./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product04.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_6ec6499a-3272-4a47-a29c-d4f2e4910d61/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/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_6ec6499a-3272-4a47-a29c-d4f2e4910d61/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product04.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/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_6ec6499a-3272-4a47-a29c-d4f2e4910d61/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 67e8a37948bd5f43a3fb7848f413432f70349c69c24953f933a261c7c5558ab6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:31:37,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:31:37,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:31:37,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:31:37,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:31:37,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:31:37,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:31:37,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:31:37,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:31:37,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:31:37,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:31:37,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:31:37,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:31:37,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:31:37,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:31:37,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:31:37,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:31:37,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:31:37,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:31:37,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:31:37,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:31:37,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:31:37,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:31:37,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:31:37,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:31:37,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:31:37,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:31:37,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:31:37,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:31:37,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:31:37,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:31:37,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:31:37,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:31:37,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:31:37,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:31:37,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:31:37,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:31:37,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:31:37,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:31:37,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:31:37,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:31:37,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 22:31:37,702 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:31:37,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:31:37,703 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:31:37,703 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:31:37,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:31:37,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:31:37,705 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:31:37,705 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:31:37,706 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:31:37,706 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:31:37,706 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:31:37,706 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:31:37,707 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:31:37,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:31:37,707 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:31:37,707 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:31:37,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:31:37,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:31:37,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:31:37,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:31:37,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:31:37,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:31:37,709 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:31:37,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:31:37,709 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:31:37,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:31:37,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:31:37,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:31:37,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:31:37,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:31:37,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:31:37,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:31:37,712 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:31:37,712 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_6ec6499a-3272-4a47-a29c-d4f2e4910d61/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67e8a37948bd5f43a3fb7848f413432f70349c69c24953f933a261c7c5558ab6 [2021-11-02 22:31:38,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:31:38,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:31:38,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:31:38,066 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:31:38,067 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:31:38,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/product-lines/minepump_spec1_product04.cil.c [2021-11-02 22:31:38,160 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/bin/uautomizer-tBqnrhUYjU/data/532cc4bff/f9107ce962f844c3907c2ed872b1c148/FLAG6ed16ec32 [2021-11-02 22:31:38,702 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:31:38,703 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/sv-benchmarks/c/product-lines/minepump_spec1_product04.cil.c [2021-11-02 22:31:38,716 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/bin/uautomizer-tBqnrhUYjU/data/532cc4bff/f9107ce962f844c3907c2ed872b1c148/FLAG6ed16ec32 [2021-11-02 22:31:39,023 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/bin/uautomizer-tBqnrhUYjU/data/532cc4bff/f9107ce962f844c3907c2ed872b1c148 [2021-11-02 22:31:39,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:31:39,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:31:39,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:31:39,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:31:39,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:31:39,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:31:39" (1/1) ... [2021-11-02 22:31:39,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2504e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:31:39, skipping insertion in model container [2021-11-02 22:31:39,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:31:39" (1/1) ... [2021-11-02 22:31:39,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:31:39,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:31:39,291 