/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 05:55:14,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 05:55:14,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 05:55:14,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 05:55:14,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 05:55:14,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 05:55:14,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 05:55:14,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 05:55:14,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 05:55:14,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 05:55:14,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 05:55:14,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 05:55:14,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 05:55:14,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 05:55:14,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 05:55:14,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 05:55:14,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 05:55:14,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 05:55:14,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 05:55:14,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 05:55:14,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 05:55:14,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 05:55:14,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 05:55:14,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 05:55:14,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 05:55:14,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 05:55:14,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 05:55:14,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 05:55:14,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 05:55:14,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 05:55:14,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 05:55:14,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 05:55:14,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 05:55:14,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 05:55:14,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 05:55:14,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 05:55:14,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 05:55:14,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 05:55:14,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 05:55:14,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 05:55:14,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 05:55:14,806 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 05:55:14,834 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 05:55:14,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 05:55:14,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 05:55:14,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 05:55:14,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 05:55:14,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 05:55:14,836 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 05:55:14,836 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 05:55:14,836 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 05:55:14,837 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 05:55:14,837 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 05:55:14,838 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 05:55:14,838 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 05:55:14,838 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 05:55:14,838 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 05:55:14,838 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 05:55:14,838 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 05:55:14,838 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 05:55:14,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 05:55:14,839 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 05:55:14,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 05:55:14,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 05:55:14,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 05:55:14,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 05:55:14,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 05:55:14,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 05:55:14,840 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 05:55:14,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 05:55:14,841 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 05:55:14,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 05:55:14,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 05:55:14,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 05:55:14,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:55:14,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 05:55:14,842 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 05:55:14,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 05:55:14,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 05:55:14,842 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 05:55:14,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 05:55:14,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 05:55:14,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 05:55:14,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 05:55:15,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 05:55:15,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 05:55:15,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 05:55:15,094 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 05:55:15,096 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 05:55:15,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2023-04-01 05:55:16,337 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 05:55:16,568 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 05:55:16,568 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2023-04-01 05:55:16,580 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fab1741be/05b06e49dc4d4b6b964cc0e99d272fff/FLAG2b1227166 [2023-04-01 05:55:16,600 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fab1741be/05b06e49dc4d4b6b964cc0e99d272fff [2023-04-01 05:55:16,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 05:55:16,603 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 05:55:16,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 05:55:16,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 05:55:16,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 05:55:16,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:55:16" (1/1) ... [2023-04-01 05:55:16,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e964d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:16, skipping insertion in model container [2023-04-01 05:55:16,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:55:16" (1/1) ... [2023-04-01 05:55:16,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 05:55:16,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 05:55:16,857 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c[16679,16692] [2023-04-01 05:55:16,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:55:16,895 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 05:55:16,967 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c[16679,16692] [2023-04-01 05:55:16,976 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:55:17,009 INFO L208 MainTranslator]: Completed translation [2023-04-01 05:55:17,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:17 WrapperNode [2023-04-01 05:55:17,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 05:55:17,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 05:55:17,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 05:55:17,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 05:55:17,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:17" (1/1) ... [2023-04-01 05:55:17,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:17" (1/1) ... [2023-04-01 05:55:17,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:17" (1/1) ... [2023-04-01 05:55:17,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:17" (1/1) ... [2023-04-01 05:55:17,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:17" (1/1) ... [2023-04-01 