54:24,827 INFO L93 Difference]: Finished difference Result 199 states and 240 transitions. [2020-10-28 16:54:24,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:54:24,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-28 16:54:24,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:54:24,830 INFO L225 Difference]: With dead ends: 199 [2020-10-28 16:54:24,830 INFO L226 Difference]: Without dead ends: 130 [2020-10-28 16:54:24,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:54:24,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-28 16:54:24,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 106. [2020-10-28 16:54:24,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-28 16:54:24,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 121 transitions. [2020-10-28 16:54:24,879 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 121 transitions. Word has length 54 [2020-10-28 16:54:24,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:54:24,880 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 121 transitions. [2020-10-28 16:54:24,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:54:24,880 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 121 transitions. [2020-10-28 16:54:24,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-28 16:54:24,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:24,883 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] [2020-10-28 16:54:24,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 16:54:24,883 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:54:24,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:24,884 INFO L82 PathProgramCache]: Analyzing trace with hash 280642209, now seen corresponding path program 1 times [2020-10-28 16:54:24,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:24,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870078900] [2020-10-28 16:54:24,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:24,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:25,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:26,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:26,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 16:54:26,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:54:26,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1513 [2020-10-28 16:54:26,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:26,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:26,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 16:54:26,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:26,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-28 16:54:26,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:26,900 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:26,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:26,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:27,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:27,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:27,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:27,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-28 16:54:27,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:27,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:27,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:27,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:27,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:54:27,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:27,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:27,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:27,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:27,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:27,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:27,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:27,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:27,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:27,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:27,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:27,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:27,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:27,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:27,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:27,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:27,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:27,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:27,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:27,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:27,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:27,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:27,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:27,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:27,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:27,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:27,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:27,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:27,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:27,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:27,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:54:27,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:27,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:27,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:27,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:27,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:54:27,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 16:54:27,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:27,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:27,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:27,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:27,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:27,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:27,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:27,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:27,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:27,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:27,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:27,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:27,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:54:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:27,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:27,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:27,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:27,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:27,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:27,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:27,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:27,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:27,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:27,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:27,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 16:54:27,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:54:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:27,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:27,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:27,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:27,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:27,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:27,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:27,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:27,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:27,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:27,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:27,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:27,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 16:54:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:27,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:27,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:27,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:27,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:27,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:27,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:27,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:27,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:27,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:27,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:27,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:27,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:27,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870078900] [2020-10-28 16:54:27,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:27,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 16:54:27,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162475513] [2020-10-28 16:54:27,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 16:54:27,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:27,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 16:54:27,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:54:27,192 INFO L87 Difference]: Start difference. First operand 106 states and 121 transitions. Second operand 5 states. [2020-10-28 16:54:27,643 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:54:28,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:54:28,549 INFO L93 Difference]: Finished difference Result 212 states and 258 transitions. [2020-10-28 16:54:28,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:54:28,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-28 16:54:28,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:54:28,552 INFO L225 Difference]: With dead ends: 212 [2020-10-28 16:54:28,552 INFO L226 Difference]: Without dead ends: 130 [2020-10-28 16:54:28,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 16:54:28,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-28 16:54:28,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 106. [2020-10-28 16:54:28,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-28 16:54:28,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2020-10-28 16:54:28,600 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 59 [2020-10-28 16:54:28,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:54:28,601 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2020-10-28 16:54:28,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 16:54:28,601 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2020-10-28 16:54:28,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-28 16:54:28,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:28,603 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] [2020-10-28 16:54:28,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 16:54:28,603 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:54:28,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:28,604 INFO L82 PathProgramCache]: Analyzing trace with hash 351250762, now seen corresponding path program 1 times [2020-10-28 16:54:28,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:28,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913045965] [2020-10-28 16:54:28,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:28,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:29,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:29,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 16:54:29,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:29,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 910 [2020-10-28 16:54:29,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:29,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:29,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 16:54:29,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:29,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 16:54:29,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:29,968 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:29,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:30,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:30,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:30,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:30,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:30,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-28 