/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:27:06,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:27:06,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:27:06,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:27:06,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:27:06,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:27:06,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:27:06,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:27:06,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:27:06,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:27:06,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:27:06,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:27:06,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:27:06,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:27:06,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:27:06,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:27:06,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:27:06,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:27:06,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:27:06,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:27:06,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:27:06,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:27:06,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:27:06,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:27:06,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:27:06,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:27:06,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:27:06,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:27:06,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:27:06,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:27:06,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:27:06,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:27:06,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:27:06,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:27:06,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:27:06,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:27:06,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:27:06,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:27:06,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:27:06,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:27:06,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:27:06,771 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 20:27:06,782 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:27:06,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:27:06,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:27:06,784 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:27:06,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:27:06,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:27:06,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:27:06,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:27:06,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:27:06,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:27:06,785 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:27:06,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:27:06,785 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:27:06,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:27:06,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:27:06,786 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:27:06,786 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:27:06,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:27:06,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:27:06,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:27:06,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:27:06,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:27:06,788 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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: Use separate solver for trace checks -> true [2020-09-04 20:27:07,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:27:07,238 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:27:07,243 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:27:07,244 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:27:07,245 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:27:07,246 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-09-04 20:27:07,338 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff5be91b6/03c60a4a68394f26aec48167f817b5f6/FLAG20ee71901 [2020-09-04 20:27:07,926 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:27:07,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-09-04 20:27:07,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff5be91b6/03c60a4a68394f26aec48167f817b5f6/FLAG20ee71901 [2020-09-04 20:27:08,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff5be91b6/03c60a4a68394f26aec48167f817b5f6 [2020-09-04 20:27:08,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:27:08,220 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:27:08,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:27:08,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:27:08,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:27:08,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:27:08" (1/1) ... [2020-09-04 20:27:08,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:08, skipping insertion in model container [2020-09-04 20:27:08,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:27:08" (1/1) ... [2020-09-04 20:27:08,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:27:08,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:27:08,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:27:08,670 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:27:08,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:27:08,892 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:27:08,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:08 WrapperNode [2020-09-04 20:27:08,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:27:08,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:27:08,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:27:08,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:27:08,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:08" (1/1) ... [2020-09-04 20:27:08,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:08" (1/1) ... [2020-09-04 20:27:08,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:08" (1/1) ... [2020-09-04 20:27:08,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:08" (1/1) ... [2020-09-04 20:27:08,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:08" (1/1) ... [2020-09-04 20:27:08,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:08" (1/1) ... [2020-09-04 20:27:08,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:08" (1/1) ... [2020-09-04 20:27:08,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:27:08,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:27:08,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:27:08,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:27:08,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:08" (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 [2020-09-04 20:27:09,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:27:09,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:27:09,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:27:09,066 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:27:09,067 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:27:09,067 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:27:09,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:27:09,067 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:27:09,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:27:09,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 20:27:09,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:27:09,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-04 20:27:09,068 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:27:09,068 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:27:09,068 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 20:27:09,069 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:27:09,069 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:27:09,069 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:27:09,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:27:09,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:27:09,070 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:27:09,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 20:27:09,070 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 20:27:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:27:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:27:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:27:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:27:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:27:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:27:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:27:09,072 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:27:09,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:27:09,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:27:09,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:27:09,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:27:09,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:27:09,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:27:09,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:27:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:27:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:27:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:27:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:27:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:27:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:27:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:27:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:27:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:27:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 