./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro --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 859282ae831edbc368c6c02a28d784b7a1a4e20c5d272fba61fe5454e7afcc18 --- 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-8393723 [2022-11-18 19:47:30,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:47:30,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:47:30,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:47:30,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:47:30,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:47:30,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:47:30,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:47:30,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:47:30,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:47:30,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:47:30,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:47:30,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:47:30,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:47:30,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:47:30,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:47:30,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:47:30,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:47:30,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:47:30,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:47:30,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:47:30,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:47:30,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:47:30,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:47:30,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:47:30,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:47:30,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:47:30,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:47:30,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:47:30,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:47:30,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:47:30,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:47:30,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:47:30,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:47:30,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:47:30,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:47:30,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:47:30,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:47:30,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:47:30,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:47:30,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:47:30,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 19:47:30,690 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:47:30,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:47:30,691 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:47:30,691 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:47:30,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:47:30,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:47:30,693 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:47:30,693 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 19:47:30,693 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 19:47:30,694 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 19:47:30,695 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 19:47:30,695 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 19:47:30,695 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 19:47:30,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:47:30,696 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:47:30,696 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:47:30,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:47:30,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:47:30,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:47:30,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 19:47:30,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 19:47:30,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 19:47:30,698 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:47:30,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:47:30,699 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 19:47:30,700 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:47:30,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 19:47:30,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:47:30,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:47:30,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:47:30,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:47:30,702 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 19:47:30,703 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_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 859282ae831edbc368c6c02a28d784b7a1a4e20c5d272fba61fe5454e7afcc18 [2022-11-18 19:47:30,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:47:31,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:47:31,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:47:31,017 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:47:31,019 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:47:31,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2022-11-18 19:47:31,094 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/data/6c613bb86/3bd6b7df526949ef8b39660f8931d665/FLAGd400aef22 [2022-11-18 19:47:31,748 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:47:31,749 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2022-11-18 19:47:31,759 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/data/6c613bb86/3bd6b7df526949ef8b39660f8931d665/FLAGd400aef22 [2022-11-18 19:47:32,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/data/6c613bb86/3bd6b7df526949ef8b39660f8931d665 [2022-11-18 19:47:32,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:47:32,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:47:32,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:47:32,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:47:32,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:47:32,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:47:32" (1/1) ... [2022-11-18 19:47:32,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c504b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:32, skipping insertion in model container [2022-11-18 19:47:32,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:47:32" (1/1) ... [2022-11-18 19:47:32,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:47:32,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:47:32,347 WARN L234 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_f6ffb02b-3adc-409e-9201-9073b780de6d/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c[7086,7099] [2022-11-18 19:47:32,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:47:32,408 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:47:32,434 WARN L234 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_f6ffb02b-3adc-409e-9201-9073b780de6d/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c[7086,7099] [2022-11-18 19:47:32,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:47:32,496 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:47:32,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:32 WrapperNode [2022-11-18 19:47:32,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:47:32,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:47:32,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:47:32,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:47:32,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:32" (1/1) ... [2022-11-18 19:47:32,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:32" (1/1) ... [2022-11-18 19:47:32,552 INFO L138 Inliner]: procedures = 54, calls = 100, calls flagged for inlining = 53, calls inlined = 82, statements flattened = 565 [2022-11-18 19:47:32,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:47:32,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:47:32,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:47:32,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:47:32,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:32" (1/1) ... [2022-11-18 19:47:32,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:32" (1/1) ... [2022-11-18 19:47:32,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:32" (1/1) ... [2022-11-18 19:47:32,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:32" (1/1) ... [2022-11-18 19:47:32,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:32" (1/1) ... [2022-11-18 19:47:32,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:32" (1/1) ... [2022-11-18 19:47:32,580 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:32" (1/1) ... [2022-11-18 19:47:32,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:32" (1/1) ... [2022-11-18 19:47:32,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:47:32,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:47:32,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:47:32,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:47:32,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:32" (1/1) ... [2022-11-18 19:47:32,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:47:32,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:32,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:47:32,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 19:47:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:47:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:47:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:47:32,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:47:32,794 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:47:32,796 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:47:33,287 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:47:33,295 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:47:33,296 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 19:47:33,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:47:33 BoogieIcfgContainer [2022-11-18 19:47:33,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:47:33,299 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 19:47:33,299 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 19:47:33,303 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 19:47:33,304 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:47:33,304 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 07:47:32" (1/3) ... [2022-11-18 19:47:33,305 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@634b1a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:47:33, skipping insertion in model container [2022-11-18 19:47:33,305 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:47:33,306 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:47:32" (2/3) ... [2022-11-18 19:47:33,306 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@634b1a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:47:33, skipping insertion in model container [2022-11-18 19:47:33,306 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:47:33,306 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:47:33" (3/3) ... [2022-11-18 19:47:33,320 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2022-11-18 19:47:33,389 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 19:47:33,390 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 19:47:33,390 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 19:47:33,390 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 19:47:33,391 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 19:47:33,391 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 19:47:33,391 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 19:47:33,391 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 19:47:33,399 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 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) [2022-11-18 19:47:33,451 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2022-11-18 19:47:33,451 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:47:33,451 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:47:33,459 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:33,459 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:33,459 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 19:47:33,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 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) [2022-11-18 19:47:33,475 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 108 [2022-11-18 19:47:33,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:47:33,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:47:33,480 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:33,480 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:33,493 INFO L748 eck$LassoCheckResult]: Stem: 151#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);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 74#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 156#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 25#L83true main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 103#L914true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 88#L891true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 133#L400-2true [2022-11-18 19:47:33,501 INFO L750 eck$LassoCheckResult]: Loop: 133#L400-2true assume !false; 10#L401true assume test_~splverifierCounter~0#1 < 4; 113#L402true test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 123#L410true assume !(0 != test_~tmp~3#1); 6#L410-2true test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 44#L420true assume !(0 != test_~tmp___0~1#1); 9#L420-2true test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 20#L430true assume 0 != test_~tmp___2~0#1; 70#L436-2true assume { :begin_inline_timeShift } true; 31#L203true assume !(0 != ~pumpRunning~0); 83#L203-2true assume !