./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product09.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product09.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 253216605bcefff455f75b86610d9086dd77a5c120ff63014eec6402e624337d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:00:33,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:00:33,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:00:33,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:00:33,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:00:33,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:00:33,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:00:33,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:00:33,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:00:33,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:00:33,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:00:33,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:00:33,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:00:33,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:00:33,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:00:33,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:00:33,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:00:33,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:00:33,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:00:33,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:00:33,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:00:33,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:00:33,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:00:33,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:00:33,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:00:33,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:00:33,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:00:33,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:00:33,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:00:33,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:00:33,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:00:33,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:00:33,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:00:33,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:00:33,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:00:33,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:00:33,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:00:33,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:00:33,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:00:33,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:00:33,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:00:33,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-02 21:00:33,600 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:00:33,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:00:33,607 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:00:33,607 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:00:33,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:00:33,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:00:33,609 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:00:33,610 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 21:00:33,610 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 21:00:33,610 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 21:00:33,611 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 21:00:33,612 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 21:00:33,612 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 21:00:33,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:00:33,612 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:00:33,613 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:00:33,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:00:33,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:00:33,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:00:33,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 21:00:33,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 21:00:33,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 21:00:33,614 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:00:33,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:00:33,614 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 21:00:33,615 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:00:33,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 21:00:33,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:00:33,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:00:33,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:00:33,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:00:33,618 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 21:00:33,618 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_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 253216605bcefff455f75b86610d9086dd77a5c120ff63014eec6402e624337d [2022-11-02 21:00:33,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:00:33,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:00:33,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:00:33,931 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:00:33,932 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:00:33,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/product-lines/minepump_spec2_product09.cil.c [2022-11-02 21:00:33,997 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/data/577fdb27e/ec3eecae514b4597bd83768bb2067661/FLAG29f38aba0 [2022-11-02 21:00:34,688 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:00:34,688 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/sv-benchmarks/c/product-lines/minepump_spec2_product09.cil.c [2022-11-02 21:00:34,702 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/data/577fdb27e/ec3eecae514b4597bd83768bb2067661/FLAG29f38aba0 [2022-11-02 21:00:34,944 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/data/577fdb27e/ec3eecae514b4597bd83768bb2067661 [2022-11-02 21:00:34,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:00:34,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:00:34,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:00:34,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:00:34,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:00:34,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:00:34" (1/1) ... [2022-11-02 21:00:34,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@568e7452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:34, skipping insertion in model container [2022-11-02 21:00:34,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:00:34" (1/1) ... [2022-11-02 21:00:34,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:00:35,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:00:35,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/sv-benchmarks/c/product-lines/minepump_spec2_product09.cil.c[1605,1618] [2022-11-02 21:00:35,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:00:35,424 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:00:35,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/sv-benchmarks/c/product-lines/minepump_spec2_product09.cil.c[1605,1618] [2022-11-02 21:00:35,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:00:35,502 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:00:35,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:35 WrapperNode [2022-11-02 21:00:35,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:00:35,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:00:35,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:00:35,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:00:35,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:35" (1/1) ... [2022-11-02 