05:55:17,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:17" (1/1) ... [2023-04-01 05:55:17,063 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:17" (1/1) ... [2023-04-01 05:55:17,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:17" (1/1) ... [2023-04-01 05:55:17,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 05:55:17,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 05:55:17,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 05:55:17,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 05:55:17,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:17" (1/1) ... [2023-04-01 05:55:17,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:55:17,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 05:55:17,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 05:55:17,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 05:55:17,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 05:55:17,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 05:55:17,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 05:55:17,139 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 05:55:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 05:55:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 05:55:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 05:55:17,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 05:55:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 05:55:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 05:55:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 05:55:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 05:55:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-01 05:55:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-01 05:55:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-04-01 05:55:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 05:55:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 05:55:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 05:55:17,142 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 05:55:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 05:55:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 05:55:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-01 05:55:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-01 05:55:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-01 05:55:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-01 05:55:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 05:55:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 05:55:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 05:55:17,143 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 05:55:17,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-04-01 05:55:17,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 05:55:17,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 05:55:17,144 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 05:55:17,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 05:55:17,144 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 05:55:17,144 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 05:55:17,144 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 05:55:17,144 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 05:55:17,144 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 05:55:17,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 05:55:17,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 05:55:17,145 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 05:55:17,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-01 05:55:17,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-01 05:55:17,146 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 05:55:17,146 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 05:55:17,146 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 05:55:17,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 05:55:17,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 05:55:17,147 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 05:55:17,147 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 05:55:17,147 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 05:55:17,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 05:55:17,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 05:55:17,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 05:55:17,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 05:55:17,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 05:55:17,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 05:55:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 05:55:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 05:55:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 05:55:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 05:55:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 05:55:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 05:55:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 05:55:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 05:55:17,148 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 05:55:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-01 05:55:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-01 05:55:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 05:55:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 05:55:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 05:55:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 05:55:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 05:55:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 05:55:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-01 05:55:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-01 05:55:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 05:55:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 05:55:17,149 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 05:55:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 05:55:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-04-01 05:55:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 05:55:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-01 05:55:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-01 05:55:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-01 05:55:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-01 05:55:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-04-01 05:55:17,150 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 05:55:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 05:55:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 05:55:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 05:55:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 05:55:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 05:55:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 05:55:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 05:55:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 05:55:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 05:55:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 05:55:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 05:55:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 05:55:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 05:55:17,341 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 05:55:17,344 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 05:55:17,938 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 05:55:18,102 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 05:55:18,103 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 05:55:18,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:55:18 BoogieIcfgContainer [2023-04-01 05:55:18,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 05:55:18,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 05:55:18,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 05:55:18,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 05:55:18,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 05:55:16" (1/3) ... [2023-04-01 05:55:18,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6c5e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:55:18, skipping insertion in model container [2023-04-01 