(0 != ~systemActive~0); 34#L210-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 41#L138-1true __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 110#L937true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 141#L943-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 79#L220true assume { :end_inline_timeShift } true; 133#L400-2true [2022-11-18 19:47:33,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:33,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-11-18 19:47:33,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:33,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996958204] [2022-11-18 19:47:33,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:33,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:33,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:47:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:33,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:47:33,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:33,729 INFO L85 PathProgramCache]: Analyzing trace with hash 169792534, now seen corresponding path program 1 times [2022-11-18 19:47:33,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:33,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145347172] [2022-11-18 19:47:33,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:33,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:33,748 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:47:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:33,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:47:33,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:33,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1525211610, now seen corresponding path program 1 times [2022-11-18 19:47:33,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:33,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372796127] [2022-11-18 19:47:33,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:33,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:34,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:34,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:34,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372796127] [2022-11-18 19:47:34,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372796127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:34,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:34,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:47:34,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675817309] [2022-11-18 19:47:34,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:34,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:34,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:47:34,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:47:34,256 INFO L87 Difference]: Start difference. First operand has 166 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 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 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-11-18 19:47:34,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:34,402 INFO L93 Difference]: Finished difference Result 389 states and 512 transitions. [2022-11-18 19:47:34,403 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 389 states and 512 transitions. [2022-11-18 19:47:34,409 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 251 [2022-11-18 19:47:34,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 389 states to 359 states and 482 transitions. [2022-11-18 19:47:34,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 359 [2022-11-18 19:47:34,418 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 359 [2022-11-18 19:47:34,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 359 states and 482 transitions. [2022-11-18 19:47:34,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:47:34,434 INFO L218 hiAutomatonCegarLoop]: Abstraction has 359 states and 482 transitions. [2022-11-18 19:47:34,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states and 482 transitions. [2022-11-18 19:47:34,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 211. [2022-11-18 19:47:34,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 211 states have (on average 1.3412322274881516) internal successors, (283), 210 states have internal predecessors, (283), 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) [2022-11-18 19:47:34,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 283 transitions. [2022-11-18 19:47:34,493 INFO L240 hiAutomatonCegarLoop]: Abstraction has 211 states and 283 transitions. [2022-11-18 19:47:34,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:47:34,507 INFO L428 stractBuchiCegarLoop]: Abstraction has 211 states and 283 transitions. [2022-11-18 19:47:34,507 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 19:47:34,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 283 transitions. [2022-11-18 19:47:34,512 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2022-11-18 19:47:34,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:47:34,512 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:47:34,517 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:34,517 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:34,517 INFO L748 eck$LassoCheckResult]: Stem: 725#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);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 650#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 651#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 685#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 612#L83 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 613#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 704#L891 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 694#L400-2 [2022-11-18 19:47:34,517 INFO L750 eck$LassoCheckResult]: Loop: 694#L400-2 assume !false; 585#L401 assume test_~splverifierCounter~0#1 < 4; 586#L402 test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 716#L410 assume !(0 != test_~tmp~3#1); 577#L410-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 578#L420 assume !(0 != test_~tmp___0~1#1); 583#L420-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 584#L430 assume 0 != test_~tmp___2~0#1; 605#L436-2 assume { :begin_inline_timeShift } true; 622#L203 assume !(0 != ~pumpRunning~0); 623#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 698#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 661#L235-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 662#L227-3 assume { :end_inline_processEnvironment__wrappee__base } true; 649#L235-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 633#L261-1 assume { :end_inline_processEnvironment } true; 630#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 631#L138-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 639#L937 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 674#L943-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 693#L220 assume { :end_inline_timeShift } true; 694#L400-2 [2022-11-18 19:47:34,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:34,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-11-18 19:47:34,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:34,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028779263] [2022-11-18 19:47:34,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:34,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:34,529 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:47:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:34,539 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:47:34,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:34,540 INFO L85 PathProgramCache]: Analyzing trace with hash -94498944, now seen corresponding path program 1 times [2022-11-18 19:47:34,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:34,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794957488] [2022-11-18 19:47:34,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:34,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:34,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:34,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:34,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794957488] [2022-11-18 