20:27:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:27:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:27:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:27:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-04 20:27:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 20:27:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:27:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:27:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:27:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:27:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:27:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:27:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:27:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 20:27:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 20:27:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:27:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:27:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:27:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:27:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:27:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:27:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:27:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:27:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:27:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:27:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:27:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:27:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:27:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:27:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:27:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:27:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:27:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:27:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:27:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:27:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:27:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:27:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:27:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:27:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:27:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:27:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:27:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:27:10,164 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:27:10,164 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:27:10,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:27:10 BoogieIcfgContainer [2020-09-04 20:27:10,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:27:10,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:27:10,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:27:10,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:27:10,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:27:08" (1/3) ... [2020-09-04 20:27:10,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740555d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:27:10, skipping insertion in model container [2020-09-04 20:27:10,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:08" (2/3) ... [2020-09-04 20:27:10,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740555d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:27:10, skipping insertion in model container [2020-09-04 20:27:10,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:27:10" (3/3) ... [2020-09-04 20:27:10,194 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-09-04 20:27:10,206 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:27:10,220 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:27:10,243 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:27:10,275 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:27:10,275 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:27:10,276 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:27:10,276 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:27:10,276 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:27:10,276 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:27:10,276 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:27:10,277 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:27:10,313 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-09-04 20:27:10,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-04 20:27:10,350 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:10,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:27:10,352 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:10,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:10,360 INFO L82 PathProgramCache]: Analyzing trace with hash 750514354, now seen corresponding path program 1 times [2020-09-04 20:27:10,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:10,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691675514] [2020-09-04 20:27:10,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:11,199 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:11,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:11,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:11,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:11,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:11,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:11,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:27:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:11,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-04 20:27:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:11,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:27:11,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691675514] [2020-09-04 20:27:11,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:11,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:27:11,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670346847] [2020-09-04 20:27:11,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:27:11,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:11,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:27:11,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:27:11,437 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2020-09-04 20:27:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:12,681 INFO L93 Difference]: Finished difference Result 439 states and 524 transitions. [2020-09-04 20:27:12,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:27:12,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-04 20:27:12,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:12,714 INFO L225 Difference]: With dead ends: 439 [2020-09-04 20:27:12,714 INFO L226 Difference]: Without dead ends: 277 [2020-09-04 20:27:12,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:27:12,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-04 20:27:12,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 236. [2020-09-04 20:27:12,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-09-04 20:27:12,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 255 transitions. [2020-09-04 20:27:12,854 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 255 transitions. Word has length 142 [2020-09-04 20:27:12,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:12,855 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 255 transitions. [2020-09-04 20:27:12,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:27:12,856 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 255 transitions. [2020-09-04 20:27:12,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-04 20:27:12,860 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:12,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:27:12,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:27:12,861 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:12,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:12,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1453121021, now seen corresponding path program 1 times [2020-09-04 20:27:12,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:12,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678838576] [2020-09-04 20:27:12,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:13,262 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:13,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:13,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:13,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:13,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:13,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:13,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:27:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:13,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:27:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:13,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:27:13,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678838576] [2020-09-04 20:27:13,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:13,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:27:13,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470925263] [2020-09-04 20:27:13,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:27:13,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:13,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:27:13,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:27:13,379 INFO L87 Difference]: Start