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_6ec6499a-3272-4a47-a29c-d4f2e4910d61/sv-benchmarks/c/product-lines/minepump_spec1_product04.cil.c[1605,1618] [2021-11-02 22:31:39,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:31:39,451 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:31:39,466 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_6ec6499a-3272-4a47-a29c-d4f2e4910d61/sv-benchmarks/c/product-lines/minepump_spec1_product04.cil.c[1605,1618] [2021-11-02 22:31:39,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:31:39,586 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:31:39,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:31:39 WrapperNode [2021-11-02 22:31:39,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:31:39,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:31:39,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:31:39,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:31:39,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:31:39" (1/1) ... [2021-11-02 22:31:39,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:31:39" (1/1) ... [2021-11-02 22:31:39,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:31:39,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:31:39,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:31:39,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:31:39,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:31:39" (1/1) ... [2021-11-02 22:31:39,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:31:39" (1/1) ... [2021-11-02 22:31:39,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:31:39" (1/1) ... [2021-11-02 22:31:39,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:31:39" (1/1) ... [2021-11-02 22:31:39,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:31:39" (1/1) ... [2021-11-02 22:31:39,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:31:39" (1/1) ... [2021-11-02 22:31:39,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:31:39" (1/1) ... [2021-11-02 22:31:39,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:31:39,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:31:39,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:31:39,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:31:39,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:31:39" (1/1) ... [2021-11-02 22:31:39,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:31:39,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:31:39,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:31:39,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:31:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:31:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:31:39,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:31:39,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:31:40,733 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:31:40,734 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-02 22:31:40,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:31:40 BoogieIcfgContainer [2021-11-02 22:31:40,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:31:40,739 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:31:40,739 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:31:40,745 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:31:40,746 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:31:40,746 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:31:39" (1/3) ... [2021-11-02 22:31:40,748 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15ed46ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:31:40, skipping insertion in model container [2021-11-02 22:31:40,748 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:31:40,748 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:31:39" (2/3) ... [2021-11-02 22:31:40,748 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15ed46ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:31:40, skipping insertion in model container [2021-11-02 22:31:40,749 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:31:40,749 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:31:40" (3/3) ... [2021-11-02 22:31:40,750 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product04.cil.c [2021-11-02 22:31:40,817 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:31:40,818 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:31:40,818 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:31:40,818 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:31:40,818 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:31:40,819 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:31:40,819 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:31:40,819 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:31:40,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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 22:31:40,878 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-11-02 22:31:40,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:31:40,878 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:31:40,886 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:31:40,886 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:31:40,886 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:31:40,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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 22:31:40,899 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-11-02 22:31:40,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:31:40,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:31:40,901 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:31:40,901 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:31:40,913 INFO L791 eck$LassoCheckResult]: Stem: 49#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 38#L-1true havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~5;havoc main_~retValue_acc~9;havoc main_~tmp~5; 33#L744true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 6#L752true main_#t~ret76 := valid_product_#res;main_~tmp~5 := main_#t~ret76;havoc main_#t~ret76; 31#L865true assume 0 != main_~tmp~5; 44#L842true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 13#L765-1true [2021-11-02 22:31:40,914 INFO L793 eck$LassoCheckResult]: Loop: 13#L765-1true assume !false; 55#L76true assume test_~splverifierCounter~0 < 4; 10#L77true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 32#L85true assume !(0 != test_~tmp~0); 50#L85-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 22#L95true assume !(0 != test_~tmp___0~0); 29#L95-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 19#L105true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 18#L113-1true assume !(0 != ~pumpRunning~0); 24#L149true assume !