19:47:34,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794957488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:34,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:34,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:47:34,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165757594] [2022-11-18 19:47:34,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:34,566 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:47:34,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:34,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:47:34,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:47:34,567 INFO L87 Difference]: Start difference. First operand 211 states and 283 transitions. cyclomatic complexity: 75 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-18 19:47:34,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:34,640 INFO L93 Difference]: Finished difference Result 267 states and 343 transitions. [2022-11-18 19:47:34,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 343 transitions. [2022-11-18 19:47:34,642 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 191 [2022-11-18 19:47:34,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 267 states and 343 transitions. [2022-11-18 19:47:34,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 267 [2022-11-18 19:47:34,645 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 267 [2022-11-18 19:47:34,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 343 transitions. [2022-11-18 19:47:34,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:47:34,646 INFO L218 hiAutomatonCegarLoop]: Abstraction has 267 states and 343 transitions. [2022-11-18 19:47:34,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 343 transitions. [2022-11-18 19:47:34,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-11-18 19:47:34,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 267 states have (on average 1.2846441947565543) internal successors, (343), 266 states have internal predecessors, (343), 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) [2022-11-18 19:47:34,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 343 transitions. [2022-11-18 19:47:34,657 INFO L240 hiAutomatonCegarLoop]: Abstraction has 267 states and 343 transitions. [2022-11-18 19:47:34,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:47:34,658 INFO L428 stractBuchiCegarLoop]: Abstraction has 267 states and 343 transitions. [2022-11-18 19:47:34,658 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 19:47:34,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 267 states and 343 transitions. [2022-11-18 19:47:34,660 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 191 [2022-11-18 19:47:34,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:47:34,660 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:47:34,661 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:34,661 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:34,661 INFO L748 eck$LassoCheckResult]: Stem: 1227#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);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1131#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1132#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1168#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1095#L83 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 1096#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1189#L891 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1177#L400-2 [2022-11-18 19:47:34,662 INFO L750 eck$LassoCheckResult]: Loop: 1177#L400-2 assume !false; 1069#L401 assume test_~splverifierCounter~0#1 < 4; 1070#L402 test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1310#L410 assume !(0 != test_~tmp~3#1); 1308#L410-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1306#L420 assume !(0 != test_~tmp___0~1#1); 1304#L420-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 1303#L430 assume 0 != test_~tmp___2~0#1; 1301#L436-2 assume { :begin_inline_timeShift } true; 1300#L203 assume !(0 != ~pumpRunning~0); 1182#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1183#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1143#L235-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 1144#L178-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 1208#L183-1 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 1059#L363-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1060#L363-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1146#L369-1 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 1147#L239-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1129#L227-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1130#L235-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1114#L261-1 assume { :end_inline_processEnvironment } true; 1111#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1112#L138-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 1120#L937 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 1295#L943-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1176#L220 assume { :end_inline_timeShift } true; 1177#L400-2 [2022-11-18 19:47:34,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:34,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-11-18 19:47:34,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:34,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981136581] [2022-11-18 19:47:34,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:34,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:34,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:47:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:34,689 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:47:34,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:34,701 INFO L85 PathProgramCache]: Analyzing trace with hash 969572470, now seen corresponding path program 1 times [2022-11-18 19:47:34,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:34,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342226487] [2022-11-18 19:47:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:34,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:34,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:34,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:34,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342226487] [2022-11-18 19:47:34,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342226487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:34,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:34,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:47:34,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790283423] [2022-11-18 19:47:34,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:34,797 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:47:34,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:34,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:47:34,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:47:34,799 INFO L87 Difference]: Start difference. First operand 267 states and 343 transitions. cyclomatic complexity: 79 Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2022-11-18 19:47:34,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:34,917 INFO L93 Difference]: Finished difference Result 763 states and 967 transitions. [2022-11-18 19:47:34,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 