./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 35231ca8045aab57f76a1443f240aec6c4fd98e44f4fcbe92b2ad0643ba01515 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:50:52,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:50:52,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:50:52,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:50:52,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:50:52,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:50:52,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:50:52,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:50:52,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:50:52,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:50:52,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:50:52,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:50:52,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:50:52,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:50:52,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:50:52,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:50:52,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:50:52,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:50:52,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:50:52,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:50:52,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:50:52,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:50:52,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:50:52,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:50:52,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:50:52,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:50:52,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:50:52,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:50:52,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:50:52,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:50:52,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:50:52,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:50:52,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:50:52,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:50:52,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:50:52,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:50:52,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:50:52,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:50:52,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:50:52,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:50:52,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:50:52,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-02 20:50:52,582 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:50:52,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:50:52,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:50:52,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:50:52,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:50:52,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:50:52,586 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:50:52,586 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:50:52,586 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:50:52,586 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:50:52,588 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:50:52,588 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:50:52,588 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:50:52,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:50:52,589 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:50:52,589 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:50:52,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:50:52,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:50:52,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:50:52,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:50:52,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:50:52,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:50:52,591 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:50:52,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:50:52,593 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:50:52,593 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:50:52,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:50:52,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:50:52,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:50:52,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:50:52,595 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:50:52,596 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:50:52,596 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35231ca8045aab57f76a1443f240aec6c4fd98e44f4fcbe92b2ad0643ba01515 [2022-11-02 20:50:52,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:50:52,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:50:52,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:50:52,987 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:50:52,988 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:50:52,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c [2022-11-02 20:50:53,082 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/data/8c55a5e22/77b2b50045df420c81da056d5af8f40f/FLAG3f16c4693 [2022-11-02 20:50:53,828 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:50:53,829 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c [2022-11-02 20:50:53,842 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/data/8c55a5e22/77b2b50045df420c81da056d5af8f40f/FLAG3f16c4693 [2022-11-02 20:50:54,102 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/data/8c55a5e22/77b2b50045df420c81da056d5af8f40f [2022-11-02 20:50:54,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:50:54,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:50:54,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:50:54,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:50:54,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:50:54,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:50:54" (1/1) ... [2022-11-02 20:50:54,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7af53ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:54, skipping insertion in model container [2022-11-02 20:50:54,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:50:54" (1/1) ... [2022-11-02 20:50:54,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:50:54,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:50:54,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c[18052,18065] [2022-11-02 20:50:54,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:50:54,602 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:50:54,675 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/sv-benchmarks/c/product-lines/minepump_spec2_product18.cil.c[18052,18065] [2022-11-02 20:50:54,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:50:54,694 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:50:54,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:54 WrapperNode [2022-11-02 20:50:54,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:50:54,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:50:54,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:50:54,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:50:54,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:54" (1/1) ... [2022-11-02 20:50:54,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:54" (1/1) ... [2022-11-02 20:50:54,754 INFO L138 Inliner]: procedures = 54, calls = 151, calls flagged for inlining = 48, calls inlined = 49, statements flattened = 396 [2022-11-02 