./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU --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 f807df90a44b5a362b78d711bb9d82091c60659923cb4423e7d2e565ee7e12b3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:48:00,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:48:00,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:48:00,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:48:00,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:48:00,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:48:00,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:48:00,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:48:00,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:48:00,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:48:00,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:48:00,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:48:00,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:48:00,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:48:00,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:48:00,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:48:00,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:48:00,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:48:00,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:48:00,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:48:00,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:48:00,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:48:00,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:48:00,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:48:00,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:48:00,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:48:00,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:48:00,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:48:00,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:48:00,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:48:00,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:48:00,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:48:00,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:48:00,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:48:00,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:48:00,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:48:00,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:48:00,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:48:00,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:48:00,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:48:00,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:48:00,593 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 22:48:00,659 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:48:00,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:48:00,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:48:00,661 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:48:00,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:48:00,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:48:00,664 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:48:00,665 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:48:00,665 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:48:00,665 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:48:00,667 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:48:00,667 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:48:00,667 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:48:00,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:48:00,668 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:48:00,668 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:48:00,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:48:00,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:48:00,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:48:00,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:48:00,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:48:00,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:48:00,670 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:48:00,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:48:00,671 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:48:00,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:48:00,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:48:00,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:48:00,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:48:00,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:48:00,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:48:00,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:48:00,677 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:48:00,677 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_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f807df90a44b5a362b78d711bb9d82091c60659923cb4423e7d2e565ee7e12b3 [2021-11-02 22:48:01,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:48:01,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:48:01,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:48:01,060 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:48:01,062 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:48:01,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/product-lines/minepump_spec1_product30.cil.c [2021-11-02 22:48:01,170 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/data/33d924053/b58a8744d5414e6d89b934d69fc72e78/FLAG89aacd732 [2021-11-02 22:48:01,931 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:48:01,940 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/sv-benchmarks/c/product-lines/minepump_spec1_product30.cil.c [2021-11-02 22:48:01,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/data/33d924053/b58a8744d5414e6d89b934d69fc72e78/FLAG89aacd732 [2021-11-02 22:48:02,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/data/33d924053/b58a8744d5414e6d89b934d69fc72e78 [2021-11-02 22:48:02,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:48:02,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:48:02,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:48:02,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:48:02,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:48:02,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:48:02" (1/1) ... [2021-11-02 22:48:02,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7769544e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:48:02, skipping insertion in model container [2021-11-02 22:48:02,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:48:02" (1/1) ... [2021-11-02 22:48:02,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:48:02,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:48:02,617 WARN L228 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_33ee8ea4-9371-4652-a4de-150004ed09d2/sv-benchmarks/c/product-lines/minepump_spec1_product30.cil.c[14361,14374] [2021-11-02 22:48:02,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:48:02,655 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:48:02,730 WARN L228 