05:55:18,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:55:17" (2/3) ... [2023-04-01 05:55:18,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6c5e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:55:18, skipping insertion in model container [2023-04-01 05:55:18,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:55:18" (3/3) ... [2023-04-01 05:55:18,118 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2023-04-01 05:55:18,133 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 05:55:18,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 05:55:18,255 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 05:55:18,261 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@29f1c31f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 05:55:18,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 05:55:18,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 75 states have (on average 1.28) internal successors, (96), 92 states have internal predecessors, (96), 53 states have call successors, (53), 32 states have call predecessors, (53), 32 states have return successors, (53), 46 states have call predecessors, (53), 53 states have call successors, (53) [2023-04-01 05:55:18,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-01 05:55:18,275 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:18,276 INFO L195 NwaCegarLoop]: 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] [2023-04-01 05:55:18,276 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:18,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:18,281 INFO L85 PathProgramCache]: Analyzing trace with hash 982780299, now seen corresponding path program 1 times [2023-04-01 05:55:18,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:18,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440694531] [2023-04-01 05:55:18,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:18,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:55:18,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:55:18,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:55:18,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440694531] [2023-04-01 05:55:18,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440694531] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:55:18,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:55:18,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 05:55:18,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800230747] [2023-04-01 05:55:18,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:55:18,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 05:55:18,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:55:18,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 05:55:18,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 05:55:18,568 INFO L87 Difference]: Start difference. First operand has 163 states, 75 states have (on average 1.28) internal successors, (96), 92 states have internal predecessors, (96), 53 states have call successors, (53), 32 states have call predecessors, (53), 32 states have return successors, (53), 46 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 05:55:18,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:55:18,671 INFO L93 Difference]: Finished difference Result 259 states and 318 transitions. [2023-04-01 05:55:18,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 05:55:18,674 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-04-01 05:55:18,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:55:18,685 INFO L225 Difference]: With dead ends: 259 [2023-04-01 05:55:18,685 INFO L226 Difference]: Without dead ends: 130 [2023-04-01 05:55:18,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 05:55:18,695 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:55:18,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:55:18,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-04-01 05:55:18,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2023-04-01 05:55:18,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 66 states have (on average 1.2424242424242424) internal successors, (82), 80 states have internal predecessors, (82), 38 states have call successors, (38), 30 states have call predecessors, (38), 25 states have return successors, (33), 26 states have call predecessors, (33), 33 states have call successors, (33) [2023-04-01 05:55:18,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 153 transitions. [2023-04-01 05:55:18,761 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 153 transitions. Word has length 42 [2023-04-01 05:55:18,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:55:18,762 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 153 transitions. [2023-04-01 05:55:18,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 05:55:18,762 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 153 transitions. [2023-04-01 05:55:18,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-01 05:55:18,765 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:18,765 INFO L195 NwaCegarLoop]: 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] [2023-04-01 05:55:18,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 05:55:18,765 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:18,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:18,766 INFO L85 PathProgramCache]: Analyzing trace with hash -866442984, now seen corresponding path program 1 times [2023-04-01 05:55:18,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:18,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732646552] [2023-04-01 05:55:18,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:18,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:55:18,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:55:18,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:55:18,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732646552] [2023-04-01 05:55:18,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732646552] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:55:18,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:55:18,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 05:55:18,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508314367] [2023-04-01 05:55:18,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:55:18,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 05:55:18,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:55:18,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 05:55:18,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:55:18,875 INFO L87 Difference]: Start difference. First operand 130 states and 153 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 05:55:18,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:55:18,936 INFO L93 Difference]: Finished difference Result 207 states and 243 transitions. [2023-04-01 05:55:18,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 05:55:18,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-04-01 05:55:18,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:55:18,940 INFO L225 Difference]: With dead ends: 207 [2023-04-01 05:55:18,941 INFO L226 Difference]: Without dead ends: 122 [2023-04-01 05:55:18,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:55:18,943 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 11 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 05:55:18,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 233 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 05:55:18,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-04-01 05:55:18,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2023-04-01 05:55:18,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 75 states have internal predecessors, (76), 35 states have call successors, (35), 29 states have call predecessors, (35), 25 states have return successors, (31), 24 states have call predecessors, (31), 31 states have call successors, (31) [2023-04-01 05:55:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 142 transitions. [2023-04-01 05:55:18,955 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 142 transitions. Word has length 43 [2023-04-01 05:55:18,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:55:18,955 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 