20:50:54,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:50:54,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:50:54,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:50:54,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:50:54,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:54" (1/1) ... [2022-11-02 20:50:54,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:54" (1/1) ... [2022-11-02 20:50:54,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:54" (1/1) ... [2022-11-02 20:50:54,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:54" (1/1) ... [2022-11-02 20:50:54,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:54" (1/1) ... [2022-11-02 20:50:54,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:54" (1/1) ... [2022-11-02 20:50:54,794 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:54" (1/1) ... [2022-11-02 20:50:54,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:54" (1/1) ... [2022-11-02 20:50:54,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:50:54,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:50:54,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:50:54,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:50:54,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:54" (1/1) ... [2022-11-02 20:50:54,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:50:54,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:54,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:50:54,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:50:54,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:50:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:50:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:50:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:50:55,010 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:50:55,013 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:50:55,438 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:50:55,446 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:50:55,447 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:50:55,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:50:55 BoogieIcfgContainer [2022-11-02 20:50:55,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:50:55,450 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:50:55,450 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:50:55,455 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:50:55,456 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:50:55,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:50:54" (1/3) ... [2022-11-02 20:50:55,457 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8667a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:50:55, skipping insertion in model container [2022-11-02 20:50:55,457 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:50:55,457 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:54" (2/3) ... [2022-11-02 20:50:55,458 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8667a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:50:55, skipping insertion in model container [2022-11-02 20:50:55,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:50:55,458 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:50:55" (3/3) ... [2022-11-02 20:50:55,459 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product18.cil.c [2022-11-02 20:50:55,538 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:50:55,538 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:50:55,538 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:50:55,538 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:50:55,538 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:50:55,538 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:50:55,539 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:50:55,539 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:50:55,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3773584905660377) internal successors, (146), 106 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:55,596 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2022-11-02 20:50:55,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:50:55,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:50:55,619 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:55,619 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:55,619 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:50:55,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3773584905660377) internal successors, (146), 106 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:55,625 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2022-11-02 20:50:55,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:50:55,626 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:50:55,627 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:55,627 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:55,645 INFO L748 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 34#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret19#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 101#L414true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 15#L407true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 17#L422true main_#t~ret19#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret19#1;havoc main_#t~ret19#1; 14#L378true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 81#L350true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 41#L890true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet15#1, test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 8#L234-2true [2022-11-02 20:50:55,646 INFO L750 eck$LassoCheckResult]: Loop: 8#L234-2true assume !false; 94#L235true assume test_~splverifierCounter~0#1 < 4; 53#L236true test_~tmp~2#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 10#L244true assume !(0 != test_~tmp~2#1); 31#L244-2true test_~tmp___0~1#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 47#L254true assume !(0 != test_~tmp___0~1#1); 28#L254-2true test_~tmp___2~0#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 55#L264true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 24#L217true assume { :end_inline_startSystem } true; 22#L272-2true assume { :begin_inline_timeShift } true; 105#L68true assume !(0 != ~pumpRunning~0); 64#L68-2true assume !(0 != ~systemActive~0); 29#L75-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 27#L471true __utac_acc__Specification2_spec__2_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret49#1;havoc __utac_acc__Specification2_spec__2_#t~ret49#1; 108#L901true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 72#L901-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 32#L85true assume { :end_inline_timeShift } true; 8#L234-2true [2022-11-02 20:50:55,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:55,661 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-11-02 20:50:55,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:55,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916517933] [2022-11-02 20:50:55,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:55,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:50:55,829 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:50:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:50:55,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:50:55,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:55,927 INFO L85 PathProgramCache]: Analyzing trace with hash -2068879063, now seen corresponding path program 1 times [2022-11-02 20:50:55,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:55,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019727193] [2022-11-02 