763 states and 967 transitions. [2022-11-18 19:47:34,929 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 557 [2022-11-18 19:47:34,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 763 states to 763 states and 967 transitions. [2022-11-18 19:47:34,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 763 [2022-11-18 19:47:34,937 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 763 [2022-11-18 19:47:34,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 763 states and 967 transitions. [2022-11-18 19:47:34,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:47:34,944 INFO L218 hiAutomatonCegarLoop]: Abstraction has 763 states and 967 transitions. [2022-11-18 19:47:34,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states and 967 transitions. [2022-11-18 19:47:34,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 279. [2022-11-18 19:47:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 278 states have internal predecessors, (355), 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) [2022-11-18 19:47:34,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 355 transitions. [2022-11-18 19:47:34,970 INFO L240 hiAutomatonCegarLoop]: Abstraction has 279 states and 355 transitions. [2022-11-18 19:47:34,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:47:34,972 INFO L428 stractBuchiCegarLoop]: Abstraction has 279 states and 355 transitions. [2022-11-18 19:47:34,972 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 19:47:34,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 355 transitions. [2022-11-18 19:47:34,974 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2022-11-18 19:47:34,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:47:34,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:47:34,976 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:34,977 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:34,977 INFO L748 eck$LassoCheckResult]: Stem: 2267#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);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 2176#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 2177#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2212#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2136#L83 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 2137#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 2233#L891 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2219#L400-2 [2022-11-18 19:47:34,977 INFO L750 eck$LassoCheckResult]: Loop: 2219#L400-2 assume !false; 2109#L401 assume test_~splverifierCounter~0#1 < 4; 2110#L402 test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 2252#L410 assume !(0 != test_~tmp~3#1); 2186#L410-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 2348#L420 assume !(0 != test_~tmp___0~1#1); 2346#L420-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 2128#L430 assume 0 != test_~tmp___2~0#1; 2130#L436-2 assume { :begin_inline_timeShift } true; 2146#L203 assume !(0 != ~pumpRunning~0); 2147#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 2227#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2189#L235-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 2190#L178-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 2261#L183-1 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 2099#L363-3 assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; 2100#L363-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 2194#L369-1 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 2195#L239-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2174#L227-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2175#L235-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2243#L261-1 assume { :end_inline_processEnvironment } true; 2244#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 2342#L138-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 2338#L937 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 2264#L943-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2218#L220 assume { :end_inline_timeShift } true; 2219#L400-2 [2022-11-18 19:47:34,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:34,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-11-18 19:47:34,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:34,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971316892] [2022-11-18 19:47:34,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:34,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:35,010 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:47:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:35,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:47:35,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:35,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1227737908, now seen corresponding path program 1 times [2022-11-18 19:47:35,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:35,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210657752] [2022-11-18 19:47:35,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:35,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:35,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:35,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:35,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210657752] [2022-11-18 19:47:35,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210657752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:35,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:35,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:47:35,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534489483] [2022-11-18 19:47:35,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:35,091 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 19:47:35,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:35,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:47:35,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:47:35,092 INFO L87 Difference]: Start difference. First operand 279 states and 355 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-11-18 19:47:35,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:35,249 INFO L93 Difference]: Finished difference Result 703 states and 892 transitions. [2022-11-18 19:47:35,249 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 703 states and 892 transitions. [2022-11-18 19:47:35,254 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 517 [2022-11-18 19:47:35,258 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 703 states to 703 states and 892 transitions. [2022-11-18 19:47:35,258 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 703 [2022-11-18 19:47:35,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 703 [2022-11-18 19:47:35,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 703 states and 892 transitions. [2022-11-18 19:47:35,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:47:35,261 INFO L218 hiAutomatonCegarLoop]: Abstraction has 703 states and 892 transitions. [2022-11-18 19:47:35,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states and 892 transitions. [2022-11-18 19:47:35,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 297. [2022-11-18 19:47:35,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 297 states have (on average 1.2558922558922558) internal successors, (373), 296 states have internal predecessors, (373), 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) [2022-11-18 