./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.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_fe05fe3d-ed32-49b8-b572-2a858dcceec5/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe05fe3d-ed32-49b8-b572-2a858dcceec5/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_fe05fe3d-ed32-49b8-b572-2a858dcceec5/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe05fe3d-ed32-49b8-b572-2a858dcceec5/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe05fe3d-ed32-49b8-b572-2a858dcceec5/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_fe05fe3d-ed32-49b8-b572-2a858dcceec5/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 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 --- 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 14:58:13,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:58:13,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:58:13,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:58:13,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:58:13,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:58:13,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:58:13,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:58:13,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:58:13,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:58:13,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:58:13,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:58:13,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:58:13,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:58:13,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:58:13,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:58:13,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:58:13,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:58:13,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:58:13,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:58:13,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:58:13,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:58:13,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:58:13,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:58:13,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:58:13,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:58:13,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:58:13,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:58:13,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:58:13,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:58:13,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:58:13,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:58:13,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:58:13,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:58:13,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:58:13,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:58:13,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:58:13,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:58:13,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:58:13,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:58:13,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:58:13,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe05fe3d-ed32-49b8-b572-2a858dcceec5/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 14:58:13,873 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:58:13,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:58:13,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:58:13,874 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:58:13,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:58:13,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:58:13,876 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:58:13,876 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 14:58:13,876 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 14:58:13,876 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 14:58:13,876 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 14:58:13,877 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 14:58:13,877 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 14:58:13,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:58:13,877 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:58:13,877 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:58:13,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:58:13,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:58:13,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:58:13,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 14:58:13,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 14:58:13,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 14:58:13,879 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:58:13,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:58:13,879 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 14:58:13,879 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:58:13,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 14:58:13,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:58:13,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:58:13,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:58:13,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:58:13,881 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 14:58:13,881 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_fe05fe3d-ed32-49b8-b572-2a858dcceec5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe05fe3d-ed32-49b8-b572-2a858dcceec5/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 [2022-12-13 14:58:14,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:58:14,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:58:14,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:58:14,079 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:58:14,080 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:58:14,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe05fe3d-ed32-49b8-b572-2a858dcceec5/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2022-12-13 14:58:16,640 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:58:16,802 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:58:16,802 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe05fe3d-ed32-49b8-b572-2a858dcceec5/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2022-12-13 14:58:16,810 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe05fe3d-ed32-49b8-b572-2a858dcceec5/bin/uautomizer-uyxdKDjOR8/data/e3f7ad352/65156d9f198048c28825cbd6da2ba13f/FLAG7589c2b2b [2022-12-13 14:58:16,820 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe05fe3d-ed32-49b8-b572-2a858dcceec5/bin/uautomizer-uyxdKDjOR8/data/e3f7ad352/65156d9f198048c28825cbd6da2ba13f [2022-12-13 14:58:16,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:58:16,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:58:16,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:58:16,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:58:16,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:58:16,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:58:16" (1/1) ... [2022-12-13 14:58:16,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49a3ea61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:16, skipping insertion in model container [2022-12-13 14:58:16,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:58:16" (1/1) ... [2022-12-13 14:58:16,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:58:16,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:58:16,982 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_fe05fe3d-ed32-49b8-b572-2a858dcceec5/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c[5279,5292] [2022-12-13 