20:50:55,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:55,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:56,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:56,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:56,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019727193] [2022-11-02 20:50:56,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019727193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:56,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:56,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:50:56,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244121625] [2022-11-02 20:50:56,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:56,088 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 20:50:56,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:56,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:50:56,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:56,127 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 1.3773584905660377) internal successors, (146), 106 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:56,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:56,195 INFO L93 Difference]: Finished difference Result 104 states and 133 transitions. [2022-11-02 20:50:56,196 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 133 transitions. [2022-11-02 20:50:56,201 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2022-11-02 20:50:56,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 94 states and 122 transitions. [2022-11-02 20:50:56,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2022-11-02 20:50:56,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2022-11-02 20:50:56,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 122 transitions. [2022-11-02 20:50:56,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:50:56,221 INFO L218 hiAutomatonCegarLoop]: Abstraction has 94 states and 122 transitions. [2022-11-02 20:50:56,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 122 transitions. [2022-11-02 20:50:56,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-11-02 20:50:56,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.297872340425532) internal successors, (122), 93 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:56,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 122 transitions. [2022-11-02 20:50:56,273 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 122 transitions. [2022-11-02 20:50:56,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:50:56,289 INFO L428 stractBuchiCegarLoop]: Abstraction has 94 states and 122 transitions. [2022-11-02 20:50:56,289 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:50:56,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 122 transitions. [2022-11-02 20:50:56,292 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2022-11-02 20:50:56,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:50:56,293 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:50:56,294 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:56,294 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:56,295 INFO L748 eck$LassoCheckResult]: Stem: 311#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 298#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret19#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 299#L414 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 253#L407 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 254#L422 main_#t~ret19#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret19#1;havoc main_#t~ret19#1; 251#L378 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 252#L350 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 290#L890 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet15#1, test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 229#L234-2 [2022-11-02 20:50:56,299 INFO L750 eck$LassoCheckResult]: Loop: 229#L234-2 assume !false; 230#L235 assume test_~splverifierCounter~0#1 < 4; 304#L236 test_~tmp~2#1 := test_#t~nondet15#1;havoc test_#t~nondet15#1; 240#L244 assume !(0 != test_~tmp~2#1); 242#L244-2 test_~tmp___0~1#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 284#L254 assume !(0 != test_~tmp___0~1#1); 248#L254-2 test_~tmp___2~0#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 280#L264 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 274#L217 assume { :end_inline_startSystem } true; 269#L272-2 assume { :begin_inline_timeShift } true; 270#L68 assume !(0 != ~pumpRunning~0); 238#L68-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret4#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 239#L100 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 288#L92-1 assume { :end_inline_processEnvironment__wrappee__base } true; 231#L100-1 assume { :end_inline_processEnvironment } true; 232#L75-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 278#L471 __utac_acc__Specification2_spec__2_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret49#1;havoc __utac_acc__Specification2_spec__2_#t~ret49#1; 279#L901 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 271#L901-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 272#L85 assume { :end_inline_timeShift } true; 229#L234-2 [2022-11-02 20:50:56,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:56,300 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-11-02 20:50:56,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:56,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114590003] [2022-11-02 20:50:56,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:56,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:56,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:50:56,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:50:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:50:56,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:50:56,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:56,397 INFO L85 PathProgramCache]: Analyzing trace with hash -438821554, now seen corresponding path program 1 times [2022-11-02 20:50:56,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:56,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382778994] [2022-11-02 20:50:56,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:56,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:50:56,422 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:50:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:50:56,443 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:50:56,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:56,445 INFO L85 PathProgramCache]: Analyzing trace with hash 933704119, now seen corresponding path program 1 times [2022-11-02 20:50:56,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:56,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220011379] [2022-11-02 20:50:56,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:56,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:50:56,492 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:50:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:50:56,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:51:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:51:01,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:51:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:51:01,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:51:01 BoogieIcfgContainer [2022-11-02 20:51:01,707 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 20:51:01,708 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:51:01,708 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:51:01,709 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:51:01,709 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:50:55" (3/4) ... [2022-11-02 20:51:01,712 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-02 20:51:01,855 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:51:01,855 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:51:01,856 INFO L158 Benchmark]: Toolchain (without parser) took 7745.84ms. Allocated memory was 104.9MB in the beginning and 188.7MB in the end (delta: 83.9MB). Free memory was 68.2MB in the beginning and 84.0MB in the end (delta: -15.8MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2022-11-02 20:51:01,857 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 104.9MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:51:01,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 579.34ms. Allocated memory is still 104.9MB. Free memory was 68.0MB in the beginning and 73.8MB in the end (delta: -5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:51:01,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.19ms. Allocated memory is still 104.9MB. Free memory was 73.8MB in the beginning and 70.