./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R --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 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a --- 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-38b53e6 [2022-11-25 17:07:19,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:07:19,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:07:19,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:07:19,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:07:19,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:07:19,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:07:19,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:07:19,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:07:19,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:07:19,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:07:19,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:07:19,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:07:19,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:07:19,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:07:19,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:07:19,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:07:19,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:07:19,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:07:19,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:07:19,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:07:19,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:07:19,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:07:19,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:07:19,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:07:19,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:07:19,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:07:19,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:07:19,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:07:19,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:07:19,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:07:19,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:07:19,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:07:19,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:07:19,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:07:19,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:07:19,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:07:19,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:07:19,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:07:19,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:07:19,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:07:19,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-25 17:07:19,717 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:07:19,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:07:19,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:07:19,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:07:19,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:07:19,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:07:19,720 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:07:19,720 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 17:07:19,721 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 17:07:19,721 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 17:07:19,721 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 17:07:19,721 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 17:07:19,721 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 17:07:19,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:07:19,722 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:07:19,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:07:19,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:07:19,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:07:19,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:07:19,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 17:07:19,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 17:07:19,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 17:07:19,724 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:07:19,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:07:19,724 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 17:07:19,724 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:07:19,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 17:07:19,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:07:19,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:07:19,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:07:19,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:07:19,733 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 17:07:19,733 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_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a [2022-11-25 17:07:19,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:07:19,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:07:19,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:07:19,994 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:07:19,995 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:07:19,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2022-11-25 17:07:23,134 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:07:23,385 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:07:23,386 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2022-11-25 17:07:23,406 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/data/8435edce5/b05c1b724cc84df4a3e45d330bb12de3/FLAG21240dce6 [2022-11-25 17:07:23,423 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/data/8435edce5/b05c1b724cc84df4a3e45d330bb12de3 [2022-11-25 17:07:23,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:07:23,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:07:23,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:07:23,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:07:23,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:07:23,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:07:23" (1/1) ... [2022-11-25 17:07:23,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c80f35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:23, skipping insertion in model container [2022-11-25 17:07:23,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:07:23" (1/1) ... [2022-11-25 17:07:23,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:07:23,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:07:23,823 WARN L237 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_fb54d187-644b-4a83-87ce-0810915f7f5e/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18691,18704] [2022-11-25 17:07:23,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:07:23,837 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:07:23,906 WARN L237 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_fb54d187-644b-4a83-87ce-0810915f7f5e/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18691,18704] [2022-11-25 17:07:23,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:07:23,924 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:07:23,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:23 WrapperNode [2022-11-25 17:07:23,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:07:23,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:07:23,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:07:23,926 