./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 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_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8 --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 faabc130c8aadbb7390121b68f1c41e161e50da9443e348cb1c3db1c45e9e0cb --- 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-2329fc7 [2022-12-13 12:20:12,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:20:12,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:20:13,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:20:13,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:20:13,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:20:13,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:20:13,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:20:13,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:20:13,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:20:13,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:20:13,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:20:13,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:20:13,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:20:13,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:20:13,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:20:13,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:20:13,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:20:13,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:20:13,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:20:13,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:20:13,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:20:13,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:20:13,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:20:13,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:20:13,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:20:13,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:20:13,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:20:13,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:20:13,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:20:13,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:20:13,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:20:13,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:20:13,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:20:13,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:20:13,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:20:13,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:20:13,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:20:13,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:20:13,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:20:13,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:20:13,034 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 12:20:13,054 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:20:13,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:20:13,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:20:13,054 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:20:13,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:20:13,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:20:13,056 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:20:13,056 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 12:20:13,056 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 12:20:13,056 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 12:20:13,056 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 12:20:13,056 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 12:20:13,056 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 12:20:13,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:20:13,057 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:20:13,057 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:20:13,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:20:13,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:20:13,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:20:13,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 12:20:13,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 12:20:13,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 12:20:13,058 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:20:13,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:20:13,058 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 12:20:13,058 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:20:13,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 12:20:13,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:20:13,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:20:13,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:20:13,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:20:13,060 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 12:20:13,060 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_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faabc130c8aadbb7390121b68f1c41e161e50da9443e348cb1c3db1c45e9e0cb [2022-12-13 12:20:13,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:20:13,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:20:13,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:20:13,259 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:20:13,259 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:20:13,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2022-12-13 12:20:15,874 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:20:16,049 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:20:16,050 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2022-12-13 12:20:16,063 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/data/b90488b81/ea13110640fb4b449c20b5f1bba77b3c/FLAG7eb01dae6 [2022-12-13 12:20:16,076 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/data/b90488b81/ea13110640fb4b449c20b5f1bba77b3c [2022-12-13 12:20:16,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:20:16,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:20:16,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:20:16,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:20:16,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:20:16,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:20:16" (1/1) ... [2022-12-13 12:20:16,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20017d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:16, skipping insertion in model container [2022-12-13 12:20:16,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:20:16" (1/1) ... [2022-12-13 12:20:16,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:20:16,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:20:16,261 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_3c406b91-956f-4e5d-8567-bd0441c5ea09/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c[5087,5100] [2022-12-13 12:20:16,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:20:16,315 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:20:16,331 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_3c406b91-956f-4e5d-8567-bd0441c5ea09/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c[5087,5100] [2022-12-13 12:20:16,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:20:16,373 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:20:16,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:16 WrapperNode [2022-12-13 12:20:16,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:20:16,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:20:16,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:20:16,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:20:16,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:16" (1/1) ... [2022-12-13 12:20:16,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:16" (1/1) ... [2022-12-13 12:20:16,410 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 