difference. First operand 236 states and 255 transitions. Second operand 4 states. [2020-09-04 20:27:13,972 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:14,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:14,827 INFO L93 Difference]: Finished difference Result 347 states and 389 transitions. [2020-09-04 20:27:14,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:27:14,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-04 20:27:14,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:14,833 INFO L225 Difference]: With dead ends: 347 [2020-09-04 20:27:14,833 INFO L226 Difference]: Without dead ends: 260 [2020-09-04 20:27:14,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 20:27:14,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-04 20:27:14,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 226. [2020-09-04 20:27:14,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-04 20:27:14,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 242 transitions. [2020-09-04 20:27:14,912 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 242 transitions. Word has length 143 [2020-09-04 20:27:14,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:14,913 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 242 transitions. [2020-09-04 20:27:14,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:27:14,913 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 242 transitions. [2020-09-04 20:27:14,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-04 20:27:14,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:14,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:27:14,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:27:14,916 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:14,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:14,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1038765417, now seen corresponding path program 1 times [2020-09-04 20:27:14,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:14,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239486864] [2020-09-04 20:27:14,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:15,321 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:15,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:15,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:15,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:15,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:15,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:15,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-04 20:27:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:15,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 20:27:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:15,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:27:15,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [239486864] [2020-09-04 20:27:15,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:15,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:27:15,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265469882] [2020-09-04 20:27:15,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:27:15,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:15,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:27:15,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:27:15,501 INFO L87 Difference]: Start difference. First operand 226 states and 242 transitions. Second operand 9 states. [2020-09-04 20:27:16,041 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:27:16,449 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:27:16,755 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:27:17,061 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:17,378 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:27:17,701 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:18,661 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:20,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:20,424 INFO L93 Difference]: Finished difference Result 585 states and 671 transitions. [2020-09-04 20:27:20,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 20:27:20,425 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2020-09-04 20:27:20,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:20,430 INFO L225 Difference]: With dead ends: 585 [2020-09-04 20:27:20,430 INFO L226 Difference]: Without dead ends: 469 [2020-09-04 20:27:20,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-04 20:27:20,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-04 20:27:20,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 394. [2020-09-04 20:27:20,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-04 20:27:20,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 436 transitions. [2020-09-04 20:27:20,594 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 436 transitions. Word has length 152 [2020-09-04 20:27:20,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:20,595 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 436 transitions. [2020-09-04 20:27:20,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:27:20,595 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 436 transitions. [2020-09-04 20:27:20,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-04 20:27:20,598 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:20,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:27:20,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:27:20,599 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:20,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:20,599 INFO L82 PathProgramCache]: Analyzing trace with hash -66041728, now seen corresponding path program 1 times [2020-09-04 20:27:20,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:20,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978879908] [2020-09-04 20:27:20,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:20,946 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:20,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:21,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:21,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:21,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:21,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:21,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:21,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-04 20:27:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:21,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:27:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:21,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 20:27:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:21,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-04 20:27:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:21,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:27:21,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978879908] [2020-09-04 20:27:21,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:21,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 20:27:21,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338723221] [2020-09-04 20:27:21,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 20:27:21,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:21,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 20:27:21,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-04 20:27:21,107 INFO L87 Difference]: Start difference. First operand 394 states and 436 transitions. Second operand 6 states. [2020-09-04 20:27:21,561 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:27:23,593 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:24,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:24,349 INFO L93 Difference]: Finished difference Result 984 states and 1157 transitions. [2020-09-04 20:27:24,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 20:27:24,351 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-09-04 20:27:24,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:24,360 INFO L225 Difference]: With dead ends: 984 [2020-09-04 20:27:24,361 INFO L226 Difference]: Without dead ends: 700 [2020-09-04 20:27:24,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-04 20:27:24,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-09-04 20:27:24,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 584. [2020-09-04 20:27:24,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-09-04 20:27:24,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 646 transitions. [2020-09-04 20:27:24,593 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 646 transitions. Word has length 160 [2020-09-04 20:27:24,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:24,595 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 646 transitions. [2020-09-04 20:27:24,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 20:27:24,595 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 646 transitions. [2020-09-04 20:27:24,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-04 20:27:24,597 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:24,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:27:24,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:27:24,598 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:24,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:24,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1164437593, now seen corresponding path program 1 times [2020-09-04 20:27:24,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:24,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752791067] [2020-09-04 20:27:24,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:25,017 