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_33ee8ea4-9371-4652-a4de-150004ed09d2/sv-benchmarks/c/product-lines/minepump_spec1_product30.cil.c[14361,14374] [2021-11-02 22:48:02,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:48:02,771 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:48:02,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:48:02 WrapperNode [2021-11-02 22:48:02,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:48:02,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:48:02,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:48:02,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:48:02,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:48:02" (1/1) ... [2021-11-02 22:48:02,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:48:02" (1/1) ... [2021-11-02 22:48:02,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:48:02,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:48:02,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:48:02,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:48:02,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:48:02" (1/1) ... [2021-11-02 22:48:02,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:48:02" (1/1) ... [2021-11-02 22:48:02,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:48:02" (1/1) ... [2021-11-02 22:48:02,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:48:02" (1/1) ... [2021-11-02 22:48:02,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:48:02" (1/1) ... [2021-11-02 22:48:02,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:48:02" (1/1) ... [2021-11-02 22:48:02,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:48:02" (1/1) ... [2021-11-02 22:48:02,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:48:02,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:48:02,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:48:02,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:48:02,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:48:02" (1/1) ... [2021-11-02 22:48:02,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:48:02,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:48:02,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:48:03,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:48:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:48:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:48:03,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:48:03,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:48:04,277 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:48:04,277 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-11-02 22:48:04,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:48:04 BoogieIcfgContainer [2021-11-02 22:48:04,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:48:04,284 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:48:04,284 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:48:04,289 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:48:04,290 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:48:04,291 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:48:02" (1/3) ... [2021-11-02 22:48:04,293 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39b3c9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:48:04, skipping insertion in model container [2021-11-02 22:48:04,293 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:48:04,293 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:48:02" (2/3) ... [2021-11-02 22:48:04,294 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39b3c9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:48:04, skipping insertion in model container [2021-11-02 22:48:04,294 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:48:04,294 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:48:04" (3/3) ... [2021-11-02 22:48:04,296 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product30.cil.c [2021-11-02 22:48:04,347 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:48:04,347 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:48:04,347 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:48:04,348 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:48:04,348 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:48:04,348 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:48:04,348 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:48:04,348 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:48:04,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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) [2021-11-02 22:48:04,402 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-11-02 22:48:04,403 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:48:04,403 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:48:04,410 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:48:04,411 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:48:04,411 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:48:04,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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) [2021-11-02 22:48:04,420 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-11-02 22:48:04,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:48:04,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:48:04,422 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:48:04,423 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:48:04,429 INFO L791 eck$LassoCheckResult]: Stem: 92#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 29#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 9#L542true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 102#L550true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 49#L140true assume 0 != main_~tmp~0; 85#L113true havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 94#L874-1true [2021-11-02 22:48:04,430 INFO L793 eck$LassoCheckResult]: Loop: 94#L874-1true assume !false; 76#L903true assume test_~splverifierCounter~0 < 4; 18#L904true test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 89#L912true assume !(0 != test_~tmp~9); 13#L912-1true test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 93#L922true assume !(0 != test_~tmp___0~2); 61#L922-1true test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 66#L932true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 30#L940-2true assume !(0 != ~pumpRunning~0); 42#L670true assume !