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:51:01,859 INFO L158 Benchmark]: Boogie Preprocessor took 32.89ms. Allocated memory is still 104.9MB. Free memory was 70.7MB in the beginning and 69.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:51:01,860 INFO L158 Benchmark]: RCFGBuilder took 649.25ms. Allocated memory is still 104.9MB. Free memory was 68.7MB in the beginning and 48.8MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-02 20:51:01,861 INFO L158 Benchmark]: BuchiAutomizer took 6257.25ms. Allocated memory was 104.9MB in the beginning and 188.7MB in the end (delta: 83.9MB). Free memory was 48.8MB in the beginning and 86.1MB in the end (delta: -37.3MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2022-11-02 20:51:01,862 INFO L158 Benchmark]: Witness Printer took 147.12ms. Allocated memory is still 188.7MB. Free memory was 86.1MB in the beginning and 84.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:51:01,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 104.9MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 579.34ms. Allocated memory is still 104.9MB. Free memory was 68.0MB in the beginning and 73.8MB in the end (delta: -5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.19ms. Allocated memory is still 104.9MB. Free memory was 73.8MB in the beginning and 70.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.89ms. Allocated memory is still 104.9MB. Free memory was 70.7MB in the beginning and 69.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 649.25ms. Allocated memory is still 104.9MB. Free memory was 68.7MB in the beginning and 48.8MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 6257.25ms. Allocated memory was 104.9MB in the beginning and 188.7MB in the end (delta: 83.9MB). Free memory was 48.8MB in the beginning and 86.1MB in the end (delta: -37.3MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * Witness Printer took 147.12ms. Allocated memory is still 188.7MB. Free memory was 86.1MB in the beginning and 84.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 94 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 5.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 128 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 128 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 130 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 234]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L291] int cleanupTimeShifts = 4; [L428] int waterLevel = 1; [L429] int methaneLevelCritical = 0; [L686] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L884] int methAndRunningLastTime ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L369] int retValue_acc ; [L370] int tmp ; [L374] FCALL select_helpers() [L375] FCALL select_features() [L376] CALL, EXPR valid_product() [L418] int retValue_acc ; [L421] retValue_acc = 1 [L422] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L376] RET, EXPR valid_product() [L376] tmp = valid_product() [L378] COND TRUE \read(tmp) [L380] FCALL setup() [L381] CALL runTest() [L359] CALL __utac_acc__Specification2_spec__1() [L889] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L359] RET __utac_acc__Specification2_spec__1() [L360] CALL test() [L225] int splverifierCounter ; [L226] int tmp ; [L227] int tmp___0 ; [L228] int tmp___1 ; [L229] int tmp___2 ; [L232] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L234] COND TRUE 1 [L236] COND TRUE splverifierCounter < 4 [L242] tmp = __VERIFIER_nondet_int() [L244] COND FALSE !(\read(tmp)) [L252] tmp___0 = __VERIFIER_nondet_int() [L254] COND FALSE !(\read(tmp___0)) [L262] tmp___2 = __VERIFIER_nondet_int() [L264] COND TRUE \read(tmp___2) [L266] CALL startSystem() [L216] systemActive = 1 [L266] RET startSystem() [L279] CALL timeShift() [L68] COND FALSE !(\read(pumpRunning)) [L75] COND TRUE \read(systemActive) [L77] CALL processEnvironment() [L97] int tmp ; [L100] COND FALSE !(\read(pumpRunning)) [L115] FCALL processEnvironment__wrappee__base() [L77] RET processEnvironment() [L83] CALL __utac_acc__Specification2_spec__2() [L894] int tmp ; [L895] int tmp___0 ; [L899] CALL, EXPR isMethaneLevelCritical() [L467] int retValue_acc ; [L470] retValue_acc = methaneLevelCritical [L471] return (retValue_acc); [L899] RET, EXPR isMethaneLevelCritical() [L899] tmp = isMethaneLevelCritical() [L901] COND FALSE !(\read(tmp)) [L917] methAndRunningLastTime = 0 [L83] RET __utac_acc__Specification2_spec__2() [L279] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 234]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L291] int cleanupTimeShifts = 4; [L428] int waterLevel = 1; [L429] int methaneLevelCritical = 0; [L686] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L884] int methAndRunningLastTime ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L369] int retValue_acc ; [L370] int tmp ; [L374] FCALL select_helpers() [L375] FCALL select_features() [L376] CALL, EXPR valid_product() [L418] int retValue_acc ; [L421] retValue_acc = 1 [L422] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L376] RET, EXPR valid_product() [L376] tmp = valid_product() [L378] COND TRUE \read(tmp) [L380] FCALL setup() [L381] CALL runTest() [L359] CALL __utac_acc__Specification2_spec__1() [L889] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L359] RET __utac_acc__Specification2_spec__1() [L360] CALL test() [L225] int splverifierCounter ; [L226] int tmp ; [L227] int tmp___0 ; [L228] int tmp___1 ; [L229] int tmp___2 ; [L232] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L234] COND TRUE 1 [L236] COND TRUE splverifierCounter < 4 [L242] tmp = __VERIFIER_nondet_int() [L244] COND FALSE !(\read(tmp)) [L252] tmp___0 = __VERIFIER_nondet_int() [L254] COND FALSE !(\read(tmp___0)) [L262] tmp___2 = __VERIFIER_nondet_int() [L264] COND TRUE \read(tmp___2) [L266] CALL startSystem() [L216] systemActive = 1 [L266] RET startSystem() [L279] CALL timeShift() [L68] COND FALSE !(\read(pumpRunning)) [L75] COND TRUE \read(systemActive) [L77] CALL processEnvironment() [L97] int tmp ; [L100] COND FALSE !(\read(pumpRunning)) [L115] FCALL processEnvironment__wrappee__base() [L77] RET processEnvironment() [L83] CALL __utac_acc__Specification2_spec__2() [L894] int tmp ; [L895] int tmp___0 ; [L899] CALL, EXPR isMethaneLevelCritical() [L467] int retValue_acc ; [L470] retValue_acc = methaneLevelCritical [L471] return (retValue_acc); [L899] RET, EXPR isMethaneLevelCritical() [L899] tmp = isMethaneLevelCritical() [L901] COND FALSE !(\read(tmp)) [L917] methAndRunningLastTime = 0 [L83] RET __utac_acc__Specification2_spec__2() [L279] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-02 20:51:02,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_606ddc2c-c2b2-4b84-9ef7-ad9914f05e29/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)