(0 != ~systemActive~0); 52#L156true havoc __utac_acc__Specification1_spec__1_#t~ret74, __utac_acc__Specification1_spec__1_#t~ret75, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 7#L682true __utac_acc__Specification1_spec__1_#t~ret74 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret74;havoc __utac_acc__Specification1_spec__1_#t~ret74; 21#L765true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 13#L765-1true [2021-11-02 22:31:40,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:31:40,921 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-02 22:31:40,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:31:40,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926314608] [2021-11-02 22:31:40,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:31:40,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:31:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:31:41,241 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:31:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:31:41,430 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:31:41,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:31:41,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1672941108, now seen corresponding path program 1 times [2021-11-02 22:31:41,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:31:41,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221517251] [2021-11-02 22:31:41,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:31:41,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:31:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:31:41,515 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 22:31:41,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:31:41,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221517251] [2021-11-02 22:31:41,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221517251] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:31:41,517 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:31:41,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:31:41,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708721418] [2021-11-02 22:31:41,522 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:31:41,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:31:41,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:31:41,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:31:41,540 INFO L87 Difference]: Start difference. First operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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 22:31:41,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:31:41,590 INFO L93 Difference]: Finished difference Result 106 states and 144 transitions. [2021-11-02 22:31:41,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:31:41,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 144 transitions. [2021-11-02 22:31:41,596 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 66 [2021-11-02 22:31:41,602 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 92 states and 129 transitions. [2021-11-02 22:31:41,603 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2021-11-02 22:31:41,604 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2021-11-02 22:31:41,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 129 transitions. [2021-11-02 22:31:41,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:31:41,606 INFO L681 BuchiCegarLoop]: Abstraction has 92 states and 129 transitions. [2021-11-02 22:31:41,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 129 transitions. [2021-11-02 22:31:41,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2021-11-02 22:31:41,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 90 states have (on average 1.4) internal successors, (126), 89 states have internal predecessors, (126), 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 22:31:41,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 126 transitions. [2021-11-02 22:31:41,643 INFO L704 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-11-02 22:31:41,643 INFO L587 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-11-02 22:31:41,643 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:31:41,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 126 transitions. [2021-11-02 22:31:41,646 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 64 [2021-11-02 22:31:41,646 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:31:41,646 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:31:41,647 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:31:41,647 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:31:41,648 INFO L791 eck$LassoCheckResult]: Stem: 227#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 220#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~5;havoc main_~retValue_acc~9;havoc main_~tmp~5; 217#L744 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 174#L752 main_#t~ret76 := valid_product_#res;main_~tmp~5 := main_#t~ret76;havoc main_#t~ret76; 175#L865 assume 0 != main_~tmp~5; 212#L842 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 226#L765-1 [2021-11-02 22:31:41,648 INFO L793 eck$LassoCheckResult]: Loop: 226#L765-1 assume !false; 253#L76 assume test_~splverifierCounter~0 < 4; 254#L77 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 260#L85 assume !(0 != test_~tmp~0); 228#L85-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 200#L95 assume !(0 != test_~tmp___0~0); 201#L95-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 195#L105 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 192#L113-1 assume !(0 != ~pumpRunning~0); 194#L149 assume 0 != ~systemActive~0; 203#L156 havoc __utac_acc__Specification1_spec__1_#t~ret74, __utac_acc__Specification1_spec__1_#t~ret75, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 258#L682 __utac_acc__Specification1_spec__1_#t~ret74 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret74;havoc __utac_acc__Specification1_spec__1_#t~ret74; 256#L765 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 226#L765-1 [2021-11-02 22:31:41,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:31:41,649 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-02 22:31:41,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:31:41,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456527142] [2021-11-02 22:31:41,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:31:41,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:31:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:31:41,713 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:31:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:31:41,781 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:31:41,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:31:41,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1673030481, now seen corresponding path program 1 times [2021-11-02 22:31:41,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:31:41,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840331701] [2021-11-02 22:31:41,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:31:41,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:31:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:31:41,789 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:31:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:31:41,825 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:31:41,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:31:41,833 INFO L85 PathProgramCache]: Analyzing trace with hash 41248457, now seen corresponding path program 1 times [2021-11-02 22:31:41,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:31:41,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611952230] [2021-11-02 22:31:41,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:31:41,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:31:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:31:41,910 