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:25,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:25,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:25,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:25,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:25,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:25,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 20:27:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:25,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-04 20:27:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:25,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-04 20:27:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:25,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:27:25,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1752791067] [2020-09-04 20:27:25,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:25,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:27:25,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206497921] [2020-09-04 20:27:25,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:27:25,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:25,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:27:25,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:27:25,198 INFO L87 Difference]: Start difference. First operand 584 states and 646 transitions. Second operand 9 states. [2020-09-04 20:27:25,707 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:27:26,848 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:27,104 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:27:27,459 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:27,789 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:27:28,090 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:27:28,391 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:28,689 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:29,140 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:30,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:30,515 INFO L93 Difference]: Finished difference Result 1577 states and 1836 transitions. [2020-09-04 20:27:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 20:27:30,516 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-04 20:27:30,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:30,524 INFO L225 Difference]: With dead ends: 1577 [2020-09-04 20:27:30,525 INFO L226 Difference]: Without dead ends: 1103 [2020-09-04 20:27:30,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-04 20:27:30,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-09-04 20:27:30,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 975. [2020-09-04 20:27:30,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 975 states. [2020-09-04 20:27:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1086 transitions. [2020-09-04 20:27:30,913 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1086 transitions. Word has length 161 [2020-09-04 20:27:30,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:30,914 INFO L479 AbstractCegarLoop]: Abstraction has 975 states and 1086 transitions. [2020-09-04 20:27:30,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:27:30,914 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1086 transitions. [2020-09-04 20:27:30,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-04 20:27:30,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:30,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:27:30,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:27:30,917 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:30,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:30,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1435242309, now seen corresponding path program 1 times [2020-09-04 20:27:30,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:30,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97469669] [2020-09-04 20:27:30,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:31,330 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:31,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:31,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:31,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:31,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:31,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:31,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:27:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:31,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-04 20:27:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:31,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-04 20:27:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:31,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-04 20:27:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:31,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:27:31,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97469669] [2020-09-04 20:27:31,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:31,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 20:27:31,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988628686] [2020-09-04 20:27:31,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 20:27:31,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:31,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 20:27:31,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:27:31,503 INFO L87 Difference]: Start difference. First operand 975 states and 1086 transitions. Second operand 10 states. [2020-09-04 20:27:32,047 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:27:33,432 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:33,771 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:27:34,134 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:34,457 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:27:34,752 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:35,382 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:27:35,696 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:36,102 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:36,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:36,973 INFO L93 Difference]: Finished difference Result 1235 states and 1449 transitions. [2020-09-04 20:27:36,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-04 20:27:36,974 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-09-04 20:27:36,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:36,982 INFO L225 Difference]: With dead ends: 1235 [2020-09-04 20:27:36,982 INFO L226 Difference]: Without dead ends: 1232 [2020-09-04 20:27:36,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-04 20:27:36,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2020-09-04 20:27:37,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 975. [2020-09-04 20:27:37,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 975 states. [2020-09-04 20:27:37,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1083 transitions. [2020-09-04 20:27:37,276 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1083 transitions. Word has length 166 [2020-09-04 20:27:37,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:37,276 INFO L479 AbstractCegarLoop]: Abstraction has 975 states and 1083 transitions. [2020-09-04 20:27:37,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 20:27:37,277 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1083 transitions. [2020-09-04 20:27:37,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-04 20:27:37,280 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:37,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:27:37,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 20:27:37,281 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:37,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:37,281 INFO L82 PathProgramCache]: Analyzing trace with hash 350443365, now seen corresponding path program 1 times [2020-09-04 20:27:37,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:37,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159442971] [2020-09-04 20:27:37,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:37,616 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:37,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:37,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:37,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:37,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:37,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:37,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:27:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:37,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:27:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:37,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:27:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:37,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:27:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:37,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:27:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:37,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-04 20:27:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:37,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-04 20:27:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:27:37,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159442971] [2020-09-04 20:27:37,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:37,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 20:27:37,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109691245] [2020-09-04 20:27:37,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 20:27:37,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:37,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 20:27:37,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:27:37,787 INFO L87 Difference]: Start difference. First operand 975 states and 1083 transitions. Second operand 10 states. [2020-09-04 20:27:39,253 