53, calls inlined = 80, statements flattened = 548 [2022-12-13 12:20:16,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:20:16,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:20:16,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:20:16,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:20:16,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:16" (1/1) ... [2022-12-13 12:20:16,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:16" (1/1) ... [2022-12-13 12:20:16,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:16" (1/1) ... [2022-12-13 12:20:16,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:16" (1/1) ... [2022-12-13 12:20:16,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:16" (1/1) ... [2022-12-13 12:20:16,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:16" (1/1) ... [2022-12-13 12:20:16,430 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:16" (1/1) ... [2022-12-13 12:20:16,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:16" (1/1) ... [2022-12-13 12:20:16,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:20:16,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:20:16,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:20:16,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:20:16,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:16" (1/1) ... [2022-12-13 12:20:16,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:20:16,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:20:16,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:20:16,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 12:20:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:20:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:20:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:20:16,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:20:16,557 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:20:16,558 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:20:16,800 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:20:16,806 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:20:16,806 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 12:20:16,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:20:16 BoogieIcfgContainer [2022-12-13 12:20:16,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:20:16,808 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 12:20:16,808 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 12:20:16,811 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 12:20:16,812 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:20:16,812 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 12:20:16" (1/3) ... [2022-12-13 12:20:16,812 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2be42ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:20:16, skipping insertion in model container [2022-12-13 12:20:16,812 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:20:16,812 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:20:16" (2/3) ... [2022-12-13 12:20:16,813 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2be42ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:20:16, skipping insertion in model container [2022-12-13 12:20:16,813 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:20:16,813 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:20:16" (3/3) ... [2022-12-13 12:20:16,814 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product39.cil.c [2022-12-13 12:20:16,853 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 12:20:16,853 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 12:20:16,853 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 12:20:16,854 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 12:20:16,854 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 12:20:16,854 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 12:20:16,854 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 12:20:16,854 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 12:20:16,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.3803680981595092) internal successors, (225), 163 states have internal predecessors, (225), 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) [2022-12-13 12:20:16,874 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-12-13 12:20:16,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:20:16,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:20:16,879 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:20:16,879 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:20:16,879 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 12:20:16,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.3803680981595092) internal successors, (225), 163 states have internal predecessors, (225), 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) [2022-12-13 12:20:16,884 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-12-13 12:20:16,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:20:16,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:20:16,884 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:20:16,884 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:20:16,888 INFO L748 eck$LassoCheckResult]: Stem: 44#$Ultimate##0true 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 54#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 36#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 132#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 116#valid_product_returnLabel#1true main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 43#L241true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 95#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 130#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 99#L316-2true [2022-12-13 12:20:16,889 INFO L750 eck$LassoCheckResult]: Loop: 99#L316-2true assume !false; 9#L317true assume test_~splverifierCounter~0#1 < 4; 156#L318true test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 41#L326true assume !(0 != test_~tmp~2#1); 21#L326-2true test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 102#L336true assume !(0 != test_~tmp___0~1#1); 104#L336-2true test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 59#L346true assume 0 != test_~tmp___2~0#1; 40#L352-2true assume { :begin_inline_timeShift } true; 143#L382true assume !(0 != ~pumpRunning~0); 23#L382-2true assume !(0 != ~systemActive~0); 85#L389-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 92#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1; 113#L274true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 103#L274-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 83#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 99#L316-2true [2022-12-13 12:20:16,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:20:16,893 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-12-13 12:20:16,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:20:16,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846358777] [2022-12-13 12:20:16,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:20:16,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:20:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:16,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:20:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:16,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:20:16,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:20:16,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1457954550, now seen corresponding path program 1 times [2022-12-13 12:20:16,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:20:16,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47445981] [2022-12-13 12:20:16,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:20:16,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:20:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:16,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:20:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:17,003 