16:54:30,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:30,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:30,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:30,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:30,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:54:30,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:30,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:30,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:30,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:30,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:30,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:30,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:30,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:30,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:30,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:30,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:30,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:30,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:30,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:30,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:30,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:30,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:30,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:30,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:30,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:30,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:30,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:30,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:30,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:30,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:30,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:30,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:30,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:30,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:30,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:30,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:30,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:30,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:54:30,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:30,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:30,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:30,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:30,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:30,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:30,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:30,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:30,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:30,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:30,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 16:54:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:30,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:30,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:30,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 16:54:30,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:30,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:54:30,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:30,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:30,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:30,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:30,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 16:54:30,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:30,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:54:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:30,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:30,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:30,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:30,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:30,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:30,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:30,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:30,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:30,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:30,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:30,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:30,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 16:54:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:30,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:30,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:30,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:30,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:30,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:30,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:30,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:30,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:30,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:30,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:54:30,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:30,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 16:54:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:30,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:30,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:30,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:30,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:30,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 16:54:30,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:30,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:30,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:54:30,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:30,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:54:30,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:30,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-28 16:54:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:30,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:30,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:30,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:30,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:30,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:30,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:30,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:30,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:30,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:30,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:30,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:30,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913045965] [2020-10-28 16:54:30,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:30,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:54:30,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462244849] [2020-10-28 16:54:30,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:54:30,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:30,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:54:30,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:54:30,261 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand 8 states. [2020-10-28 16:54:30,845 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:54:32,388 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:54:32,898 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:54:33,390 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:54:33,829 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:54:34,397 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:54:35,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:54:35,120 INFO L93 Difference]: Finished difference Result 318 states and 414 transitions. [2020-10-28 16:54:35,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:54:35,121 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-28 16:54:35,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:54:35,126 INFO L225 Difference]: With dead ends: 318 [2020-10-28 16:54:35,126 INFO L226 Difference]: Without dead ends: 236 [2020-10-28 16:54:35,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:54:35,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-28 16:54:35,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 185. [2020-10-28 16:54:35,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-28 16:54:35,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 216 transitions. [2020-10-28 16:54:35,197 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 216 transitions. Word has length 67 [2020-10-28 16:54:35,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:54:35,197 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 216 transitions. [2020-10-28 16:54:35,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:54:35,197 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 216 transitions. [2020-10-28 16:54:35,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-28 16:54:35,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:35,200 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] [2020-10-28 16:54:35,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 16:54:35,200 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:54:35,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:35,201 INFO L82 PathProgramCache]: Analyzing trace with hash 506903146, now seen corresponding path program 1 times [2020-10-28 16:54:35,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:35,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956285168] [2020-10-28 16:54:35,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:35,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:35,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:35,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:40,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:40,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-28 16:54:40,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:54:40,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-28 16:54:40,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:40,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:40,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:54:40,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 16:54:40,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 16:54:40,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:40,650 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:40,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:40,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:40,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:40,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:40,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:40,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 16:54:40,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:40,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:40,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:40,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:40,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:40,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:40,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:40,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:40,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:40,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:40,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:40,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:40,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:40,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:40,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:40,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:40,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:40,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:40,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:40,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:40,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:40,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:40,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:40,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:40,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:40,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:40,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:40,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:40,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:40,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:40,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:40,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:40,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:40,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:40,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:40,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:40,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:40,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:40,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:40,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:40,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:40,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:40,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:40,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:40,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:40,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:40,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:40,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:54:40,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:40,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:40,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:40,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:40,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:40,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-28 