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:07:23,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:23" (1/1) ... [2022-11-25 17:07:23,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:23" (1/1) ... [2022-11-25 17:07:23,987 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 53, calls inlined = 95, statements flattened = 669 [2022-11-25 17:07:23,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:07:23,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:07:23,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:07:23,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:07:23,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:23" (1/1) ... [2022-11-25 17:07:23,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:23" (1/1) ... [2022-11-25 17:07:24,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:23" (1/1) ... [2022-11-25 17:07:24,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:23" (1/1) ... [2022-11-25 17:07:24,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:23" (1/1) ... [2022-11-25 17:07:24,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:23" (1/1) ... [2022-11-25 17:07:24,020 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:23" (1/1) ... [2022-11-25 17:07:24,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:23" (1/1) ... [2022-11-25 17:07:24,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:07:24,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:07:24,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:07:24,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:07:24,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:23" (1/1) ... [2022-11-25 17:07:24,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:07:24,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:07:24,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:07:24,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 17:07:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:07:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:07:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:07:24,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:07:24,222 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:07:24,224 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:07:24,785 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:07:24,794 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:07:24,794 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:07:24,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:07:24 BoogieIcfgContainer [2022-11-25 17:07:24,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:07:24,798 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 17:07:24,798 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 17:07:24,802 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 17:07:24,803 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:07:24,803 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 05:07:23" (1/3) ... [2022-11-25 17:07:24,804 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@730910e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 05:07:24, skipping insertion in model container [2022-11-25 17:07:24,804 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:07:24,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:23" (2/3) ... [2022-11-25 17:07:24,805 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@730910e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 05:07:24, skipping insertion in model container [2022-11-25 17:07:24,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:07:24,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:07:24" (3/3) ... [2022-11-25 17:07:24,807 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2022-11-25 17:07:24,878 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 17:07:24,878 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 17:07:24,878 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 17:07:24,878 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 17:07:24,878 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 17:07:24,879 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 17:07:24,879 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 17:07:24,879 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 17:07:24,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 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) [2022-11-25 17:07:24,921 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-11-25 17:07:24,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:07:24,925 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:07:24,932 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:24,932 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:24,932 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 17:07:24,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 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) [2022-11-25 17:07:24,941 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-11-25 17:07:24,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:07:24,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:07:24,942 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:24,942 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:24,948 INFO L748 eck$LassoCheckResult]: Stem: 164#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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 55#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~10#1, main_~tmp~7#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 159#L500true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 17#L493true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 42#L508true main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 183#L595true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 142#L572true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 185#L64-2true [2022-11-25 17:07:24,949 INFO L750 eck$LassoCheckResult]: Loop: 185#L64-2true assume !false; 186#L65true assume test_~splverifierCounter~0#1 < 4; 48#L66true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 100#L74true assume !(0 != test_~tmp~0#1); 145#L74-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 160#L84true assume !(0 != test_~tmp___0~0#1); 34#L84-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 161#L94true assume 0 != test_~tmp___2~0#1; 134#L100-2true assume { :begin_inline_timeShift } true; 21#L136true assume !(0 != ~pumpRunning~0); 43#L136-2true assume !