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:20:17,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:20:17,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1620241933, now seen corresponding path program 1 times [2022-12-13 12:20:17,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:20:17,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42566167] [2022-12-13 12:20:17,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:20:17,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:20:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:20:17,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:20:17,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:20:17,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42566167] [2022-12-13 12:20:17,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42566167] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:20:17,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:20:17,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:20:17,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189489622] [2022-12-13 12:20:17,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:20:17,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:20:17,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:20:17,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:20:17,325 INFO L87 Difference]: Start difference. First operand has 164 states, 163 states have (on average 1.3803680981595092) internal successors, (225), 163 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:20:17,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:20:17,420 INFO L93 Difference]: Finished difference Result 381 states and 504 transitions. [2022-12-13 12:20:17,421 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 381 states and 504 transitions. [2022-12-13 12:20:17,425 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 245 [2022-12-13 12:20:17,430 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 381 states to 351 states and 474 transitions. [2022-12-13 12:20:17,430 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 351 [2022-12-13 12:20:17,431 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 351 [2022-12-13 12:20:17,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 351 states and 474 transitions. [2022-12-13 12:20:17,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:20:17,433 INFO L218 hiAutomatonCegarLoop]: Abstraction has 351 states and 474 transitions. [2022-12-13 12:20:17,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states and 474 transitions. [2022-12-13 12:20:17,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 206. [2022-12-13 12:20:17,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 206 states have (on average 1.3495145631067962) internal successors, (278), 205 states have internal predecessors, (278), 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) [2022-12-13 12:20:17,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2022-12-13 12:20:17,460 INFO L240 hiAutomatonCegarLoop]: Abstraction has 206 states and 278 transitions. [2022-12-13 12:20:17,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:20:17,464 INFO L428 stractBuchiCegarLoop]: Abstraction has 206 states and 278 transitions. [2022-12-13 12:20:17,464 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 12:20:17,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 206 states and 278 transitions. [2022-12-13 12:20:17,466 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2022-12-13 12:20:17,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:20:17,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:20:17,467 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:20:17,467 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] [2022-12-13 12:20:17,467 INFO L748 eck$LassoCheckResult]: Stem: 639#$Ultimate##0 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 640#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 623#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 624#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 695#valid_product_returnLabel#1 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 635#L241 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 636#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 685#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 678#L316-2 [2022-12-13 12:20:17,467 INFO L750 eck$LassoCheckResult]: Loop: 678#L316-2 assume !false; 574#L317 assume test_~splverifierCounter~0#1 < 4; 575#L318 test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 632#L326 assume !(0 != test_~tmp~2#1); 600#L326-2 test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 601#L336 assume !(0 != test_~tmp___0~1#1); 578#L336-2 test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 656#L346 assume 0 != test_~tmp___2~0#1; 630#L352-2 assume { :begin_inline_timeShift } true; 631#L382 assume !(0 != ~pumpRunning~0); 602#L382-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 603#L440 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 689#L414-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 563#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 564#L414-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 625#L440-1 assume { :end_inline_processEnvironment } true; 626#L389-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 680#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1; 683#L274 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 668#L274-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 677#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 678#L316-2 [2022-12-13 12:20:17,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:20:17,468 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-12-13 12:20:17,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:20:17,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957315799] [2022-12-13 12:20:17,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:20:17,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:20:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:17,475 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:20:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:17,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:20:17,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:20:17,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1201305590, now seen corresponding path program 1 times [2022-12-13 12:20:17,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:20:17,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510702163] [2022-12-13 12:20:17,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:20:17,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:20:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:20:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:20:17,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:20:17,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510702163] [2022-12-13 12:20:17,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510702163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:20:17,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:20:17,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:20:17,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388722227] [2022-12-13 12:20:17,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:20:17,499 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 12:20:17,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:20:17,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:20:17,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:20:17,500 INFO L87 Difference]: Start difference. First operand 206 states and 278 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) [2022-12-13 12:20:17,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:20:17,551 