14:58:17,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:58:17,033 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:58:17,050 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_fe05fe3d-ed32-49b8-b572-2a858dcceec5/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c[5279,5292] [2022-12-13 14:58:17,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:58:17,092 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:58:17,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:17 WrapperNode [2022-12-13 14:58:17,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:58:17,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:58:17,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:58:17,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:58:17,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:17" (1/1) ... [2022-12-13 14:58:17,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:17" (1/1) ... [2022-12-13 14:58:17,130 INFO L138 Inliner]: procedures = 55, calls = 99, calls flagged for inlining = 52, calls inlined = 62, statements flattened = 439 [2022-12-13 14:58:17,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:58:17,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:58:17,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:58:17,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:58:17,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:17" (1/1) ... [2022-12-13 14:58:17,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:17" (1/1) ... [2022-12-13 14:58:17,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:17" (1/1) ... [2022-12-13 14:58:17,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:17" (1/1) ... [2022-12-13 14:58:17,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:17" (1/1) ... [2022-12-13 14:58:17,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:17" (1/1) ... [2022-12-13 14:58:17,149 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:17" (1/1) ... [2022-12-13 14:58:17,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:17" (1/1) ... [2022-12-13 14:58:17,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:58:17,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:58:17,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:58:17,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:58:17,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:17" (1/1) ... [2022-12-13 14:58:17,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:58:17,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe05fe3d-ed32-49b8-b572-2a858dcceec5/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:58:17,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe05fe3d-ed32-49b8-b572-2a858dcceec5/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:58:17,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe05fe3d-ed32-49b8-b572-2a858dcceec5/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 14:58:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:58:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:58:17,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:58:17,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:58:17,270 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:58:17,272 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:58:17,523 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:58:17,528 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:58:17,528 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 14:58:17,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:58:17 BoogieIcfgContainer [2022-12-13 14:58:17,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:58:17,531 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 14:58:17,531 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 14:58:17,534 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 14:58:17,535 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:58:17,535 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 02:58:16" (1/3) ... [2022-12-13 14:58:17,536 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61f34d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 02:58:17, skipping insertion in model container [2022-12-13 14:58:17,536 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:58:17,537 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:58:17" (2/3) ... [2022-12-13 14:58:17,537 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61f34d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 02:58:17, skipping insertion in model container [2022-12-13 14:58:17,537 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:58:17,537 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:58:17" (3/3) ... [2022-12-13 14:58:17,539 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2022-12-13 14:58:17,595 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 14:58:17,595 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 14:58:17,595 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 14:58:17,595 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 14:58:17,595 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 14:58:17,596 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 14:58:17,596 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 14:58:17,596 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 14:58:17,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 128 states, 127 states have (on average 1.3700787401574803) internal successors, (174), 127 states have internal predecessors, (174), 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 14:58:17,625 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2022-12-13 14:58:17,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:58:17,626 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:58:17,632 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:58:17,632 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:58:17,632 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 14:58:17,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 128 states, 127 states have (on average 1.3700787401574803) internal successors, (174), 127 states have internal predecessors, (174), 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 14:58:17,638 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2022-12-13 14:58:17,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:58:17,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:58:17,639 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:58:17,639 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:58:17,648 INFO L748 eck$LassoCheckResult]: Stem: 27#$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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 40#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 23#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 105#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 90#valid_product_returnLabel#1true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 52#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 73#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 120#L906-2true [2022-12-13 14:58:17,649 INFO L750 eck$LassoCheckResult]: Loop: 120#L906-2true assume !false; 57#L907true assume test_~splverifierCounter~0#1 < 4; 75#L908true test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 115#L916true assume !(0 != test_~tmp~8#1); 14#L916-2true test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 95#L926true assume !(0 != test_~tmp___0~2#1); 101#L926-2true test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 33#L936true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 49#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 108#L944-2true assume { :begin_inline_timeShift } true; 72#L710true assume !