19:47:35,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 373 transitions. [2022-11-18 19:47:35,277 INFO L240 hiAutomatonCegarLoop]: Abstraction has 297 states and 373 transitions. [2022-11-18 19:47:35,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:47:35,280 INFO L428 stractBuchiCegarLoop]: Abstraction has 297 states and 373 transitions. [2022-11-18 19:47:35,281 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 19:47:35,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 297 states and 373 transitions. [2022-11-18 19:47:35,283 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 211 [2022-11-18 19:47:35,283 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:47:35,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:47:35,285 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:35,286 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:35,286 INFO L748 eck$LassoCheckResult]: Stem: 3272#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);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 3172#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 3173#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3208#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 3131#L83 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 3132#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 3227#L891 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3228#L400-2 [2022-11-18 19:47:35,286 INFO L750 eck$LassoCheckResult]: Loop: 3228#L400-2 assume !false; 3368#L401 assume test_~splverifierCounter~0#1 < 4; 3367#L402 test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 3365#L410 assume !(0 != test_~tmp~3#1); 3363#L410-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 3361#L420 assume !(0 != test_~tmp___0~1#1); 3103#L420-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 3104#L430 assume 0 != test_~tmp___2~0#1; 3125#L436-2 assume { :begin_inline_timeShift } true; 3141#L203 assume !(0 != ~pumpRunning~0); 3142#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 3221#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 3184#L235-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 3185#L178-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 3263#L183-1 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 3298#L363-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3243#L363-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 3189#L369-1 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 3190#L239-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3170#L227-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3171#L235-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3152#L261-1 assume { :end_inline_processEnvironment } true; 3147#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 3148#L138-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 3372#L937 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 3370#L943-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3369#L220 assume { :end_inline_timeShift } true; 3228#L400-2 [2022-11-18 19:47:35,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:35,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-11-18 19:47:35,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:35,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998652022] [2022-11-18 19:47:35,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:35,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:35,302 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:47:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:35,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:47:35,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:35,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1980689720, now seen corresponding path program 1 times [2022-11-18 19:47:35,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:35,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510251555] [2022-11-18 19:47:35,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:35,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:35,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:47:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:35,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:47:35,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:35,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1938989836, now seen corresponding path program 1 times [2022-11-18 19:47:35,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:35,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102785890] [2022-11-18 19:47:35,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:35,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:35,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:47:35,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:35,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102785890] [2022-11-18 19:47:35,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102785890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:35,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:35,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:47:35,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639794248] [2022-11-18 19:47:35,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:35,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:35,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:47:35,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:47:35,744 INFO L87 Difference]: Start difference. First operand 297 states and 373 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-11-18 19:47:35,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:35,867 INFO L93 Difference]: Finished difference Result 1031 states and 1283 transitions. [2022-11-18 19:47:35,867 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1031 states and 1283 transitions. [2022-11-18 19:47:35,874 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 772 [2022-11-18 19:47:35,895 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1031 states to 1031 states and 1283 transitions. [2022-11-18 19:47:35,895 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1031 [2022-11-18 19:47:35,896 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1031 [2022-11-18 19:47:35,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1031 states and 1283 transitions. [2022-11-18 19:47:35,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:47:35,898 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1031 states and 1283 transitions. [2022-11-18 19:47:35,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states and 1283 transitions. [2022-11-18 19:47:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 587. [2022-11-18 19:47:35,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 587 states have (on average 1.2385008517887564) internal successors, (727), 586 states have internal predecessors, (727), 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) [2022-11-18 19:47:35,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 727 transitions. [2022-11-18 19:47:35,915 INFO L240 hiAutomatonCegarLoop]: Abstraction has 587 states and 727 transitions. [2022-11-18 19:47:35,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:47:35,916 INFO L428 stractBuchiCegarLoop]: Abstraction has 587 states and 727 transitions. [2022-11-18 19:47:35,916 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 