INFO L93 Difference]: Finished difference Result 259 states and 335 transitions. [2022-12-13 12:20:17,552 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 259 states and 335 transitions. [2022-12-13 12:20:17,553 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 185 [2022-12-13 12:20:17,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 259 states to 259 states and 335 transitions. [2022-12-13 12:20:17,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 259 [2022-12-13 12:20:17,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 259 [2022-12-13 12:20:17,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 259 states and 335 transitions. [2022-12-13 12:20:17,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:20:17,555 INFO L218 hiAutomatonCegarLoop]: Abstraction has 259 states and 335 transitions. [2022-12-13 12:20:17,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states and 335 transitions. [2022-12-13 12:20:17,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2022-12-13 12:20:17,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 259 states have (on average 1.2934362934362935) internal successors, (335), 258 states have internal predecessors, (335), 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) [2022-12-13 12:20:17,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 335 transitions. [2022-12-13 12:20:17,562 INFO L240 hiAutomatonCegarLoop]: Abstraction has 259 states and 335 transitions. [2022-12-13 12:20:17,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:20:17,563 INFO L428 stractBuchiCegarLoop]: Abstraction has 259 states and 335 transitions. [2022-12-13 12:20:17,563 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 12:20:17,563 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 259 states and 335 transitions. [2022-12-13 12:20:17,564 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 185 [2022-12-13 12:20:17,564 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:20:17,564 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:20:17,565 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:20:17,565 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] [2022-12-13 12:20:17,565 INFO L748 eck$LassoCheckResult]: Stem: 1108#$Ultimate##0 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1109#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1095#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1096#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1176#valid_product_returnLabel#1 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 1106#L241 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1107#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1159#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1164#L316-2 [2022-12-13 12:20:17,565 INFO L750 eck$LassoCheckResult]: Loop: 1164#L316-2 assume !false; 1043#L317 assume test_~splverifierCounter~0#1 < 4; 1044#L318 test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1285#L326 assume !(0 != test_~tmp~2#1); 1283#L326-2 test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 1281#L336 assume !(0 != test_~tmp___0~1#1); 1279#L336-2 test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 1271#L346 assume 0 != test_~tmp___2~0#1; 1268#L352-2 assume { :begin_inline_timeShift } true; 1195#L382 assume !(0 != ~pumpRunning~0); 1073#L382-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1074#L440 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 1166#L414-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret27#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1129#L140-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1120#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret27#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret27#1;havoc isHighWaterLevel_#t~ret27#1; 1121#L542-3 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1125#L542-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1126#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret16#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret16#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1; 1189#L418-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1114#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1115#L414-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1097#L440-1 assume { :end_inline_processEnvironment } true; 1098#L389-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1155#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1; 1156#L274 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 1140#L274-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1167#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1164#L316-2 [2022-12-13 12:20:17,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:20:17,566 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-12-13 12:20:17,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:20:17,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825261907] [2022-12-13 12:20:17,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:20:17,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:20:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:17,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:20:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:17,578 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:20:17,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:20:17,579 INFO L85 PathProgramCache]: Analyzing trace with hash -613253906, now seen corresponding path program 1 times [2022-12-13 12:20:17,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:20:17,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390214166] [2022-12-13 12:20:17,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:20:17,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:20:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:17,584 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:20:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:17,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:20:17,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:20:17,591 INFO L85 PathProgramCache]: Analyzing trace with hash -442478491, now seen corresponding path program 1 times [2022-12-13 12:20:17,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:20:17,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026736257] [2022-12-13 12:20:17,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:20:17,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:20:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:17,599 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:20:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:17,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:20:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:18,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:20:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:20:18,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 12:20:18 BoogieIcfgContainer [2022-12-13 12:20:18,447 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 12:20:18,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:20:18,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:20:18,448 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:20:18,449 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:20:16" (3/4) ... [2022-12-13 12:20:18,451 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 12:20:18,494 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:20:18,494 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:20:18,495 INFO L158 Benchmark]: Toolchain (without parser) took 2415.49ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 102.0MB in the beginning and 130.2MB in the end (delta: -28.2MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-12-13 12:20:18,496 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 98.6MB. Free memory was 68.5MB in the beginning and 68.4MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:20:18,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.50ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 83.5MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 12:20:18,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.07ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 80.3MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:20:18,497 INFO L158 Benchmark]: Boogie Preprocessor took 23.39ms. Allocated memory is still 142.6MB. Free memory was 80.3MB in the beginning and 78.