16:54:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:40,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:40,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:40,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:40,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:40,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:40,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:40,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:40,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:40,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:40,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:40,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:40,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:54:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:40,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:40,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:40,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:40,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:40,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:54:40,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:40,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:40,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:54:40,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:40,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:54:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:40,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:40,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:40,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 16:54:40,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:40,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:54:40,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:40,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:40,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:54:40,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 16:54:40,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 16:54:40,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:40,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:54:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:40,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:40,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:40,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:40,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:40,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:40,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:40,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:40,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:54:40,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:40,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:54:40,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:40,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-28 16:54:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:40,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:40,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:40,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:40,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:40,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:40,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:40,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:40,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:40,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:40,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:40,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:40,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 16:54:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:40,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:40,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:40,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:40,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:40,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:40,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:40,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:40,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:40,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:40,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:40,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:40,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 16:54:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:40,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:40,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:40,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:40,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:40,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:40,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:40,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:40,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:40,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:40,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:40,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:40,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956285168] [2020-10-28 16:54:40,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:40,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 16:54:40,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760792795] [2020-10-28 16:54:40,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 16:54:40,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:40,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 16:54:40,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:54:40,834 INFO L87 Difference]: Start difference. First operand 185 states and 216 transitions. Second operand 7 states. [2020-10-28 16:54:41,835 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:54:42,233 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:54:44,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:54:44,650 INFO L93 Difference]: Finished difference Result 505 states and 656 transitions. [2020-10-28 16:54:44,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 16:54:44,652 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2020-10-28 16:54:44,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:54:44,657 INFO L225 Difference]: With dead ends: 505 [2020-10-28 16:54:44,658 INFO L226 Difference]: Without dead ends: 344 [2020-10-28 16:54:44,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-28 16:54:44,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-10-28 16:54:44,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 303. [2020-10-28 16:54:44,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-10-28 16:54:44,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 370 transitions. [2020-10-28 16:54:44,771 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 370 transitions. Word has length 75 [2020-10-28 16:54:44,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:54:44,772 INFO L481 AbstractCegarLoop]: Abstraction has 303 states and 370 transitions. [2020-10-28 16:54:44,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 16:54:44,772 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 370 transitions. [2020-10-28 16:54:44,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-28 16:54:44,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:44,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:54:44,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 16:54:44,774 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:54:44,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:44,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1085939472, now seen corresponding path program 1 times [2020-10-28 16:54:44,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:44,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800104534] [2020-10-28 16:54:44,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 16:54:44,820 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 16:54:44,820 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 16:54:44,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 16:54:44,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 04:54:44 BoogieIcfgContainer [2020-10-28 16:54:44,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 16:54:44,868 INFO L168 Benchmark]: Toolchain (without parser) took 33619.55 ms. Allocated memory was 151.0 MB in the beginning and 590.3 MB in the end (delta: 439.4 MB). Free memory was 125.9 MB in the beginning and 353.3 MB in the end (delta: -227.3 MB). Peak memory consumption was 212.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:54:44,870 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 129.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 16:54:44,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.16 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 104.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-28 16:54:44,879 INFO L168 Benchmark]: Boogie Preprocessor took 128.66 ms. Allocated memory is still 151.0 MB. Free memory was 104.7 MB in the beginning and 100.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:54:44,880 INFO L168 Benchmark]: RCFGBuilder took 1454.61 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.8 MB in the beginning and 160.1 MB in the end (delta: -59.4 MB). Peak memory consumption was 51.5 MB. Max. memory is 8.0 GB. [2020-10-28 16:54:44,880 INFO L168 Benchmark]: TraceAbstraction took 31422.91 ms. Allocated memory was 181.4 MB in the beginning and 590.3 MB in the end (delta: 408.9 MB). Free memory was 160.1 MB in the beginning and 353.3 MB in the end (delta: -193.1 MB). Peak memory consumption was 215.3 MB. Max. memory is 8.0 GB. [2020-10-28 16:54:44,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 129.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 601.16 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 104.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 128.66 ms. Allocated memory is still 151.0 MB. Free memory was 104.7 MB in the beginning and 100.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1454.61 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.8 MB in the beginning and 160.1 MB in the end (delta: -59.4 MB). Peak memory consumption was 51.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 31422.91 ms. Allocated memory was 181.4 MB in the beginning and 590.3 MB in the end (delta: 408.9 MB). Free memory was 160.1 MB in the beginning and 353.3 MB in the end (delta: -193.1 MB). Peak memory consumption was 215.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L151] int waterLevel = 1; [L152] int methaneLevelCritical = 0; [L409] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L610] int pumpRunning = 0; [L611] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L864] int retValue_acc ; [L867] retValue_acc = 1 [L868] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L772] int splverifierCounter ; [L773] int tmp ; [L774] int tmp___0 ; [L775] int tmp___1 ; [L776] int tmp___2 ; [L779] splverifierCounter = 0 [L781] COND TRUE 1 [L783] COND TRUE splverifierCounter < 4 [L789] tmp = __VERIFIER_nondet_int() [L791] COND TRUE \read(tmp) [L793] CALL waterRise() [L169] COND TRUE waterLevel < 2 [L170] waterLevel = waterLevel + 1 [L793] RET waterRise() [L799] tmp___0 = __VERIFIER_nondet_int() [L801] COND FALSE !(\read(tmp___0)) [L809] tmp___2 = __VERIFIER_nondet_int() [L811] COND FALSE !(\read(tmp___2)) [L817] tmp___1 = __VERIFIER_nondet_int() [L819] COND TRUE \read(tmp___1) [L826] CALL timeShift() [L618] COND FALSE !(\read(pumpRunning)) [L625] COND TRUE \read(systemActive) [L627] CALL processEnvironment() [L647] int tmp ; [L650] COND FALSE !(\read(pumpRunning)) [L665] FCALL processEnvironment__wrappee__base() [L627] RET processEnvironment() [L633] CALL __utac_acc__Specification3_spec__1() [L875] int tmp ; [L876] int tmp___0 ; [L877] int tmp___1 ; [L881] CALL, EXPR isMethaneLevelCritical() [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); [L881] RET, EXPR isMethaneLevelCritical() [L881] tmp = isMethaneLevelCritical() [L883] COND FALSE !(\read(tmp)) [L887] CALL, EXPR getWaterLevel() [L222] int retValue_acc ; [L225] retValue_acc = waterLevel [L226] return (retValue_acc); [L887] RET, EXPR getWaterLevel() [L887] tmp___0 = getWaterLevel() [L889] COND TRUE tmp___0 == 2 [L891] CALL, EXPR isPumpRunning() [L699] int retValue_acc ; [L702] retValue_acc = pumpRunning [L703] return (retValue_acc); [L891] RET, EXPR isPumpRunning() [L891] tmp___1 = isPumpRunning() [L893] COND FALSE !(\read(tmp___1)) [L897] CALL __automaton_fail() [L912] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product18.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 233 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 574 SDtfs, 864 SDslu, 314 SDs, 0 SdLazy, 1553 SolverSat, 553 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=303occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 171 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.4s InterpolantComputationTime, 379 NumberOfCodeBlocks, 379 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 303 ConstructedInterpolants, 0 QuantifiedInterpolants, 90552 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...