21:00:35,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:35" (1/1) ... [2022-11-02 21:00:35,566 INFO L138 Inliner]: procedures = 51, calls = 147, calls flagged for inlining = 44, calls inlined = 33, statements flattened = 294 [2022-11-02 21:00:35,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:00:35,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:00:35,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:00:35,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:00:35,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:35" (1/1) ... [2022-11-02 21:00:35,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:35" (1/1) ... [2022-11-02 21:00:35,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:35" (1/1) ... [2022-11-02 21:00:35,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:35" (1/1) ... [2022-11-02 21:00:35,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:35" (1/1) ... [2022-11-02 21:00:35,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:35" (1/1) ... [2022-11-02 21:00:35,614 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:35" (1/1) ... [2022-11-02 21:00:35,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:35" (1/1) ... [2022-11-02 21:00:35,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:00:35,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:00:35,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:00:35,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:00:35,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:35" (1/1) ... [2022-11-02 21:00:35,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:00:35,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:00:35,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:00:35,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 21:00:35,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:00:35,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:00:35,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:00:35,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:00:35,850 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:00:35,868 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:00:36,272 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:00:36,294 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:00:36,294 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 21:00:36,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:00:36 BoogieIcfgContainer [2022-11-02 21:00:36,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:00:36,297 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 21:00:36,297 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 21:00:36,302 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 21:00:36,306 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:00:36,307 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 09:00:34" (1/3) ... [2022-11-02 21:00:36,308 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@728b0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 09:00:36, skipping insertion in model container [2022-11-02 21:00:36,308 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:00:36,308 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:35" (2/3) ... [2022-11-02 21:00:36,308 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@728b0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 09:00:36, skipping insertion in model container [2022-11-02 21:00:36,309 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:00:36,309 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:00:36" (3/3) ... [2022-11-02 21:00:36,310 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product09.cil.c [2022-11-02 21:00:36,388 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 21:00:36,388 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 21:00:36,388 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 21:00:36,388 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 21:00:36,389 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 21:00:36,389 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 21:00:36,389 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 21:00:36,389 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 21:00:36,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 79 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:36,436 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 48 [2022-11-02 21:00:36,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:00:36,436 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:00:36,452 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:36,453 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:36,453 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 21:00:36,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 79 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:36,468 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 48 [2022-11-02 21:00:36,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:00:36,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:00:36,470 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:36,470 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:36,483 INFO L748 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 57#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~5#1, main_~tmp~6#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 67#L869true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 15#L862true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 28#L877true main_#t~ret43#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 8#L752true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 13#L725true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 71#L633true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 72#L439-2true [2022-11-02 21:00:36,484 INFO L750 eck$LassoCheckResult]: Loop: 72#L439-2true assume !false; 48#L440true assume test_~splverifierCounter~0#1 < 4; 30#L441true test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 3#L449true assume !(0 != test_~tmp~3#1); 23#L449-2true test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 12#L459true assume !(0 != test_~tmp___0~0#1); 31#L459-2true test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 18#L469true assume 0 != test_~tmp___2~0#1; 43#L475-2true assume { :begin_inline_timeShift } true; 62#L509true assume !(0 != ~pumpRunning~0); 19#L509-2true assume !