(0 != ~pumpRunning~0); 106#L710-2true assume !(0 != ~systemActive~0); 55#L717-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 71#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 21#L167true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 111#L173-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 63#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 120#L906-2true [2022-12-13 14:58:17,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:17,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 14:58:17,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:17,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974660235] [2022-12-13 14:58:17,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:17,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:17,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:58:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:17,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:58:17,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:17,750 INFO L85 PathProgramCache]: Analyzing trace with hash 844235795, now seen corresponding path program 1 times [2022-12-13 14:58:17,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:17,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185587002] [2022-12-13 14:58:17,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:17,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:17,805 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 14:58:17,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:58:17,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185587002] [2022-12-13 14:58:17,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185587002] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:58:17,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:58:17,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:58:17,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578825635] [2022-12-13 14:58:17,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:58:17,810 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 14:58:17,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:58:17,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:58:17,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:58:17,835 INFO L87 Difference]: Start difference. First operand has 128 states, 127 states have (on average 1.3700787401574803) internal successors, (174), 127 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 14:58:17,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:58:17,880 INFO L93 Difference]: Finished difference Result 241 states and 315 transitions. [2022-12-13 14:58:17,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 315 transitions. [2022-12-13 14:58:17,885 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 156 [2022-12-13 14:58:17,888 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 221 states and 294 transitions. [2022-12-13 14:58:17,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 221 [2022-12-13 14:58:17,889 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 221 [2022-12-13 14:58:17,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 221 states and 294 transitions. [2022-12-13 14:58:17,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:58:17,890 INFO L218 hiAutomatonCegarLoop]: Abstraction has 221 states and 294 transitions. [2022-12-13 14:58:17,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states and 294 transitions. [2022-12-13 14:58:17,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 218. [2022-12-13 14:58:17,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 218 states have (on average 1.3302752293577982) internal successors, (290), 217 states have internal predecessors, (290), 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 14:58:17,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 290 transitions. [2022-12-13 14:58:17,916 INFO L240 hiAutomatonCegarLoop]: Abstraction has 218 states and 290 transitions. [2022-12-13 14:58:17,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:58:17,920 INFO L428 stractBuchiCegarLoop]: Abstraction has 218 states and 290 transitions. [2022-12-13 14:58:17,920 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 14:58:17,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 218 states and 290 transitions. [2022-12-13 14:58:17,922 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 153 [2022-12-13 14:58:17,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:58:17,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:58:17,922 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:58:17,922 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] [2022-12-13 14:58:17,923 INFO L748 eck$LassoCheckResult]: Stem: 417#$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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 418#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 412#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 413#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 486#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 449#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 450#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 463#L906-2 [2022-12-13 14:58:17,923 INFO L750 eck$LassoCheckResult]: Loop: 463#L906-2 assume !false; 456#L907 assume test_~splverifierCounter~0#1 < 4; 457#L908 test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 565#L916 assume !(0 != test_~tmp~8#1); 563#L916-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 561#L926 assume !(0 != test_~tmp___0~2#1); 559#L926-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 558#L936 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 427#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 447#L944-2 assume { :begin_inline_timeShift } true; 555#L710 assume !(0 != ~pumpRunning~0); 498#L710-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 429#L742 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 430#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 400#L742-1 assume { :end_inline_processEnvironment } true; 439#L717-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 454#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 408#L167 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 410#L173-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 462#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 463#L906-2 [2022-12-13 14:58:17,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:17,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 14:58:17,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:17,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898524241] [2022-12-13 14:58:17,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:17,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:17,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:58:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:17,942 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:58:17,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:17,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1290321285, now seen corresponding path program 1 times [2022-12-13 14:58:17,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:17,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482992306] [2022-12-13 14:58:17,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:17,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:17,961 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 14:58:17,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:58:17,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482992306] [2022-12-13 