(0 != ~systemActive~0); 11#L677true havoc __utac_acc__Specification1_spec__1_#t~ret75, __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_~tmp~8, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~8;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 73#L603-1true __utac_acc__Specification1_spec__1_#t~ret75 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~8 := __utac_acc__Specification1_spec__1_#t~ret75;havoc __utac_acc__Specification1_spec__1_#t~ret75; 62#L874true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8); 94#L874-1true [2021-11-02 22:48:04,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:48:04,438 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-02 22:48:04,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:48:04,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235268408] [2021-11-02 22:48:04,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:48:04,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:48:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:48:04,811 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:48:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:48:05,044 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:48:05,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:48:05,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1679344189, now seen corresponding path program 1 times [2021-11-02 22:48:05,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:48:05,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547528613] [2021-11-02 22:48:05,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:48:05,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:48:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:48:05,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:48:05,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:48:05,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547528613] [2021-11-02 22:48:05,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547528613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:48:05,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:48:05,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:48:05,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434814491] [2021-11-02 22:48:05,179 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:48:05,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:48:05,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:48:05,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:48:05,208 INFO L87 Difference]: Start difference. First operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-11-02 22:48:05,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:48:05,287 INFO L93 Difference]: Finished difference Result 102 states and 143 transitions. [2021-11-02 22:48:05,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:48:05,290 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 143 transitions. [2021-11-02 22:48:05,295 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-11-02 22:48:05,302 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2021-11-02 22:48:05,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2021-11-02 22:48:05,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2021-11-02 22:48:05,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2021-11-02 22:48:05,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:48:05,307 INFO L681 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-11-02 22:48:05,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2021-11-02 22:48:05,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-02 22:48:05,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 94 states have internal predecessors, (135), 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) [2021-11-02 22:48:05,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2021-11-02 22:48:05,347 INFO L704 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-11-02 22:48:05,348 INFO L587 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-11-02 22:48:05,348 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:48:05,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2021-11-02 22:48:05,351 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-11-02 22:48:05,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:48:05,358 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:48:05,359 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:48:05,359 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:48:05,359 INFO L791 eck$LassoCheckResult]: Stem: 299#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 283#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 230#L542 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 231#L550 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 302#L140 assume 0 != main_~tmp~0; 291#L113 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 239#L874-1 [2021-11-02 22:48:05,360 INFO L793 eck$LassoCheckResult]: Loop: 239#L874-1 assume !false; 273#L903 assume test_~splverifierCounter~0 < 4; 260#L904 test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 261#L912 assume !(0 != test_~tmp~9); 248#L912-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 249#L922 assume !(0 != test_~tmp___0~2); 236#L922-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 237#L932 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 250#L940-2 assume !(0 != ~pumpRunning~0); 281#L670 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 295#L728 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret54, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 268#L702-1 assume !(0 != ~pumpRunning~0); 232#L677 havoc __utac_acc__Specification1_spec__1_#t~ret75, __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_~tmp~8, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~8;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 233#L603-1 __utac_acc__Specification1_spec__1_#t~ret75 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~8 := __utac_acc__Specification1_spec__1_#t~ret75;havoc __utac_acc__Specification1_spec__1_#t~ret75; 238#L874 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8); 239#L874-1 [2021-11-02 22:48:05,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:48:05,361 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-02 22:48:05,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:48:05,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195031789] [2021-11-02 22:48:05,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:48:05,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:48:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:48:05,449 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:48:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:48:05,556 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:48:05,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:48:05,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1091435467, now seen corresponding path program 1 times [2021-11-02 22:48:05,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:48:05,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364499060] [2021-11-02 22:48:05,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:48:05,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:48:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:48:05,566 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:48:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:48:05,582 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:48:05,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:48:05,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1358149583, now seen corresponding path program 1 times [2021-11-02 22:48:05,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:48:05,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325659609] [2021-11-02 22:48:05,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:48:05,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:48:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:48:05,689 