(0 != ~systemActive~0); 118#L143-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 35#L447true __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 78#L354true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 57#L354-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 10#L153true assume { :end_inline_timeShift } true; 185#L64-2true [2022-11-25 17:07:24,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:24,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-11-25 17:07:24,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:24,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3128180] [2022-11-25 17:07:24,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:24,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:25,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:07:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:25,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:07:25,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:25,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1892791780, now seen corresponding path program 1 times [2022-11-25 17:07:25,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:25,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769458036] [2022-11-25 17:07:25,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:25,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:25,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:07:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:25,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:07:25,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:25,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1046756440, now seen corresponding path program 1 times [2022-11-25 17:07:25,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:25,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391321512] [2022-11-25 17:07:25,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:25,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:25,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:07:25,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:07:25,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391321512] [2022-11-25 17:07:25,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391321512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:07:25,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:07:25,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:07:25,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015962043] [2022-11-25 17:07:25,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:07:25,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:07:25,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:07:25,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:07:25,741 INFO L87 Difference]: Start difference. First operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 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) [2022-11-25 17:07:25,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:07:25,820 INFO L93 Difference]: Finished difference Result 183 states and 238 transitions. [2022-11-25 17:07:25,821 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 238 transitions. [2022-11-25 17:07:25,825 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2022-11-25 17:07:25,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 173 states and 228 transitions. [2022-11-25 17:07:25,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 173 [2022-11-25 17:07:25,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173 [2022-11-25 17:07:25,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 228 transitions. [2022-11-25 17:07:25,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:07:25,848 INFO L218 hiAutomatonCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-11-25 17:07:25,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 228 transitions. [2022-11-25 17:07:25,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-11-25 17:07:25,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 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) [2022-11-25 17:07:25,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 228 transitions. [2022-11-25 17:07:25,902 INFO L240 hiAutomatonCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-11-25 17:07:25,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:07:25,908 INFO L428 stractBuchiCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-11-25 17:07:25,908 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-25 17:07:25,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 228 transitions. [2022-11-25 17:07:25,918 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2022-11-25 17:07:25,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:07:25,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:07:25,921 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:25,924 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] [2022-11-25 17:07:25,925 INFO L748 eck$LassoCheckResult]: Stem: 558#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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 482#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~10#1, main_~tmp~7#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 483#L500 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 417#L493 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 418#L508 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 462#L595 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 551#L572 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 402#L64-2 [2022-11-25 17:07:25,925 INFO L750 eck$LassoCheckResult]: Loop: 402#L64-2 assume !false; 559#L65 assume test_~splverifierCounter~0#1 < 4; 472#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 473#L74 assume !(0 != test_~tmp~0#1); 521#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 553#L84 assume !(0 != test_~tmp___0~0#1); 450#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 451#L94 assume 0 != test_~tmp___2~0#1; 497#L100-2 assume { :begin_inline_timeShift } true; 423#L136 assume !(0 != ~pumpRunning~0); 424#L136-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 463#L194 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 403#L168-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 405#L160-3 assume { :end_inline_processEnvironment__wrappee__base } true; 460#L168-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 399#L194-1 assume { :end_inline_processEnvironment } true; 400#L143-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 452#L447 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 453#L354 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 412#L354-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 401#L153 assume { :end_inline_timeShift } true; 402#L64-2 [2022-11-25 17:07:25,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:25,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-11-25 17:07:25,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:25,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521208411] [2022-11-25 17:07:25,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:25,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:25,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:07:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:25,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:07:25,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:25,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1698451121, now seen corresponding path program 1 times [2022-11-25 17:07:25,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:25,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138316662] [2022-11-25 17:07:25,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:25,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:25,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:07:25,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:07:25,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138316662] [2022-11-25 17:07:25,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138316662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:07:25,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:07:25,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:07:25,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406095380] [2022-11-25 