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:20:18,497 INFO L158 Benchmark]: RCFGBuilder took 373.42ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 93.3MB in the end (delta: -15.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-12-13 12:20:18,497 INFO L158 Benchmark]: BuchiAutomizer took 1639.14ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 93.3MB in the beginning and 133.4MB in the end (delta: -40.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:20:18,498 INFO L158 Benchmark]: Witness Printer took 46.65ms. Allocated memory is still 172.0MB. Free memory was 132.3MB in the beginning and 130.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:20:18,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 98.6MB. Free memory was 68.5MB in the beginning and 68.4MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.50ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 83.5MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.07ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 80.3MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.39ms. Allocated memory is still 142.6MB. Free memory was 80.3MB in the beginning and 78.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 373.42ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 93.3MB in the end (delta: -15.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1639.14ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 93.3MB in the beginning and 133.4MB in the end (delta: -40.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 46.65ms. Allocated memory is still 172.0MB. Free memory was 132.3MB in the beginning and 130.2MB in the end (delta: 2.1MB). 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 259 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 145 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, 1142 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1142 mSDsluCounter, 1373 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 945 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 428 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 316]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L151] int cleanupTimeShifts = 4; [L257] int methAndRunningLastTime ; [L375] int pumpRunning = 0; [L376] int systemActive = 1; [L772] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L232] int retValue_acc ; [L233] int tmp ; [L237] FCALL select_helpers() [L238] FCALL select_features() [L239] CALL, EXPR valid_product() [L594] int retValue_acc ; [L597] retValue_acc = 1 [L598] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L239] RET, EXPR valid_product() [L239] tmp = valid_product() [L241] COND TRUE \read(tmp) [L243] FCALL setup() [L244] CALL runTest() [L222] CALL __utac_acc__Specification2_spec__1() [L262] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L222] RET __utac_acc__Specification2_spec__1() [L223] CALL test() [L307] int splverifierCounter ; [L308] int tmp ; [L309] int tmp___0 ; [L310] int tmp___1 ; [L311] int tmp___2 ; [L314] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L316] COND TRUE 1 [L318] COND TRUE splverifierCounter < 4 [L324] tmp = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp)) [L334] tmp___0 = __VERIFIER_nondet_int() [L336] COND FALSE !(\read(tmp___0)) [L344] tmp___2 = __VERIFIER_nondet_int() [L346] COND TRUE \read(tmp___2) [L361] CALL timeShift() [L382] COND FALSE !(\read(pumpRunning)) [L389] COND TRUE \read(systemActive) [L391] CALL processEnvironment() [L437] int tmp ; [L440] COND FALSE !(\read(pumpRunning)) [L455] CALL processEnvironment__wrappee__highWaterSensor() [L411] int tmp ; [L414] COND TRUE ! pumpRunning [L416] CALL, EXPR isHighWaterLevel() [L534] int retValue_acc ; [L535] int tmp ; [L536] int tmp___0 ; [L540] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L540] RET, EXPR isHighWaterSensorDry() [L540] tmp = isHighWaterSensorDry() [L542] COND TRUE \read(tmp) [L543] tmp___0 = 0 [L547] retValue_acc = tmp___0 [L548] return (retValue_acc); [L416] RET, EXPR isHighWaterLevel() [L416] tmp = isHighWaterLevel() [L418] COND FALSE !(\read(tmp)) [L424] FCALL processEnvironment__wrappee__base() [L455] RET processEnvironment__wrappee__highWaterSensor() [L391] RET processEnvironment() [L397] CALL __utac_acc__Specification2_spec__2() [L267] int tmp ; [L268] int tmp___0 ; [L272] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L272] RET, EXPR isMethaneLevelCritical() [L272] tmp = isMethaneLevelCritical() [L274] COND FALSE !(\read(tmp)) [L290] methAndRunningLastTime = 0 [L397] RET __utac_acc__Specification2_spec__2() [L361] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 316]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L151] int cleanupTimeShifts = 4; [L257] int methAndRunningLastTime ; [L375] int pumpRunning = 0; [L376] int systemActive = 1; [L772] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L232] int retValue_acc ; [L233] int tmp ; [L237] FCALL select_helpers() [L238] FCALL select_features() [L239] CALL, EXPR valid_product() [L594] int retValue_acc ; [L597] retValue_acc = 1 [L598] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L239] RET, EXPR valid_product() [L239] tmp = valid_product() [L241] COND TRUE \read(tmp) [L243] FCALL setup() [L244] CALL runTest() [L222] CALL __utac_acc__Specification2_spec__1() [L262] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L222] RET __utac_acc__Specification2_spec__1() [L223] CALL test() [L307] int splverifierCounter ; [L308] int tmp ; [L309] int tmp___0 ; [L310] int tmp___1 ; [L311] int tmp___2 ; [L314] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L316] COND TRUE 1 [L318] COND TRUE splverifierCounter < 4 [L324] tmp = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp)) [L334] tmp___0 = __VERIFIER_nondet_int() [L336] COND FALSE !(\read(tmp___0)) [L344] tmp___2 = __VERIFIER_nondet_int() [L346] COND TRUE \read(tmp___2) [L361] CALL timeShift() [L382] COND FALSE !(\read(pumpRunning)) [L389] COND TRUE \read(systemActive) [L391] CALL processEnvironment() [L437] int tmp ; [L440] COND FALSE !(\read(pumpRunning)) [L455] CALL processEnvironment__wrappee__highWaterSensor() [L411] int tmp ; [L414] COND TRUE ! pumpRunning [L416] CALL, EXPR isHighWaterLevel() [L534] int retValue_acc ; [L535] int tmp ; [L536] int tmp___0 ; [L540] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L540] RET, EXPR isHighWaterSensorDry() [L540] tmp = isHighWaterSensorDry() [L542] COND TRUE \read(tmp) [L543] tmp___0 = 0 [L547] retValue_acc = tmp___0 [L548] return (retValue_acc); [L416] RET, EXPR isHighWaterLevel() [L416] tmp = isHighWaterLevel() [L418] COND FALSE !(\read(tmp)) [L424] FCALL processEnvironment__wrappee__base() [L455] RET processEnvironment__wrappee__highWaterSensor() [L391] RET processEnvironment() [L397] CALL __utac_acc__Specification2_spec__2() [L267] int tmp ; [L268] int tmp___0 ; [L272] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L272] RET, EXPR isMethaneLevelCritical() [L272] tmp = isMethaneLevelCritical() [L274] COND FALSE !(\read(tmp)) [L290] methAndRunningLastTime = 0 [L397] RET __utac_acc__Specification2_spec__2() [L361] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 12:20:18,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c406b91-956f-4e5d-8567-bd0441c5ea09/bin/uautomizer-uyxdKDjOR8/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)