14:58:17,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482992306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:58:17,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:58:17,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:58:17,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472377545] [2022-12-13 14:58:17,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:58:17,963 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 14:58:17,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:58:17,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:58:17,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:58:17,964 INFO L87 Difference]: Start difference. First operand 218 states and 290 transitions. cyclomatic complexity: 75 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 14:58:18,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:58:18,014 INFO L93 Difference]: Finished difference Result 342 states and 443 transitions. [2022-12-13 14:58:18,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 342 states and 443 transitions. [2022-12-13 14:58:18,017 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 247 [2022-12-13 14:58:18,020 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 342 states to 342 states and 443 transitions. [2022-12-13 14:58:18,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 342 [2022-12-13 14:58:18,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 342 [2022-12-13 14:58:18,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 443 transitions. [2022-12-13 14:58:18,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:58:18,022 INFO L218 hiAutomatonCegarLoop]: Abstraction has 342 states and 443 transitions. [2022-12-13 14:58:18,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 443 transitions. [2022-12-13 14:58:18,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-12-13 14:58:18,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 342 states have (on average 1.2953216374269005) internal successors, (443), 341 states have internal predecessors, (443), 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 14:58:18,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 443 transitions. [2022-12-13 14:58:18,039 INFO L240 hiAutomatonCegarLoop]: Abstraction has 342 states and 443 transitions. [2022-12-13 14:58:18,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:58:18,040 INFO L428 stractBuchiCegarLoop]: Abstraction has 342 states and 443 transitions. [2022-12-13 14:58:18,040 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 14:58:18,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 342 states and 443 transitions. [2022-12-13 14:58:18,043 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 247 [2022-12-13 14:58:18,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:58:18,043 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:58:18,043 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:58:18,044 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] [2022-12-13 14:58:18,044 INFO L748 eck$LassoCheckResult]: Stem: 986#$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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 987#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 981#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 982#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1066#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1022#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1023#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1042#L906-2 [2022-12-13 14:58:18,044 INFO L750 eck$LassoCheckResult]: Loop: 1042#L906-2 assume !false; 1030#L907 assume test_~splverifierCounter~0#1 < 4; 1031#L908 test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1054#L916 assume !(0 != test_~tmp~8#1); 964#L916-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 965#L926 assume !(0 != test_~tmp___0~2#1); 1038#L926-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 998#L936 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 999#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 957#L944-2 assume { :begin_inline_timeShift } true; 1052#L710 assume !(0 != ~pumpRunning~0); 1053#L710-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1000#L742 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1; 1001#L278 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; 972#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 973#L862 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1058#L862-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 1079#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 1062#L746 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 966#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 967#L742-1 assume { :end_inline_processEnvironment } true; 1126#L717-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 1127#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 976#L167 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 978#L173-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1041#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1042#L906-2 [2022-12-13 14:58:18,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:18,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 14:58:18,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:18,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118462931] [2022-12-13 14:58:18,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:18,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:18,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:58:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:18,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:58:18,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:18,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1659278637, now seen corresponding path program 1 times [2022-12-13 14:58:18,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:18,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687338906] [2022-12-13 14:58:18,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:18,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:18,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:58:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:18,094 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:58:18,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:18,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1532837361, now seen corresponding path program 1 times [2022-12-13 14:58:18,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:18,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131655223] [2022-12-13 14:58:18,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:18,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:58:18,197 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 14:58:18,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:58:18,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131655223] [2022-12-13 14:58:18,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131655223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:58:18,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:58:18,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:58:18,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159316382] [2022-12-13 14:58:18,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:58:18,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:58:18,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:58:18,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:58:18,395 INFO L87 Difference]: Start difference. First operand 342 states and 443 transitions. cyclomatic complexity: 104 