17:07:25,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:07:25,983 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-25 17:07:25,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:07:25,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:07:25,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:07:25,984 INFO L87 Difference]: Start difference. First operand 173 states and 228 transitions. cyclomatic complexity: 57 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) [2022-11-25 17:07:26,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:07:26,064 INFO L93 Difference]: Finished difference Result 234 states and 296 transitions. [2022-11-25 17:07:26,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 234 states and 296 transitions. [2022-11-25 17:07:26,066 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 162 [2022-11-25 17:07:26,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 234 states to 234 states and 296 transitions. [2022-11-25 17:07:26,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 234 [2022-11-25 17:07:26,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 234 [2022-11-25 17:07:26,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 234 states and 296 transitions. [2022-11-25 17:07:26,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:07:26,071 INFO L218 hiAutomatonCegarLoop]: Abstraction has 234 states and 296 transitions. [2022-11-25 17:07:26,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states and 296 transitions. [2022-11-25 17:07:26,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-11-25 17:07:26,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 234 states have (on average 1.264957264957265) internal successors, (296), 233 states have internal predecessors, (296), 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) [2022-11-25 17:07:26,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 296 transitions. [2022-11-25 17:07:26,081 INFO L240 hiAutomatonCegarLoop]: Abstraction has 234 states and 296 transitions. [2022-11-25 17:07:26,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:07:26,082 INFO L428 stractBuchiCegarLoop]: Abstraction has 234 states and 296 transitions. [2022-11-25 17:07:26,082 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-25 17:07:26,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 296 transitions. [2022-11-25 17:07:26,084 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 162 [2022-11-25 17:07:26,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:07:26,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:07:26,085 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:26,086 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] [2022-11-25 17:07:26,086 INFO L748 eck$LassoCheckResult]: Stem: 980#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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 895#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~10#1, main_~tmp~7#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 896#L500 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 827#L493 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 828#L508 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 873#L595 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 970#L572 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 815#L64-2 [2022-11-25 17:07:26,086 INFO L750 eck$LassoCheckResult]: Loop: 815#L64-2 assume !false; 982#L65 assume test_~splverifierCounter~0#1 < 4; 883#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 884#L74 assume !(0 != test_~tmp~0#1); 936#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 973#L84 assume !(0 != test_~tmp___0~0#1); 860#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 861#L94 assume 0 != test_~tmp___2~0#1; 913#L100-2 assume { :begin_inline_timeShift } true; 835#L136 assume !(0 != ~pumpRunning~0); 836#L136-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 874#L194 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 816#L168-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 817#L455-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 846#L460-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 869#L314-3 assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1; 818#L314-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 819#L320-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 859#L172-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 943#L160-2 assume { :end_inline_processEnvironment__wrappee__base } true; 870#L168-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 812#L194-1 assume { :end_inline_processEnvironment } true; 813#L143-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 862#L447 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 863#L354 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 824#L354-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 814#L153 assume { :end_inline_timeShift } true; 815#L64-2 [2022-11-25 17:07:26,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:26,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-11-25 17:07:26,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:26,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298185578] [2022-11-25 17:07:26,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:26,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:26,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:07:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:26,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:07:26,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:26,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1557202683, now seen corresponding path program 1 times [2022-11-25 17:07:26,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:26,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511149292] [2022-11-25 17:07:26,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:26,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:07:26,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:07:26,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:07:26,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511149292] [2022-11-25 17:07:26,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511149292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:07:26,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:07:26,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:07:26,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975369551] [2022-11-25 17:07:26,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:07:26,185 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-25 17:07:26,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:07:26,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:07:26,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:07:26,187 INFO L87 Difference]: Start difference. First operand 234 states and 296 transitions. cyclomatic complexity: 64 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) [2022-11-25 17:07:26,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:07:26,376 INFO L93 Difference]: Finished difference Result 705 states and 881 transitions. [2022-11-25 17:07:26,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 