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:31:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:31:41,993 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:32:44,760 WARN L207 SmtUtils]: Spent 1.04 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-02 22:33:47,989 WARN L207 SmtUtils]: Spent 30.19 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-02 22:33:48,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 10:33:48 BoogieIcfgContainer [2021-11-02 22:33:48,155 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 22:33:48,156 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:33:48,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:33:48,156 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:33:48,157 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:31:40" (3/4) ... [2021-11-02 22:33:48,159 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-02 22:33:48,209 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 22:33:48,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:33:48,211 INFO L168 Benchmark]: Toolchain (without parser) took 129183.39 ms. Allocated memory was 119.5 MB in the beginning and 155.2 MB in the end (delta: 35.7 MB). Free memory was 80.7 MB in the beginning and 73.5 MB in the end (delta: 7.2 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. [2021-11-02 22:33:48,212 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 119.5 MB. Free memory was 98.2 MB in the beginning and 98.2 MB in the end (delta: 69.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:33:48,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 558.74 ms. Allocated memory is still 119.5 MB. Free memory was 80.5 MB in the beginning and 85.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 22:33:48,213 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.30 ms. Allocated memory is still 119.5 MB. Free memory was 85.8 MB in the beginning and 83.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:33:48,213 INFO L168 Benchmark]: Boogie Preprocessor took 32.19 ms. Allocated memory is still 119.5 MB. Free memory was 83.4 MB in the beginning and 81.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:33:48,214 INFO L168 Benchmark]: RCFGBuilder took 1020.07 ms. Allocated memory is still 119.5 MB. Free memory was 81.3 MB in the beginning and 92.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. [2021-11-02 22:33:48,215 INFO L168 Benchmark]: BuchiAutomizer took 127416.22 ms. Allocated memory was 119.5 MB in the beginning and 155.2 MB in the end (delta: 35.7 MB). Free memory was 91.8 MB in the beginning and 75.6 MB in the end (delta: 16.3 MB). Peak memory consumption was 97.3 MB. Max. memory is 16.1 GB. [2021-11-02 22:33:48,215 INFO L168 Benchmark]: Witness Printer took 53.94 ms. Allocated memory is still 155.2 MB. Free memory was 75.6 MB in the beginning and 73.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:33:48,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 119.5 MB. Free memory was 98.2 MB in the beginning and 98.2 MB in the end (delta: 69.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 558.74 ms. Allocated memory is still 119.5 MB. Free memory was 80.5 MB in the beginning and 85.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.30 ms. Allocated memory is still 119.5 MB. Free memory was 85.8 MB in the beginning and 83.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.19 ms. Allocated memory is still 119.5 MB. Free memory was 83.4 MB in the beginning and 81.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1020.07 ms. Allocated memory is still 119.5 MB. Free memory was 81.3 MB in the beginning and 92.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 127416.22 ms. Allocated memory was 119.5 MB in the beginning and 155.2 MB in the end (delta: 35.7 MB). Free memory was 91.8 MB in the beginning and 75.6 MB in the end (delta: 16.3 MB). Peak memory consumption was 97.3 MB. Max. memory is 16.1 GB. * Witness Printer took 53.94 ms. Allocated memory is still 155.2 MB. Free memory was 75.6 MB in the beginning and 73.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 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 90 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 127.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 127.1s. 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 90 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 74 SDtfs, 70 SDslu, 62 SDs, 0 SdLazy, 10 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: 75]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=21691} State at position 1 is {NULL=21719, NULL=0, NULL=0, NULL=0, NULL=21698, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2736fee0=68, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6af43908=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1912eb86=0, NULL=21691, NULL=21706, NULL=0, retValue_acc=0, NULL=21715, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31d185a9=0, NULL=21714, NULL=21710, methaneLevelCritical=0, NULL=0, NULL=0, NULL=21716, tmp___1=0, NULL=21717, NULL=0, NULL=0, tmp___0=0, cleanupTimeShifts=4, tmp=0, NULL=21695, NULL=21707, NULL=21697, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=21711, NULL=0, NULL=21713, retValue_acc=0, tmp___0=0, NULL=0, NULL=21709, NULL=0, NULL=0, NULL=0, NULL=0, NULL=21692, \result=1, head=0, pumpRunning=0, NULL=21704, NULL=21712, \result=0, NULL=21702, NULL=0, NULL=21708, NULL=0, NULL=0, tmp=0, NULL=0, tmp=1, NULL=0, NULL=21701, NULL=0, retValue_acc=1, NULL=21693, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c1b39f4=0, tmp___2=68, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=21696, NULL=21703, NULL=21700, head=0, NULL=21718, NULL=21705, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@536828ee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72dabdfb=0, NULL=0, NULL=21694, NULL=0, NULL=21699} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L141] int pumpRunning = 0; [L142] int systemActive = 1; [L441] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L639] int waterLevel = 1; [L640] int methaneLevelCritical = 0; [L783] int cleanupTimeShifts = 4; [L856] int retValue_acc ; [L857] int tmp ; [L748] int retValue_acc ; [L751] retValue_acc = 1 [L752] return (retValue_acc); [L863] tmp = valid_product() [L865] COND TRUE \read(tmp) [L66] int splverifierCounter ; [L67] int tmp ; [L68] int tmp___0 ; [L69] int tmp___1 ; [L70] int tmp___2 ; [L73] splverifierCounter = 0 Loop: [L75] COND TRUE 1 [L77] COND TRUE splverifierCounter < 4 [L83] tmp = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp)) [L93] tmp___0 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___0)) [L103] tmp___2 = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp___2) [L267] systemActive = 1 [L149] COND FALSE !(\read(pumpRunning)) [L156] COND TRUE \read(systemActive) [L758] int tmp ; [L759] int tmp___0 ; [L678] int retValue_acc ; [L681] retValue_acc = methaneLevelCritical [L682] return (retValue_acc); [L763] tmp = isMethaneLevelCritical() [L765] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-02 22:33:48,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ec6499a-3272-4a47-a29c-d4f2e4910d61/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)