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 14:58:18,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:58:18,512 INFO L93 Difference]: Finished difference Result 1189 states and 1531 transitions. [2022-12-13 14:58:18,512 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1189 states and 1531 transitions. [2022-12-13 14:58:18,521 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 910 [2022-12-13 14:58:18,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1189 states to 1189 states and 1531 transitions. [2022-12-13 14:58:18,528 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1189 [2022-12-13 14:58:18,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1189 [2022-12-13 14:58:18,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1189 states and 1531 transitions. [2022-12-13 14:58:18,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:58:18,533 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1189 states and 1531 transitions. [2022-12-13 14:58:18,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states and 1531 transitions. [2022-12-13 14:58:18,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 677. [2022-12-13 14:58:18,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 677 states have (on average 1.2747415066469718) internal successors, (863), 676 states have internal predecessors, (863), 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 14:58:18,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 863 transitions. [2022-12-13 14:58:18,557 INFO L240 hiAutomatonCegarLoop]: Abstraction has 677 states and 863 transitions. [2022-12-13 14:58:18,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:58:18,558 INFO L428 stractBuchiCegarLoop]: Abstraction has 677 states and 863 transitions. [2022-12-13 14:58:18,558 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 14:58:18,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 677 states and 863 transitions. [2022-12-13 14:58:18,562 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 494 [2022-12-13 14:58:18,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:58:18,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:58:18,563 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:58:18,563 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:58:18,563 INFO L748 eck$LassoCheckResult]: Stem: 2535#$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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2536#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 2531#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2532#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 2619#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 2571#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2572#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2585#L906-2 [2022-12-13 14:58:18,564 INFO L750 eck$LassoCheckResult]: Loop: 2585#L906-2 assume !false; 2576#L907 assume test_~splverifierCounter~0#1 < 4; 2577#L908 test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 2598#L916 assume !(0 != test_~tmp~8#1); 2512#L916-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2513#L926 assume !(0 != test_~tmp___0~2#1); 2583#L926-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 2545#L936 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2546#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2506#L944-2 assume { :begin_inline_timeShift } true; 2596#L710 assume !(0 != ~pumpRunning~0); 2597#L710-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2913#L742 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1; 2912#L278 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; 2911#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 2910#L862 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2909#L862-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 2908#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 2907#L746 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2902#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 2896#L742-1 assume { :end_inline_processEnvironment } true; 2840#L717-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 2838#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 2836#L167 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 2834#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1; 2828#L173 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 2826#L173-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2584#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2585#L906-2 [2022-12-13 14:58:18,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:18,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-12-13 14:58:18,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:18,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453335428] [2022-12-13 14:58:18,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:18,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:18,572 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:58:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:18,580 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:58:18,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:18,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1135155616, now seen corresponding path program 1 times [2022-12-13 14:58:18,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:18,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562234656] [2022-12-13 14:58:18,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:18,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:18,588 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:58:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:18,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:58:18,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:18,596 INFO L85 PathProgramCache]: Analyzing trace with hash -115826332, now seen corresponding path program 1 times [2022-12-13 14:58:18,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:18,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884201972] [2022-12-13 14:58:18,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:18,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:18,607 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:58:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:18,620 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:58:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:19,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:58:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:58:19,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 02:58:19 BoogieIcfgContainer [2022-12-13 14:58:19,445 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 14:58:19,446 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:58:19,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:58:19,446 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:58:19,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:58:17" (3/4) ... [2022-12-13 14:58:19,448 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 14:58:19,481 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe05fe3d-ed32-49b8-b572-2a858dcceec5/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:58:19,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:58:19,482 INFO L158 Benchmark]: Toolchain (without parser) took 2658.65ms. Allocated memory is still 134.2MB. Free memory was 100.8MB in the beginning and 81.5MB in the end (delta: 19.3MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2022-12-13 14:58:19,482 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory was 77.0MB in the beginning and 76.9MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:58:19,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.50ms. Allocated memory is still 134.2MB. Free memory was 100.8MB in the beginning and 82.3MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 14:58:19,483 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.06ms. Allocated memory is still 134.2MB. Free memory was 82.3MB in the beginning and 79.