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:39,570 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:27:39,899 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-04 20:27:40,220 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:40,558 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:27:40,873 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:42,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:42,098 INFO L93 Difference]: Finished difference Result 2241 states and 2651 transitions. [2020-09-04 20:27:42,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 20:27:42,100 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2020-09-04 20:27:42,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:42,109 INFO L225 Difference]: With dead ends: 2241 [2020-09-04 20:27:42,109 INFO L226 Difference]: Without dead ends: 1376 [2020-09-04 20:27:42,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-04 20:27:42,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2020-09-04 20:27:42,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1007. [2020-09-04 20:27:42,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1007 states. [2020-09-04 20:27:42,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1115 transitions. [2020-09-04 20:27:42,397 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1115 transitions. Word has length 190 [2020-09-04 20:27:42,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:42,398 INFO L479 AbstractCegarLoop]: Abstraction has 1007 states and 1115 transitions. [2020-09-04 20:27:42,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 20:27:42,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1115 transitions. [2020-09-04 20:27:42,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-04 20:27:42,401 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:42,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:27:42,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 20:27:42,402 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:42,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:42,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1071797499, now seen corresponding path program 1 times [2020-09-04 20:27:42,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:42,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334554323] [2020-09-04 20:27:42,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,703 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:42,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:27:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:27:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:27:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:27:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:27:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-04 20:27:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-04 20:27:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:42,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:27:42,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334554323] [2020-09-04 20:27:42,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:42,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-04 20:27:42,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095913015] [2020-09-04 20:27:42,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-04 20:27:42,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:42,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-04 20:27:42,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-09-04 20:27:42,923 INFO L87 Difference]: Start difference. First operand 1007 states and 1115 transitions. Second operand 13 states. [2020-09-04 20:27:43,599 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:27:43,909 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:27:44,213 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:44,521 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:27:44,807 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:45,771 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:46,084 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:27:46,460 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:46,799 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:27:47,103 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:48,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:48,566 INFO L93 Difference]: Finished difference Result 2317 states and 2760 transitions. [2020-09-04 20:27:48,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 20:27:48,566 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 190 [2020-09-04 20:27:48,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:48,575 INFO L225 Difference]: With dead ends: 2317 [2020-09-04 20:27:48,575 INFO L226 Difference]: Without dead ends: 1420 [2020-09-04 20:27:48,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-09-04 20:27:48,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2020-09-04 20:27:48,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1031. [2020-09-04 20:27:48,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-09-04 20:27:48,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1139 transitions. [2020-09-04 20:27:48,912 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1139 transitions. Word has length 190 [2020-09-04 20:27:48,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:48,912 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1139 transitions. [2020-09-04 20:27:48,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-04 20:27:48,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1139 transitions. [2020-09-04 20:27:48,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-04 20:27:48,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:48,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:27:48,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 20:27:48,917 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:48,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:48,917 INFO L82 PathProgramCache]: Analyzing trace with hash -863448728, now seen corresponding path program 1 times [2020-09-04 20:27:48,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:48,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1707797839] [2020-09-04 20:27:48,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:49,286 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:49,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:49,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:49,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:49,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:49,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:49,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:27:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:49,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:27:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:49,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:27:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:49,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:27:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:49,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:27:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:49,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-04 20:27:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:49,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-04 20:27:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:49,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:27:49,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1707797839] [2020-09-04 20:27:49,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:49,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 20:27:49,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25100134] [2020-09-04 20:27:49,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 20:27:49,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:49,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 20:27:49,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-04 20:27:49,528 INFO L87 Difference]: Start difference. First operand 1031 states and 1139 transitions. Second operand 7 states. [2020-09-04 20:27:50,155 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:27:50,809 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:27:53,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:53,822 INFO L93 Difference]: Finished difference Result 3474 states and 4215 transitions. [2020-09-04 20:27:53,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 20:27:53,823 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-09-04 20:27:53,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:53,837 INFO L225 Difference]: With dead ends: 3474 [2020-09-04 20:27:53,838 INFO L226 Difference]: Without dead ends: 2553 [2020-09-04 20:27:53,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-04 20:27:53,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2020-09-04 20:27:54,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 2075. [2020-09-04 20:27:54,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2075 states. [2020-09-04 20:27:54,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2355 transitions. [2020-09-04 20:27:54,729 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2355 transitions. Word has length 190 [2020-09-04 20:27:54,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:54,729 INFO L479 AbstractCegarLoop]: Abstraction has 2075 states and 2355 transitions. [2020-09-04 20:27:54,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 20:27:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2355 transitions. [2020-09-04 20:27:54,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-04 