142 transitions. [2023-04-01 05:55:18,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 05:55:18,955 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 142 transitions. [2023-04-01 05:55:18,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-01 05:55:18,957 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:18,957 INFO L195 NwaCegarLoop]: 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] [2023-04-01 05:55:18,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 05:55:18,957 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:18,958 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:18,958 INFO L85 PathProgramCache]: Analyzing trace with hash 260176403, now seen corresponding path program 1 times [2023-04-01 05:55:18,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:18,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809404643] [2023-04-01 05:55:18,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:18,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:55:19,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:55:19,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:55:19,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809404643] [2023-04-01 05:55:19,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809404643] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:55:19,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:55:19,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 05:55:19,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654581245] [2023-04-01 05:55:19,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:55:19,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 05:55:19,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:55:19,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 05:55:19,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-01 05:55:19,237 INFO L87 Difference]: Start difference. First operand 122 states and 142 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 05:55:19,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:55:19,598 INFO L93 Difference]: Finished difference Result 367 states and 442 transitions. [2023-04-01 05:55:19,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 05:55:19,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 47 [2023-04-01 05:55:19,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:55:19,607 INFO L225 Difference]: With dead ends: 367 [2023-04-01 05:55:19,607 INFO L226 Difference]: Without dead ends: 267 [2023-04-01 05:55:19,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-01 05:55:19,616 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 294 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 05:55:19,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 524 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 05:55:19,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-04-01 05:55:19,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 255. [2023-04-01 05:55:19,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 134 states have (on average 1.2761194029850746) internal successors, (171), 161 states have internal predecessors, (171), 69 states have call successors, (69), 57 states have call predecessors, (69), 51 states have return successors, (66), 49 states have call predecessors, (66), 65 states have call successors, (66) [2023-04-01 05:55:19,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 306 transitions. [2023-04-01 05:55:19,677 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 306 transitions. Word has length 47 [2023-04-01 05:55:19,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:55:19,681 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 306 transitions. [2023-04-01 05:55:19,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 05:55:19,681 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 306 transitions. [2023-04-01 05:55:19,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-01 05:55:19,688 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:19,688 INFO L195 NwaCegarLoop]: 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] [2023-04-01 05:55:19,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 05:55:19,689 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:19,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:19,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1753210039, now seen corresponding path program 1 times [2023-04-01 05:55:19,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:19,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862022553] [2023-04-01 05:55:19,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:19,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:55:19,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:55:19,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:55:19,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862022553] [2023-04-01 05:55:19,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862022553] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:55:19,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:55:19,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 05:55:19,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827225730] [2023-04-01 05:55:19,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:55:19,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 05:55:19,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:55:19,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 05:55:19,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 05:55:19,847 INFO L87 Difference]: Start difference. First operand 255 states and 306 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 05:55:20,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:55:20,053 INFO L93 Difference]: Finished difference Result 595 states and 751 transitions. [2023-04-01 05:55:20,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 05:55:20,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 51 [2023-04-01 05:55:20,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:55:20,059 INFO L225 Difference]: With dead ends: 595 [2023-04-01 05:55:20,059 INFO L226 Difference]: Without dead ends: 362 [2023-04-01 05:55:20,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-01 05:55:20,072 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 93 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:55:20,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 507 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:55:20,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-04-01 05:55:20,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 348. [2023-04-01 05:55:20,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 195 states have (on average 1.2256410256410257) internal successors, (239), 217 states have internal predecessors, (239), 82 states have call successors, (82), 76 states have call predecessors, (82), 70 states have return successors, (96), 69 states have call predecessors, (96), 78 states have call successors, (96) [2023-04-01 05:55:20,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 417 transitions. [2023-04-01 05:55:20,132 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 417 transitions. Word has length 51 [2023-04-01 05:55:20,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:55:20,132 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 417 transitions. [2023-04-01 05:55:20,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 05:55:20,133 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 417 transitions. [2023-04-01 05:55:20,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-04-01 05:55:20,134 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:20,134 INFO L195 NwaCegarLoop]: 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] [2023-04-01 05:55:20,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 05:55:20,135 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:20,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:20,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1251693863, now seen corresponding path program 1 times [2023-04-01 05:55:20,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:20,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131329883] [2023-04-01 