19:47:35,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 587 states and 727 transitions. [2022-11-18 19:47:35,920 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 422 [2022-11-18 19:47:35,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:47:35,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:47:35,921 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:35,921 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:35,922 INFO L748 eck$LassoCheckResult]: Stem: 4638#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);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 4520#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 4521#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4559#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 4480#L83 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 4481#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 4581#L891 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4582#L400-2 [2022-11-18 19:47:35,922 INFO L750 eck$LassoCheckResult]: Loop: 4582#L400-2 assume !false; 4880#L401 assume test_~splverifierCounter~0#1 < 4; 4608#L402 test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 4609#L410 assume !(0 != test_~tmp~3#1); 4443#L410-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 4444#L420 assume !(0 != test_~tmp___0~1#1); 5003#L420-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 5002#L430 assume 0 != test_~tmp___2~0#1; 4513#L436-2 assume { :begin_inline_timeShift } true; 5001#L203 assume !(0 != ~pumpRunning~0); 4573#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 4574#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 4534#L235-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 4535#L178-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 4629#L183-1 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 5025#L363-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 4601#L363-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 4602#L369-1 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 5024#L239-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4518#L227-2 assume { :end_inline_processEnvironment__wrappee__base } true; 4519#L235-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4624#L261-1 assume { :end_inline_processEnvironment } true; 4901#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 4900#L138-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 4899#L937 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 4898#L170 __utac_acc__Specification3_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; 4896#L943 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 4894#L943-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 4893#L220 assume { :end_inline_timeShift } true; 4582#L400-2 [2022-11-18 19:47:35,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:35,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2022-11-18 19:47:35,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:35,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591035136] [2022-11-18 19:47:35,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:35,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:35,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:47:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:35,937 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:47:35,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:35,938 INFO L85 PathProgramCache]: Analyzing trace with hash 773562411, now seen corresponding path program 1 times [2022-11-18 19:47:35,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:35,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812899763] [2022-11-18 19:47:35,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:35,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:35,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:47:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:35,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:47:35,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:35,952 INFO L85 PathProgramCache]: Analyzing trace with hash 647827687, now seen corresponding path program 1 times [2022-11-18 19:47:35,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:35,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934560288] [2022-11-18 19:47:35,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:35,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:35,964 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:47:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:35,975 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:47:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:37,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:47:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:47:37,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 07:47:37 BoogieIcfgContainer [2022-11-18 19:47:37,247 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 19:47:37,248 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:47:37,248 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:47:37,248 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:47:37,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:47:33" (3/4) ... [2022-11-18 19:47:37,250 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-18 19:47:37,295 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:47:37,295 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:47:37,296 INFO L158 Benchmark]: Toolchain (without parser) took 5234.08ms. Allocated memory was 96.5MB in the beginning and 159.4MB in the end (delta: 62.9MB). Free memory was 64.0MB in the beginning and 84.9MB in the end (delta: -20.9MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2022-11-18 19:47:37,296 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory was 52.7MB in the beginning and 52.7MB in the end (delta: 50.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:47:37,296 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.46ms. Allocated memory is still 96.5MB. Free memory was 63.8MB in the beginning and 64.3MB in the end (delta: -526.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:47:37,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.66ms. Allocated memory is still 96.5MB. Free memory was 64.3MB in the beginning and 61.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:47:37,297 INFO L158 Benchmark]: Boogie Preprocessor took 33.20ms. Allocated memory is still 96.5MB. Free memory was 61.2MB in the beginning and 58.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:47:37,297 INFO L158 Benchmark]: RCFGBuilder took 711.42ms. Allocated memory was 96.5MB in the beginning and 132.1MB in the end (delta: 35.7MB). Free memory was 58.8MB in the beginning and 99.2MB in the end (delta: -40.4MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2022-11-18 19:47:37,298 INFO L158 Benchmark]: BuchiAutomizer took 3947.87ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 99.0MB in the beginning and 88.2MB in the end (delta: 10.8MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2022-11-18 19:47:37,298 INFO L158 Benchmark]: Witness Printer took 47.47ms. Allocated memory is still 159.4MB. Free memory was 88.2MB in the beginning and 84.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:47:37,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory was 52.7MB in the beginning and 52.7MB in the end (delta: 50.