705 states and 881 transitions. [2022-11-25 17:07:26,384 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 508 [2022-11-25 17:07:26,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 705 states to 705 states and 881 transitions. [2022-11-25 17:07:26,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 705 [2022-11-25 17:07:26,394 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 705 [2022-11-25 17:07:26,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 705 states and 881 transitions. [2022-11-25 17:07:26,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:07:26,401 INFO L218 hiAutomatonCegarLoop]: Abstraction has 705 states and 881 transitions. [2022-11-25 17:07:26,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states and 881 transitions. [2022-11-25 17:07:26,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 252. [2022-11-25 17:07:26,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 252 states have (on average 1.246031746031746) internal successors, (314), 251 states have internal predecessors, (314), 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) [2022-11-25 17:07:26,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 314 transitions. [2022-11-25 17:07:26,433 INFO L240 hiAutomatonCegarLoop]: Abstraction has 252 states and 314 transitions. [2022-11-25 17:07:26,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:07:26,436 INFO L428 stractBuchiCegarLoop]: Abstraction has 252 states and 314 transitions. [2022-11-25 17:07:26,436 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-25 17:07:26,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 252 states and 314 transitions. [2022-11-25 17:07:26,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2022-11-25 17:07:26,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:07:26,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:07:26,442 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:26,443 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] [2022-11-25 17:07:26,443 INFO L748 eck$LassoCheckResult]: Stem: 1944#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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1851#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~10#1, main_~tmp~7#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1852#L500 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1780#L493 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1781#L508 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 1827#L595 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1933#L572 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1768#L64-2 [2022-11-25 17:07:26,443 INFO L750 eck$LassoCheckResult]: Loop: 1768#L64-2 assume !false; 1949#L65 assume test_~splverifierCounter~0#1 < 4; 1837#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1838#L74 assume !(0 != test_~tmp~0#1); 1899#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1937#L84 assume !(0 != test_~tmp___0~0#1); 1813#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1814#L94 assume 0 != test_~tmp___2~0#1; 1873#L100-2 assume { :begin_inline_timeShift } true; 1788#L136 assume !(0 != ~pumpRunning~0); 1789#L136-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1828#L194 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1769#L168-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1770#L455-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1799#L460-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 1822#L314-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1823#L314-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1952#L320-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1951#L172-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1906#L160-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1824#L168-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1765#L194-1 assume { :end_inline_processEnvironment } true; 1766#L143-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 1815#L447 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 1816#L354 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 1777#L354-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1767#L153 assume { :end_inline_timeShift } true; 1768#L64-2 [2022-11-25 17:07:26,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:26,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-11-25 17:07:26,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:26,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562087369] [2022-11-25 17:07:26,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:26,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:26,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:07:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:26,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:07:26,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:26,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1815368121, now seen corresponding path program 1 times [2022-11-25 17:07:26,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:26,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484857212] [2022-11-25 17:07:26,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:26,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:26,505 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:07:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:26,520 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:07:26,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:26,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1440080381, now seen corresponding path program 1 times [2022-11-25 17:07:26,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:26,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690657321] [2022-11-25 17:07:26,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:26,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:26,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:07:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:26,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:07:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:27,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:07:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:27,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 05:07:27 BoogieIcfgContainer [2022-11-25 17:07:27,876 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 17:07:27,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:07:27,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:07:27,877 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:07:27,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:07:24" (3/4) ... [2022-11-25 17:07:27,880 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-25 17:07:27,936 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:07:27,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:07:27,937 INFO L158 Benchmark]: Toolchain (without parser) took 4507.09ms. Allocated memory was 144.7MB in the beginning and 197.1MB in the end (delta: 52.4MB). Free memory was 101.0MB in the beginning and 143.5MB in the end (delta: -42.4MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-11-25 17:07:27,937 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory was 113.4MB in the beginning and 113.2MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:07:27,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.77ms. Allocated memory is still 144.7MB. Free memory was 100.5MB in the beginning and 81.