05:55:20,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:20,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:55:20,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:55:20,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:55:20,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131329883] [2023-04-01 05:55:20,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131329883] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:55:20,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:55:20,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-01 05:55:20,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893803913] [2023-04-01 05:55:20,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:55:20,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-01 05:55:20,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:55:20,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-01 05:55:20,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-01 05:55:20,508 INFO L87 Difference]: Start difference. First operand 348 states and 417 transitions. Second operand has 12 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 4 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-04-01 05:55:20,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:55:20,989 INFO L93 Difference]: Finished difference Result 1087 states and 1311 transitions. [2023-04-01 05:55:20,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-01 05:55:20,990 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 4 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 74 [2023-04-01 05:55:20,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:55:20,996 INFO L225 Difference]: With dead ends: 1087 [2023-04-01 05:55:20,997 INFO L226 Difference]: Without dead ends: 761 [2023-04-01 05:55:20,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2023-04-01 05:55:21,000 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 285 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 05:55:21,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 984 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 05:55:21,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2023-04-01 05:55:21,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 743. [2023-04-01 05:55:21,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 433 states have (on average 1.2147806004618937) internal successors, (526), 472 states have internal predecessors, (526), 158 states have call successors, (158), 152 states have call predecessors, (158), 151 states have return successors, (197), 152 states have call predecessors, (197), 154 states have call successors, (197) [2023-04-01 05:55:21,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 881 transitions. [2023-04-01 05:55:21,068 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 881 transitions. Word has length 74 [2023-04-01 05:55:21,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:55:21,069 INFO L495 AbstractCegarLoop]: Abstraction has 743 states and 881 transitions. [2023-04-01 05:55:21,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 4 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-04-01 05:55:21,069 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 881 transitions. [2023-04-01 05:55:21,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-04-01 05:55:21,072 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:21,072 INFO L195 NwaCegarLoop]: 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] [2023-04-01 05:55:21,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 05:55:21,072 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:21,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:21,073 INFO L85 PathProgramCache]: Analyzing trace with hash 966206120, now seen corresponding path program 1 times [2023-04-01 05:55:21,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:21,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512003143] [2023-04-01 05:55:21,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:21,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:55:21,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:55:21,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:55:21,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512003143] [2023-04-01 05:55:21,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512003143] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:55:21,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:55:21,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 05:55:21,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398059320] [2023-04-01 05:55:21,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:55:21,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 05:55:21,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:55:21,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 05:55:21,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 05:55:21,216 INFO L87 Difference]: Start difference. First operand 743 states and 881 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-04-01 05:55:21,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:55:21,447 INFO L93 Difference]: Finished difference Result 2130 states and 2599 transitions. [2023-04-01 05:55:21,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 05:55:21,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 77 [2023-04-01 05:55:21,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:55:21,483 INFO L225 Difference]: With dead ends: 2130 [2023-04-01 05:55:21,483 INFO L226 Difference]: Without dead ends: 1409 [2023-04-01 05:55:21,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-01 05:55:21,486 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 102 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:55:21,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 532 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:55:21,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2023-04-01 05:55:21,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1357. [2023-04-01 05:55:21,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 804 states have (on average 1.2101990049751243) internal successors, (973), 868 states have internal predecessors, (973), 281 states have call successors, (281), 269 states have call predecessors, (281), 271 states have return successors, (363), 273 states have call predecessors, (363), 277 states have call successors, (363) [2023-04-01 05:55:21,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1617 transitions. [2023-04-01 05:55:21,611 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1617 transitions. Word has length 77 [2023-04-01 05:55:21,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:55:21,611 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 1617 transitions. [2023-04-01 05:55:21,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-04-01 05:55:21,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1617 transitions. [2023-04-01 05:55:21,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-04-01 05:55:21,614 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:55:21,614 INFO L195 NwaCegarLoop]: 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] [2023-04-01 05:55:21,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 05:55:21,614 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:55:21,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:55:21,615 INFO L85 PathProgramCache]: Analyzing trace with hash -658860920, now seen corresponding path program 1 times [2023-04-01 05:55:21,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:55:21,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814203702] [2023-04-01 05:55:21,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:55:21,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:55:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 05:55:21,641 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 05:55:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 05:55:21,691 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 05:55:21,691 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 05:55:21,692 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 05:55:21,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 05:55:21,696 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:55:21,700 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 05:55:21,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 05:55:21 BoogieIcfgContainer [2023-04-01 05:55:21,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 05:55:21,769 INFO L158 Benchmark]: Toolchain (without parser) took 5165.77ms. Allocated memory is still 314.6MB. Free memory was 284.8MB in the beginning and 154.8MB in the end (delta: 130.0MB). Peak memory consumption was 130.5MB. Max. memory is 8.0GB. [2023-04-01 05:55:21,769 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 202.4MB. Free memory is still 148.