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.46ms. Allocated memory is still 96.5MB. Free memory was 63.8MB in the beginning and 64.3MB in the end (delta: -526.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.66ms. Allocated memory is still 96.5MB. Free memory was 64.3MB in the beginning and 61.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.20ms. Allocated memory is still 96.5MB. Free memory was 61.2MB in the beginning and 58.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 711.42ms. Allocated memory was 96.5MB in the beginning and 132.1MB in the end (delta: 35.7MB). Free memory was 58.8MB in the beginning and 99.2MB in the end (delta: -40.4MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3947.87ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 99.0MB in the beginning and 88.2MB in the end (delta: 10.8MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * Witness Printer took 47.47ms. Allocated memory is still 159.4MB. Free memory was 88.2MB in the beginning and 84.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. 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 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 587 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.2s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 1482 StatesRemovedByMinimization, 4 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, 2988 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2988 mSDsluCounter, 4484 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3075 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 298 IncrementalHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 1409 mSDtfsCounter, 298 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc2 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: 400]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L635] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L96] int methaneLevelCritical = 0; [L195] int pumpRunning = 0; [L95] int waterLevel = 1; [L196] int systemActive = 1; [L832] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L905] int retValue_acc ; [L906] int tmp ; [L910] FCALL select_helpers() [L911] FCALL select_features() [L912] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L912] RET, EXPR valid_product() [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) [L916] FCALL setup() [L917] CALL runTest() [L899] CALL test() [L391] int splverifierCounter ; [L392] int tmp ; [L393] int tmp___0 ; [L394] int tmp___1 ; [L395] int tmp___2 ; [L398] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L400] COND TRUE 1 [L402] COND TRUE splverifierCounter < 4 [L408] tmp = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp)) [L418] tmp___0 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___0)) [L428] tmp___2 = __VERIFIER_nondet_int() [L430] COND TRUE \read(tmp___2) [L445] CALL timeShift() [L203] COND FALSE !(\read(pumpRunning)) [L210] COND TRUE \read(systemActive) [L212] CALL processEnvironment() [L258] int tmp ; [L261] COND FALSE !(\read(pumpRunning)) [L276] CALL processEnvironment__wrappee__highWaterSensor() [L232] int tmp ; [L235] COND TRUE ! pumpRunning [L237] CALL, EXPR isHighWaterLevel() [L355] int retValue_acc ; [L356] int tmp ; [L357] int tmp___0 ; [L361] CALL, EXPR isHighWaterSensorDry() [L175] int retValue_acc ; [L178] COND TRUE waterLevel < 2 [L179] retValue_acc = 1 [L180] return (retValue_acc); [L361] RET, EXPR isHighWaterSensorDry() [L361] tmp = isHighWaterSensorDry() [L363] COND TRUE \read(tmp) [L364] tmp___0 = 0 [L368] retValue_acc = tmp___0 [L369] return (retValue_acc); [L237] RET, EXPR isHighWaterLevel() [L237] tmp = isHighWaterLevel() [L239] COND FALSE !(\read(tmp)) [L245] FCALL processEnvironment__wrappee__base() [L276] RET processEnvironment__wrappee__highWaterSensor() [L212] RET processEnvironment() [L218] CALL __utac_acc__Specification3_spec__1() [L929] int tmp ; [L930] int tmp___0 ; [L931] int tmp___1 ; [L935] CALL, EXPR isMethaneLevelCritical() [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); [L935] RET, EXPR isMethaneLevelCritical() [L935] tmp = isMethaneLevelCritical() [L937] COND FALSE !(\read(tmp)) [L941] CALL, EXPR getWaterLevel() [L166] int retValue_acc ; [L169] retValue_acc = waterLevel [L170] return (retValue_acc); [L941] RET, EXPR getWaterLevel() [L941] tmp___0 = getWaterLevel() [L943] COND FALSE !(tmp___0 == 2) [L218] RET __utac_acc__Specification3_spec__1() [L445] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 400]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L635] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L96] int methaneLevelCritical = 0; [L195] int pumpRunning = 0; [L95] int waterLevel = 1; [L196] int systemActive = 1; [L832] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L905] int retValue_acc ; [L906] int tmp ; [L910] FCALL select_helpers() [L911] FCALL select_features() [L912] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L912] RET, EXPR valid_product() [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) [L916] FCALL setup() [L917] CALL runTest() [L899] CALL test() [L391] int splverifierCounter ; [L392] int tmp ; [L393] int tmp___0 ; [L394] int tmp___1 ; [L395] int tmp___2 ; [L398] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L400] COND TRUE 1 [L402] COND TRUE splverifierCounter < 4 [L408] tmp = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp)) [L418] tmp___0 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___0)) [L428] tmp___2 = __VERIFIER_nondet_int() [L430] COND TRUE \read(tmp___2) [L445] CALL timeShift() [L203] COND FALSE !(\read(pumpRunning)) [L210] COND TRUE \read(systemActive) [L212] CALL processEnvironment() [L258] int tmp ; [L261] COND FALSE !(\read(pumpRunning)) [L276] CALL processEnvironment__wrappee__highWaterSensor() [L232] int tmp ; [L235] COND TRUE ! pumpRunning [L237] CALL, EXPR isHighWaterLevel() [L355] int retValue_acc ; [L356] int tmp ; [L357] int tmp___0 ; [L361] CALL, EXPR isHighWaterSensorDry() [L175] int retValue_acc ; [L178] COND TRUE waterLevel < 2 [L179] retValue_acc = 1 [L180] return (retValue_acc); [L361] RET, EXPR isHighWaterSensorDry() [L361] tmp = isHighWaterSensorDry() [L363] COND TRUE \read(tmp) [L364] tmp___0 = 0 [L368] retValue_acc = tmp___0 [L369] return (retValue_acc); [L237] RET, EXPR isHighWaterLevel() [L237] tmp = isHighWaterLevel() [L239] COND FALSE !(\read(tmp)) [L245] FCALL processEnvironment__wrappee__base() [L276] RET processEnvironment__wrappee__highWaterSensor() [L212] RET processEnvironment() [L218] CALL __utac_acc__Specification3_spec__1() [L929] int tmp ; [L930] int tmp___0 ; [L931] int tmp___1 ; [L935] CALL, EXPR isMethaneLevelCritical() [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); [L935] RET, EXPR isMethaneLevelCritical() [L935] tmp = isMethaneLevelCritical() [L937] COND FALSE !(\read(tmp)) [L941] CALL, EXPR getWaterLevel() [L166] int retValue_acc ; [L169] retValue_acc = waterLevel [L170] return (retValue_acc); [L941] RET, EXPR getWaterLevel() [L941] tmp___0 = getWaterLevel() [L943] COND FALSE !(tmp___0 == 2) [L218] RET __utac_acc__Specification3_spec__1() [L445] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-18 19:47:37,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ffb02b-3adc-409e-9201-9073b780de6d/bin/uautomizer-TMbwUNV5ro/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)