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:48:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:48:05,796 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:49:18,326 WARN L207 SmtUtils]: Spent 1.21 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-02 22:50:20,931 WARN L207 SmtUtils]: Spent 30.19 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-02 22:50:21,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 10:50:21 BoogieIcfgContainer [2021-11-02 22:50:21,133 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 22:50:21,133 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:50:21,134 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:50:21,134 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:50:21,134 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:48:04" (3/4) ... [2021-11-02 22:50:21,137 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-02 22:50:21,186 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 22:50:21,186 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:50:21,188 INFO L168 Benchmark]: Toolchain (without parser) took 139003.66 ms. Allocated memory was 98.6 MB in the beginning and 169.9 MB in the end (delta: 71.3 MB). Free memory was 64.4 MB in the beginning and 50.0 MB in the end (delta: 14.3 MB). Peak memory consumption was 87.6 MB. Max. memory is 16.1 GB. [2021-11-02 22:50:21,188 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 98.6 MB. Free memory is still 52.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:50:21,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.77 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 64.2 MB in the beginning and 91.7 MB in the end (delta: -27.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 22:50:21,190 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.42 ms. Allocated memory is still 125.8 MB. Free memory was 91.7 MB in the beginning and 88.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:50:21,191 INFO L168 Benchmark]: Boogie Preprocessor took 56.17 ms. Allocated memory is still 125.8 MB. Free memory was 88.4 MB in the beginning and 85.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:50:21,191 INFO L168 Benchmark]: RCFGBuilder took 1352.60 ms. Allocated memory is still 125.8 MB. Free memory was 85.9 MB in the beginning and 79.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. [2021-11-02 22:50:21,192 INFO L168 Benchmark]: BuchiAutomizer took 136848.80 ms. Allocated memory was 125.8 MB in the beginning and 169.9 MB in the end (delta: 44.0 MB). Free memory was 79.6 MB in the beginning and 52.1 MB in the end (delta: 27.5 MB). Peak memory consumption was 82.6 MB. Max. memory is 16.1 GB. [2021-11-02 22:50:21,193 INFO L168 Benchmark]: Witness Printer took 53.24 ms. Allocated memory is still 169.9 MB. Free memory was 52.1 MB in the beginning and 50.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:50:21,197 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 98.6 MB. Free memory is still 52.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 584.77 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 64.2 MB in the beginning and 91.7 MB in the end (delta: -27.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.42 ms. Allocated memory is still 125.8 MB. Free memory was 91.7 MB in the beginning and 88.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.17 ms. Allocated memory is still 125.8 MB. Free memory was 88.4 MB in the beginning and 85.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1352.60 ms. Allocated memory is still 125.8 MB. Free memory was 85.9 MB in the beginning and 79.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 136848.80 ms. Allocated memory was 125.8 MB in the beginning and 169.9 MB in the end (delta: 44.0 MB). Free memory was 79.6 MB in the beginning and 52.1 MB in the end (delta: 27.5 MB). Peak memory consumption was 82.6 MB. Max. memory is 16.1 GB. * Witness Printer took 53.24 ms. Allocated memory is still 169.9 MB. Free memory was 52.1 MB in the beginning and 50.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * 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 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 136.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 136.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 140 SDtfs, 140 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 902]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18431} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=18431, NULL=0, NULL=18454, NULL=0, NULL=0, NULL=18451, NULL=18435, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e0e047b=0, NULL=18443, NULL=0, NULL=0, NULL=0, tmp___1=0, tmp=0, NULL=18433, NULL=0, NULL=0, tmp___0=0, NULL=18449, NULL=18434, NULL=18439, cleanupTimeShifts=4, NULL=18442, NULL=18432, NULL=18448, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54b5705c=66, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@197c91f6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d789f4d=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=18458, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6aa05c1d=0, retValue_acc=0, NULL=0, NULL=18446, NULL=0, NULL=18438, \result=1, head=0, pumpRunning=0, tmp=1, NULL=18459, \result=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fa17fc1=0, NULL=0, NULL=18440, retValue_acc=1, NULL=18456, NULL=18436, NULL=0, tmp=0, NULL=0, NULL=18450, tmp___2=66, tmp___0=0, NULL=18444, NULL=18437, splverifierCounter=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58900f25=0, \result=0, NULL=18452, NULL=18453, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@665d28ba=0, NULL=18457, head=0, NULL=0, NULL=0, tmp=0, NULL=18441, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26bdc135=0, NULL=18447, NULL=18445, NULL=18455, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L560] int waterLevel = 1; [L561] int methaneLevelCritical = 0; [L662] int pumpRunning = 0; [L663] int systemActive = 1; [L131] int retValue_acc ; [L132] int tmp ; [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L893] int splverifierCounter ; [L894] int tmp ; [L895] int tmp___0 ; [L896] int tmp___1 ; [L897] int tmp___2 ; [L900] splverifierCounter = 0 Loop: [L902] COND TRUE 1 [L904] COND TRUE splverifierCounter < 4 [L910] tmp = __VERIFIER_nondet_int() [L912] COND FALSE !(\read(tmp)) [L920] tmp___0 = __VERIFIER_nondet_int() [L922] COND FALSE !(\read(tmp___0)) [L930] tmp___2 = __VERIFIER_nondet_int() [L932] COND TRUE \read(tmp___2) [L861] systemActive = 1 [L670] COND FALSE !(\read(pumpRunning)) [L677] COND TRUE \read(systemActive) [L725] int tmp ; [L728] COND FALSE !(\read(pumpRunning)) [L699] int tmp ; [L702] COND FALSE !(\read(pumpRunning)) [L867] int tmp ; [L868] int tmp___0 ; [L599] int retValue_acc ; [L602] retValue_acc = methaneLevelCritical [L603] return (retValue_acc); [L872] tmp = isMethaneLevelCritical() [L874] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-02 22:50:21,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33ee8ea4-9371-4652-a4de-150004ed09d2/bin/uautomizer-tBqnrhUYjU/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)