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 05:55:21,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.38ms. Allocated memory is still 314.6MB. Free memory was 284.8MB in the beginning and 265.8MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-01 05:55:21,769 INFO L158 Benchmark]: Boogie Preprocessor took 60.36ms. Allocated memory is still 314.6MB. Free memory was 265.8MB in the beginning and 262.3MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-01 05:55:21,769 INFO L158 Benchmark]: RCFGBuilder took 1034.78ms. Allocated memory is still 314.6MB. Free memory was 262.3MB in the beginning and 200.3MB in the end (delta: 62.0MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. [2023-04-01 05:55:21,770 INFO L158 Benchmark]: TraceAbstraction took 3658.35ms. Allocated memory is still 314.6MB. Free memory was 199.4MB in the beginning and 154.8MB in the end (delta: 44.6MB). Peak memory consumption was 45.5MB. Max. memory is 8.0GB. [2023-04-01 05:55:21,772 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 202.4MB. Free memory is still 148.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 406.38ms. Allocated memory is still 314.6MB. Free memory was 284.8MB in the beginning and 265.8MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.36ms. Allocated memory is still 314.6MB. Free memory was 265.8MB in the beginning and 262.3MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1034.78ms. Allocated memory is still 314.6MB. Free memory was 262.3MB in the beginning and 200.3MB in the end (delta: 62.0MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. * TraceAbstraction took 3658.35ms. Allocated memory is still 314.6MB. Free memory was 199.4MB in the beginning and 154.8MB in the end (delta: 44.6MB). Peak memory consumption was 45.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 816]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int pumpRunning = 0; [L501] int systemActive = 1; [L821] int cleanupTimeShifts = 4; [L918] int waterLevel = 1; [L919] int methaneLevelCritical = 0; [L894] int retValue_acc ; [L895] 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] [L899] 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] [L900] 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] [L901] 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] [L776] int retValue_acc ; [L779] retValue_acc = 1 [L780] return (retValue_acc); [L901] 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] [L901] tmp = valid_product() [L903] 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] [L905] 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] [L906] 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] [L888] 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] [L423] int splverifierCounter ; [L424] int tmp ; [L425] int tmp___0 ; [L426] int tmp___1 ; [L427] int tmp___2 ; [L430] 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] [L432] 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] [L434] COND TRUE splverifierCounter < 4 [L440] tmp = __VERIFIER_nondet_int() [L442] 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] [L444] 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] [L936] COND TRUE waterLevel < 2 [L937] waterLevel = waterLevel + 1 [L444] 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] [L450] tmp___0 = __VERIFIER_nondet_int() [L452] 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] [L454] 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] [L948] COND FALSE !(\read(methaneLevelCritical)) [L951] methaneLevelCritical = 1 [L454] 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] [L460] tmp___2 = __VERIFIER_nondet_int() [L462] COND FALSE !(\read(tmp___2)) [L468] tmp___1 = __VERIFIER_nondet_int() [L470] COND FALSE !(\read(tmp___1)) 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___1=0, tmp___2=0, waterLevel=2] [L479] 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] [L508] 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] [L515] 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] [L517] 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] [L589] 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] [L592] 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] [L607] CALL processEnvironment__wrappee__lowWaterSensor() 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] [L563] 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] [L566] 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] [L581] CALL processEnvironment__wrappee__highWaterSensor() 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] [L537] 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] [L540] 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] [L542] 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] [L686] int retValue_acc ; [L687] int tmp ; [L688] 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] [L692] 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] [L998] int retValue_acc ; [L1001] COND FALSE !(waterLevel < 2) [L1005] retValue_acc = 0 [L1006] return (retValue_acc); [L692] 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] [L692] tmp = isHighWaterSensorDry() [L694] COND FALSE !(\read(tmp)) [L697] tmp___0 = 1 [L699] retValue_acc = tmp___0 [L700] return (retValue_acc); [L542] 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] [L542] tmp = isHighWaterLevel() [L544] 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] [L546] 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] [L617] pumpRunning = 1 [L546] 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] [L581] RET processEnvironment__wrappee__highWaterSensor() 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] [L607] RET processEnvironment__wrappee__lowWaterSensor() 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] [L517] 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] [L523] 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] [L787] int tmp ; [L788] 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] [L792] 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] [L957] int retValue_acc ; [L960] retValue_acc = methaneLevelCritical [L961] return (retValue_acc); [L792] 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] [L792] tmp = isMethaneLevelCritical() [L794] 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] [L796] 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] [L641] int retValue_acc ; [L644] retValue_acc = pumpRunning [L645] return (retValue_acc); [L796] 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] [L796] tmp___0 = isPumpRunning() [L798] 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] [L800] 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] [L816] reach_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 44 procedures, 204 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 800 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 785 mSDsluCounter, 2925 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2081 mSDsCounter, 184 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1200 IncrementalHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 184 mSolverCounterUnsat, 844 mSDtfsCounter, 1200 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1357occurred in iteration=6, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 96 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 414 NumberOfCodeBlocks, 414 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 328 ConstructedInterpolants, 0 QuantifiedInterpolants, 587 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-04-01 05:55:21,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...