(0 != ~systemActive~0); 58#L516-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret41#1, __utac_acc__Specification2_spec__2_#t~ret42#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 7#L810true __utac_acc__Specification2_spec__2_#t~ret41#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret41#1;havoc __utac_acc__Specification2_spec__2_#t~ret41#1; 56#L644true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 66#L644-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 40#L526true assume { :end_inline_timeShift } true; 72#L439-2true [2022-11-02 21:00:36,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:36,496 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-11-02 21:00:36,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:36,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735070304] [2022-11-02 21:00:36,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:36,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:00:36,693 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:00:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:00:36,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:00:36,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:36,818 INFO L85 PathProgramCache]: Analyzing trace with hash 980400586, now seen corresponding path program 1 times [2022-11-02 21:00:36,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:36,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18176605] [2022-11-02 21:00:36,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:36,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:00:36,836 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:00:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:00:36,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:00:36,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:36,846 INFO L85 PathProgramCache]: Analyzing trace with hash 818113203, now seen corresponding path program 1 times [2022-11-02 21:00:36,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:36,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023313065] [2022-11-02 21:00:36,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:36,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:37,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:37,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:37,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023313065] [2022-11-02 21:00:37,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023313065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:37,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:37,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:00:37,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640981980] [2022-11-02 21:00:37,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:37,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:37,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:00:37,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:00:37,372 INFO L87 Difference]: Start difference. First operand has 79 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 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 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:37,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:00:37,437 INFO L93 Difference]: Finished difference Result 76 states and 95 transitions. [2022-11-02 21:00:37,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 95 transitions. [2022-11-02 21:00:37,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2022-11-02 21:00:37,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 66 states and 85 transitions. [2022-11-02 21:00:37,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2022-11-02 21:00:37,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2022-11-02 21:00:37,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 85 transitions. [2022-11-02 21:00:37,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:37,450 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-11-02 21:00:37,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 85 transitions. [2022-11-02 21:00:37,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-11-02 21:00:37,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 65 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:37,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2022-11-02 21:00:37,501 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-11-02 21:00:37,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:00:37,510 INFO L428 stractBuchiCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-11-02 21:00:37,510 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 21:00:37,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 85 transitions. [2022-11-02 21:00:37,514 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2022-11-02 21:00:37,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:00:37,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:00:37,516 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:37,516 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:37,516 INFO L748 eck$LassoCheckResult]: Stem: 237#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 229#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~5#1, main_~tmp~6#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 230#L869 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 192#L862 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 193#L877 main_#t~ret43#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 181#L752 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 182#L725 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 191#L633 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 215#L439-2 [2022-11-02 21:00:37,516 INFO L750 eck$LassoCheckResult]: Loop: 215#L439-2 assume !false; 221#L440 assume test_~splverifierCounter~0#1 < 4; 210#L441 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 173#L449 assume !(0 != test_~tmp~3#1); 175#L449-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 188#L459 assume !(0 != test_~tmp___0~0#1); 190#L459-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 195#L469 assume 0 != test_~tmp___2~0#1; 184#L475-2 assume { :begin_inline_timeShift } true; 219#L509 assume !(0 != ~pumpRunning~0); 196#L509-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 197#L533 assume { :end_inline_processEnvironment } true; 231#L516-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret41#1, __utac_acc__Specification2_spec__2_#t~ret42#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 178#L810 __utac_acc__Specification2_spec__2_#t~ret41#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret41#1;havoc __utac_acc__Specification2_spec__2_#t~ret41#1; 179#L644 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 228#L644-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 214#L526 assume { :end_inline_timeShift } true; 215#L439-2 [2022-11-02 21:00:37,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:37,517 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-11-02 21:00:37,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:37,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139614057] [2022-11-02 21:00:37,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:37,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:00:37,546 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:00:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:00:37,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:00:37,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:37,599 INFO L85 PathProgramCache]: Analyzing trace with hash 955548009, now seen corresponding path program 1 times [2022-11-02 21:00:37,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:37,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306998285] [2022-11-02 21:00:37,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:37,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:00:37,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:00:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:00:37,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:00:37,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:37,623 INFO L85 PathProgramCache]: Analyzing trace with hash 219606432, now seen corresponding path program 1 times [2022-11-02 21:00:37,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:37,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2390333] [2022-11-02 21:00:37,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:37,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:00:37,648 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:00:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:00:37,680 