20:27:54,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:54,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:27:54,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 20:27:54,735 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:54,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:54,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1653898682, now seen corresponding path program 1 times [2020-09-04 20:27:54,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:54,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140657534] [2020-09-04 20:27:54,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:27:54,811 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:27:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:27:54,880 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:27:55,187 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:27:55,188 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:27:55,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 20:27:55,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:27:55 BoogieIcfgContainer [2020-09-04 20:27:55,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:27:55,597 INFO L168 Benchmark]: Toolchain (without parser) took 47376.60 ms. Allocated memory was 140.5 MB in the beginning and 1.1 GB in the end (delta: 930.1 MB). Free memory was 102.0 MB in the beginning and 915.9 MB in the end (delta: -813.8 MB). Peak memory consumption was 913.1 MB. Max. memory is 7.1 GB. [2020-09-04 20:27:55,602 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 20:27:55,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.81 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 175.1 MB in the end (delta: -73.3 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2020-09-04 20:27:55,604 INFO L168 Benchmark]: Boogie Preprocessor took 98.47 ms. Allocated memory is still 205.0 MB. Free memory was 175.1 MB in the beginning and 171.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-04 20:27:55,608 INFO L168 Benchmark]: RCFGBuilder took 1189.95 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 171.2 MB in the beginning and 181.7 MB in the end (delta: -10.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2020-09-04 20:27:55,610 INFO L168 Benchmark]: TraceAbstraction took 45409.34 ms. Allocated memory was 238.6 MB in the beginning and 1.1 GB in the end (delta: 832.0 MB). Free memory was 181.7 MB in the beginning and 915.9 MB in the end (delta: -734.2 MB). Peak memory consumption was 894.7 MB. Max. memory is 7.1 GB. [2020-09-04 20:27:55,616 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.81 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 175.1 MB in the end (delta: -73.3 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.47 ms. Allocated memory is still 205.0 MB. Free memory was 175.1 MB in the beginning and 171.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1189.95 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 171.2 MB in the beginning and 181.7 MB in the end (delta: -10.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 45409.34 ms. Allocated memory was 238.6 MB in the beginning and 1.1 GB in the end (delta: 832.0 MB). Free memory was 181.7 MB in the beginning and 915.9 MB in the end (delta: -734.2 MB). Peak memory consumption was 894.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 145]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=167, \old(head)=176, \old(methaneLevelCritical)=143, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=136, cleanupTimeShifts=174, head={176:167}, methaneLevelCritical=143, pumpRunning=132, systemActive=131, waterLevel=1] [L48] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=167, \old(methaneLevelCritical)=143, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=136, cleanupTimeShifts=174, head={176:167}, methaneLevelCritical=0, pumpRunning=132, systemActive=131, waterLevel=1] [L250] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=167, \old(methaneLevelCritical)=143, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=136, cleanupTimeShifts=174, head={176:167}, methaneLevelCritical=0, pumpRunning=0, systemActive=131, waterLevel=1] [L251] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=167, \old(methaneLevelCritical)=143, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=136, cleanupTimeShifts=174, head={176:167}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L455] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=174, \old(head)=167, \old(head)=176, \old(methaneLevelCritical)=143, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=136, cleanupTimeShifts=4, head={176:167}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L720] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=167, \old(methaneLevelCritical)=143, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L528] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L529] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L533] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L446] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L449] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L450] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L535] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L535] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L537] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L539] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L540] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L181] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L182] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L183] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L184] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L185] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L188] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L190] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L192] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L198] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L200] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L202] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L202] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L208] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L210] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L212] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L80] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L212] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L218] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L220] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L235] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L257] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L264] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L266] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L286] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L289] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L291] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L383] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L384] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L385] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L389] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L127] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L134] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L135] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L389] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L389] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L391] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L394] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L396] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L397] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L291] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L291] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L293] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L295] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L314] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L295] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L266] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L272] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L152] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L153] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L86] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L89] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L157] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L159] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L161] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L338] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L341] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L342] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L161] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L161] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L163] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L165] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L145] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 612 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 44.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 36.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2020 SDtfs, 3655 SDslu, 3833 SDs, 0 SdLazy, 7361 SolverSat, 1103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 322 GetRequests, 204 SyntacticMatches, 3 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 15.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2075occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 1887 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 1689 NumberOfCodeBlocks, 1689 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1485 ConstructedInterpolants, 0 QuantifiedInterpolants, 637577 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...