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 17:07:27,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.10ms. Allocated memory is still 144.7MB. Free memory was 81.6MB in the beginning and 78.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:07:27,939 INFO L158 Benchmark]: Boogie Preprocessor took 37.49ms. Allocated memory is still 144.7MB. Free memory was 78.4MB in the beginning and 75.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:07:27,939 INFO L158 Benchmark]: RCFGBuilder took 770.14ms. Allocated memory is still 144.7MB. Free memory was 75.9MB in the beginning and 50.1MB in the end (delta: 25.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 17:07:27,940 INFO L158 Benchmark]: BuchiAutomizer took 3078.43ms. Allocated memory was 144.7MB in the beginning and 197.1MB in the end (delta: 52.4MB). Free memory was 50.1MB in the beginning and 146.6MB in the end (delta: -96.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:07:27,940 INFO L158 Benchmark]: Witness Printer took 59.31ms. Allocated memory is still 197.1MB. Free memory was 146.6MB in the beginning and 143.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:07:27,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory was 113.4MB in the beginning and 113.2MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.77ms. Allocated memory is still 144.7MB. Free memory was 100.5MB in the beginning and 81.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.10ms. Allocated memory is still 144.7MB. Free memory was 81.6MB in the beginning and 78.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.49ms. Allocated memory is still 144.7MB. Free memory was 78.4MB in the beginning and 75.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 770.14ms. Allocated memory is still 144.7MB. Free memory was 75.9MB in the beginning and 50.1MB in the end (delta: 25.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3078.43ms. Allocated memory was 144.7MB in the beginning and 197.1MB in the end (delta: 52.4MB). Free memory was 50.1MB in the beginning and 146.6MB in the end (delta: -96.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 59.31ms. Allocated memory is still 197.1MB. Free memory was 146.6MB in the beginning and 143.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 252 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 453 StatesRemovedByMinimization, 1 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, 1822 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1822 mSDsluCounter, 1695 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 882 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 813 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 64]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L128] int pumpRunning = 0; [L129] int systemActive = 1; [L372] int waterLevel = 1; [L373] int methaneLevelCritical = 0; [L513] int cleanupTimeShifts = 4; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L586] int retValue_acc ; [L587] int tmp ; [L591] FCALL select_helpers() [L592] FCALL select_features() [L593] CALL, EXPR valid_product() [L504] int retValue_acc ; [L507] retValue_acc = 1 [L508] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L593] RET, EXPR valid_product() [L593] tmp = valid_product() [L595] COND TRUE \read(tmp) [L597] FCALL setup() [L598] CALL runTest() [L580] CALL test() [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L64] COND TRUE 1 [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L107] CALL timeShift() [L136] COND FALSE !(\read(pumpRunning)) [L143] COND TRUE \read(systemActive) [L145] CALL processEnvironment() [L191] int tmp ; [L194] COND FALSE !(\read(pumpRunning)) [L209] CALL processEnvironment__wrappee__highWaterSensor() [L165] int tmp ; [L168] COND TRUE ! pumpRunning [L170] CALL, EXPR isHighWaterLevel() [L306] int retValue_acc ; [L307] int tmp ; [L308] int tmp___0 ; [L312] CALL, EXPR isHighWaterSensorDry() [L452] int retValue_acc ; [L455] COND TRUE waterLevel < 2 [L456] retValue_acc = 1 [L457] return (retValue_acc); [L312] RET, EXPR isHighWaterSensorDry() [L312] tmp = isHighWaterSensorDry() [L314] COND TRUE \read(tmp) [L315] tmp___0 = 0 [L319] retValue_acc = tmp___0 [L320] return (retValue_acc); [L170] RET, EXPR isHighWaterLevel() [L170] tmp = isHighWaterLevel() [L172] COND FALSE !(\read(tmp)) [L178] FCALL processEnvironment__wrappee__base() [L209] RET processEnvironment__wrappee__highWaterSensor() [L145] RET processEnvironment() [L151] CALL __utac_acc__Specification4_spec__1() [L347] int tmp ; [L348] int tmp___0 ; [L352] CALL, EXPR getWaterLevel() [L443] int retValue_acc ; [L446] retValue_acc = waterLevel [L447] return (retValue_acc); [L352] RET, EXPR getWaterLevel() [L352] tmp = getWaterLevel() [L354] COND FALSE !(tmp == 0) [L151] RET __utac_acc__Specification4_spec__1() [L107] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 64]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L128] int pumpRunning = 0; [L129] int systemActive = 1; [L372] int waterLevel = 1; [L373] int methaneLevelCritical = 0; [L513] int cleanupTimeShifts = 4; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L586] int retValue_acc ; [L587] int tmp ; [L591] FCALL select_helpers() [L592] FCALL select_features() [L593] CALL, EXPR valid_product() [L504] int retValue_acc ; [L507] retValue_acc = 1 [L508] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L593] RET, EXPR valid_product() [L593] tmp = valid_product() [L595] COND TRUE \read(tmp) [L597] FCALL setup() [L598] CALL runTest() [L580] CALL test() [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L64] COND TRUE 1 [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L107] CALL timeShift() [L136] COND FALSE !(\read(pumpRunning)) [L143] COND TRUE \read(systemActive) [L145] CALL processEnvironment() [L191] int tmp ; [L194] COND FALSE !(\read(pumpRunning)) [L209] CALL processEnvironment__wrappee__highWaterSensor() [L165] int tmp ; [L168] COND TRUE ! pumpRunning [L170] CALL, EXPR isHighWaterLevel() [L306] int retValue_acc ; [L307] int tmp ; [L308] int tmp___0 ; [L312] CALL, EXPR isHighWaterSensorDry() [L452] int retValue_acc ; [L455] COND TRUE waterLevel < 2 [L456] retValue_acc = 1 [L457] return (retValue_acc); [L312] RET, EXPR isHighWaterSensorDry() [L312] tmp = isHighWaterSensorDry() [L314] COND TRUE \read(tmp) [L315] tmp___0 = 0 [L319] retValue_acc = tmp___0 [L320] return (retValue_acc); [L170] RET, EXPR isHighWaterLevel() [L170] tmp = isHighWaterLevel() [L172] COND FALSE !(\read(tmp)) [L178] FCALL processEnvironment__wrappee__base() [L209] RET processEnvironment__wrappee__highWaterSensor() [L145] RET processEnvironment() [L151] CALL __utac_acc__Specification4_spec__1() [L347] int tmp ; [L348] int tmp___0 ; [L352] CALL, EXPR getWaterLevel() [L443] int retValue_acc ; [L446] retValue_acc = waterLevel [L447] return (retValue_acc); [L352] RET, EXPR getWaterLevel() [L352] tmp = getWaterLevel() [L354] COND FALSE !(tmp == 0) [L151] RET __utac_acc__Specification4_spec__1() [L107] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-25 17:07:27,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb54d187-644b-4a83-87ce-0810915f7f5e/bin/uautomizer-ZsLfNo2U6R/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)