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:00:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:00:41,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:00:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:00:41,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 09:00:41 BoogieIcfgContainer [2022-11-02 21:00:41,815 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 21:00:41,816 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:00:41,816 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:00:41,816 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:00:41,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:00:36" (3/4) ... [2022-11-02 21:00:41,819 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-02 21:00:41,871 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 21:00:41,871 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:00:41,872 INFO L158 Benchmark]: Toolchain (without parser) took 6923.25ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 69.2MB in the beginning and 68.2MB in the end (delta: 998.8kB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2022-11-02 21:00:41,872 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:00:41,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.83ms. Allocated memory is still 109.1MB. Free memory was 69.0MB in the beginning and 77.7MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 21:00:41,874 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.05ms. Allocated memory is still 109.1MB. Free memory was 77.7MB in the beginning and 75.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:00:41,874 INFO L158 Benchmark]: Boogie Preprocessor took 51.15ms. Allocated memory is still 109.1MB. Free memory was 75.2MB in the beginning and 73.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:00:41,875 INFO L158 Benchmark]: RCFGBuilder took 677.61ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 55.9MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-02 21:00:41,876 INFO L158 Benchmark]: BuchiAutomizer took 5517.86ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 55.9MB in the beginning and 71.3MB in the end (delta: -15.4MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2022-11-02 21:00:41,876 INFO L158 Benchmark]: Witness Printer took 55.31ms. Allocated memory is still 159.4MB. Free memory was 71.3MB in the beginning and 68.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:00:41,880 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 547.83ms. Allocated memory is still 109.1MB. Free memory was 69.0MB in the beginning and 77.7MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.05ms. Allocated memory is still 109.1MB. Free memory was 77.7MB in the beginning and 75.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.15ms. Allocated memory is still 109.1MB. Free memory was 75.2MB in the beginning and 73.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 677.61ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 55.9MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 5517.86ms. Allocated memory was 109.1MB in the beginning and 159.4MB in the end (delta: 50.3MB). Free memory was 55.9MB in the beginning and 71.3MB in the end (delta: -15.4MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * Witness Printer took 55.31ms. Allocated memory is still 159.4MB. Free memory was 71.3MB in the beginning and 68.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 66 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 5.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 275 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 275 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 90 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 439]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L501] int pumpRunning = 0; [L502] int systemActive = 1; [L627] int methAndRunningLastTime ; [L666] int cleanupTimeShifts = 4; [L767] int waterLevel = 1; [L768] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L743] int retValue_acc ; [L744] int tmp ; [L748] FCALL select_helpers() [L749] FCALL select_features() [L750] CALL, EXPR valid_product() [L873] int retValue_acc ; [L876] retValue_acc = 1 [L877] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L750] RET, EXPR valid_product() [L750] tmp = valid_product() [L752] COND TRUE \read(tmp) [L754] FCALL setup() [L755] CALL runTest() [L733] CALL __utac_acc__Specification2_spec__1() [L632] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L733] RET __utac_acc__Specification2_spec__1() [L734] CALL test() [L430] int splverifierCounter ; [L431] int tmp ; [L432] int tmp___0 ; [L433] int tmp___1 ; [L434] int tmp___2 ; [L437] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L439] COND TRUE 1 [L441] COND TRUE splverifierCounter < 4 [L447] tmp = __VERIFIER_nondet_int() [L449] COND FALSE !(\read(tmp)) [L457] tmp___0 = __VERIFIER_nondet_int() [L459] COND FALSE !(\read(tmp___0)) [L467] tmp___2 = __VERIFIER_nondet_int() [L469] COND TRUE \read(tmp___2) [L482] CALL timeShift() [L509] COND FALSE !(\read(pumpRunning)) [L516] COND TRUE \read(systemActive) [L518] FCALL processEnvironment() [L524] CALL __utac_acc__Specification2_spec__2() [L637] int tmp ; [L638] int tmp___0 ; [L642] CALL, EXPR isMethaneLevelCritical() [L806] int retValue_acc ; [L809] retValue_acc = methaneLevelCritical [L810] return (retValue_acc); [L642] RET, EXPR isMethaneLevelCritical() [L642] tmp = isMethaneLevelCritical() [L644] COND FALSE !(\read(tmp)) [L660] methAndRunningLastTime = 0 [L524] RET __utac_acc__Specification2_spec__2() [L482] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 439]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L501] int pumpRunning = 0; [L502] int systemActive = 1; [L627] int methAndRunningLastTime ; [L666] int cleanupTimeShifts = 4; [L767] int waterLevel = 1; [L768] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L743] int retValue_acc ; [L744] int tmp ; [L748] FCALL select_helpers() [L749] FCALL select_features() [L750] CALL, EXPR valid_product() [L873] int retValue_acc ; [L876] retValue_acc = 1 [L877] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L750] RET, EXPR valid_product() [L750] tmp = valid_product() [L752] COND TRUE \read(tmp) [L754] FCALL setup() [L755] CALL runTest() [L733] CALL __utac_acc__Specification2_spec__1() [L632] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L733] RET __utac_acc__Specification2_spec__1() [L734] CALL test() [L430] int splverifierCounter ; [L431] int tmp ; [L432] int tmp___0 ; [L433] int tmp___1 ; [L434] int tmp___2 ; [L437] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L439] COND TRUE 1 [L441] COND TRUE splverifierCounter < 4 [L447] tmp = __VERIFIER_nondet_int() [L449] COND FALSE !(\read(tmp)) [L457] tmp___0 = __VERIFIER_nondet_int() [L459] COND FALSE !(\read(tmp___0)) [L467] tmp___2 = __VERIFIER_nondet_int() [L469] COND TRUE \read(tmp___2) [L482] CALL timeShift() [L509] COND FALSE !(\read(pumpRunning)) [L516] COND TRUE \read(systemActive) [L518] FCALL processEnvironment() [L524] CALL __utac_acc__Specification2_spec__2() [L637] int tmp ; [L638] int tmp___0 ; [L642] CALL, EXPR isMethaneLevelCritical() [L806] int retValue_acc ; [L809] retValue_acc = methaneLevelCritical [L810] return (retValue_acc); [L642] RET, EXPR isMethaneLevelCritical() [L642] tmp = isMethaneLevelCritical() [L644] COND FALSE !(\read(tmp)) [L660] methAndRunningLastTime = 0 [L524] RET __utac_acc__Specification2_spec__2() [L482] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-02 21:00:41,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653eae20-8b56-4e99-a24c-3634acca520e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)