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:58:19,484 INFO L158 Benchmark]: Boogie Preprocessor took 21.54ms. Allocated memory is still 134.2MB. Free memory was 79.4MB in the beginning and 77.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:58:19,484 INFO L158 Benchmark]: RCFGBuilder took 376.95ms. Allocated memory is still 134.2MB. Free memory was 77.3MB in the beginning and 57.9MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 14:58:19,484 INFO L158 Benchmark]: BuchiAutomizer took 1914.61ms. Allocated memory is still 134.2MB. Free memory was 57.9MB in the beginning and 84.7MB in the end (delta: -26.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:58:19,485 INFO L158 Benchmark]: Witness Printer took 35.42ms. Allocated memory is still 134.2MB. Free memory was 84.7MB in the beginning and 81.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:58:19,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory was 77.0MB in the beginning and 76.9MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.50ms. Allocated memory is still 134.2MB. Free memory was 100.8MB in the beginning and 82.3MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.06ms. Allocated memory is still 134.2MB. Free memory was 82.3MB in the beginning and 79.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.54ms. Allocated memory is still 134.2MB. Free memory was 79.4MB in the beginning and 77.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.95ms. Allocated memory is still 134.2MB. Free memory was 77.3MB in the beginning and 57.9MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 1914.61ms. Allocated memory is still 134.2MB. Free memory was 57.9MB in the beginning and 84.7MB in the end (delta: -26.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 35.42ms. Allocated memory is still 134.2MB. Free memory was 84.7MB in the beginning and 81.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 5 locations. The remainder module has 677 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 515 StatesRemovedByMinimization, 2 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, 845 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 845 mSDsluCounter, 1481 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 941 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 540 mSDtfsCounter, 115 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: 906]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L50] int cleanupTimeShifts = 4; [L195] int waterLevel = 1; [L196] int methaneLevelCritical = 0; [L502] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L703] int pumpRunning = 0; [L704] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L315] int retValue_acc ; [L318] retValue_acc = 1 [L319] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L897] int splverifierCounter ; [L898] int tmp ; [L899] int tmp___0 ; [L900] int tmp___1 ; [L901] int tmp___2 ; [L904] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L906] COND TRUE 1 [L908] COND TRUE splverifierCounter < 4 [L914] tmp = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp)) [L924] tmp___0 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___0)) [L934] tmp___2 = __VERIFIER_nondet_int() [L936] COND TRUE \read(tmp___2) [L938] CALL startSystem() [L891] systemActive = 1 [L938] RET startSystem() [L953] CALL timeShift() [L710] COND FALSE !(\read(pumpRunning)) [L717] COND TRUE \read(systemActive) [L719] CALL processEnvironment() [L739] int tmp ; [L742] COND TRUE ! pumpRunning [L744] CALL, EXPR isHighWaterLevel() [L854] int retValue_acc ; [L855] int tmp ; [L856] int tmp___0 ; [L860] CALL, EXPR isHighWaterSensorDry() [L275] int retValue_acc ; [L278] COND TRUE waterLevel < 2 [L279] retValue_acc = 1 [L280] return (retValue_acc); [L860] RET, EXPR isHighWaterSensorDry() [L860] tmp = isHighWaterSensorDry() [L862] COND TRUE \read(tmp) [L863] tmp___0 = 0 [L867] retValue_acc = tmp___0 [L868] return (retValue_acc); [L744] RET, EXPR isHighWaterLevel() [L744] tmp = isHighWaterLevel() [L746] COND FALSE !(\read(tmp)) [L752] FCALL processEnvironment__wrappee__base() [L719] RET processEnvironment() [L725] CALL __utac_acc__Specification3_spec__1() [L159] int tmp ; [L160] int tmp___0 ; [L161] int tmp___1 ; [L165] CALL, EXPR isMethaneLevelCritical() [L234] int retValue_acc ; [L237] retValue_acc = methaneLevelCritical [L238] return (retValue_acc); [L165] RET, EXPR isMethaneLevelCritical() [L165] tmp = isMethaneLevelCritical() [L167] COND FALSE !(\read(tmp)) [L171] CALL, EXPR getWaterLevel() [L266] int retValue_acc ; [L269] retValue_acc = waterLevel [L270] return (retValue_acc); [L171] RET, EXPR getWaterLevel() [L171] tmp___0 = getWaterLevel() [L173] COND FALSE !(tmp___0 == 2) [L725] RET __utac_acc__Specification3_spec__1() [L953] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 906]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L195] int waterLevel = 1; [L196] int methaneLevelCritical = 0; [L502] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L703] int pumpRunning = 0; [L704] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L315] int retValue_acc ; [L318] retValue_acc = 1 [L319] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L897] int splverifierCounter ; [L898] int tmp ; [L899] int tmp___0 ; [L900] int tmp___1 ; [L901] int tmp___2 ; [L904] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L906] COND TRUE 1 [L908] COND TRUE splverifierCounter < 4 [L914] tmp = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp)) [L924] tmp___0 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___0)) [L934] tmp___2 = __VERIFIER_nondet_int() [L936] COND TRUE \read(tmp___2) [L938] CALL startSystem() [L891] systemActive = 1 [L938] RET startSystem() [L953] CALL timeShift() [L710] COND FALSE !(\read(pumpRunning)) [L717] COND TRUE \read(systemActive) [L719] CALL processEnvironment() [L739] int tmp ; [L742] COND TRUE ! pumpRunning [L744] CALL, EXPR isHighWaterLevel() [L854] int retValue_acc ; [L855] int tmp ; [L856] int tmp___0 ; [L860] CALL, EXPR isHighWaterSensorDry() [L275] int retValue_acc ; [L278] COND TRUE waterLevel < 2 [L279] retValue_acc = 1 [L280] return (retValue_acc); [L860] RET, EXPR isHighWaterSensorDry() [L860] tmp = isHighWaterSensorDry() [L862] COND TRUE \read(tmp) [L863] tmp___0 = 0 [L867] retValue_acc = tmp___0 [L868] return (retValue_acc); [L744] RET, EXPR isHighWaterLevel() [L744] tmp = isHighWaterLevel() [L746] COND FALSE !(\read(tmp)) [L752] FCALL processEnvironment__wrappee__base() [L719] RET processEnvironment() [L725] CALL __utac_acc__Specification3_spec__1() [L159] int tmp ; [L160] int tmp___0 ; [L161] int tmp___1 ; [L165] CALL, EXPR isMethaneLevelCritical() [L234] int retValue_acc ; [L237] retValue_acc = methaneLevelCritical [L238] return (retValue_acc); [L165] RET, EXPR isMethaneLevelCritical() [L165] tmp = isMethaneLevelCritical() [L167] COND FALSE !(\read(tmp)) [L171] CALL, EXPR getWaterLevel() [L266] int retValue_acc ; [L269] retValue_acc = waterLevel [L270] return (retValue_acc); [L171] RET, EXPR getWaterLevel() [L171] tmp___0 = getWaterLevel() [L173] COND FALSE !(tmp___0 == 2) [L725] RET __utac_acc__Specification3_spec__1() [L953] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 14:58:19,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe05fe3d-ed32-49b8-b572-2a858dcceec5/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)