./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/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_6ca18189-e682-4c37-b85f-4e321c5ead01/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/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_6ca18189-e682-4c37-b85f-4e321c5ead01/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 ee424d693dfd8c88be1863ebdbdf37ea7e1818258f96fab9b4ff8bf142707b41 --- 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 10:55:48,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 10:55:48,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 10:55:48,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 10:55:48,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 10:55:48,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 10:55:48,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 10:55:48,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 10:55:48,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 10:55:48,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 10:55:48,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 10:55:48,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 10:55:48,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 10:55:48,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 10:55:48,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 10:55:48,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 10:55:48,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 10:55:48,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 10:55:48,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 10:55:48,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 10:55:48,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 10:55:48,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 10:55:48,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 10:55:48,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 10:55:48,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 10:55:48,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 10:55:48,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 10:55:48,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 10:55:48,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 10:55:48,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 10:55:48,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 10:55:48,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 10:55:48,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 10:55:48,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 10:55:48,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 10:55:48,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 10:55:48,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 10:55:48,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 10:55:48,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 10:55:48,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 10:55:48,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 10:55:48,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 10:55:48,106 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 10:55:48,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 10:55:48,106 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 10:55:48,107 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 10:55:48,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 10:55:48,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 10:55:48,108 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 10:55:48,108 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 10:55:48,108 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 10:55:48,108 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 10:55:48,108 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 10:55:48,109 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 10:55:48,109 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 10:55:48,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 10:55:48,109 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 10:55:48,109 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 10:55:48,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 10:55:48,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 10:55:48,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 10:55:48,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 10:55:48,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 10:55:48,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 10:55:48,110 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 10:55:48,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 10:55:48,110 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 10:55:48,111 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 10:55:48,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 10:55:48,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 10:55:48,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 10:55:48,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 10:55:48,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 10:55:48,112 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 10:55:48,113 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_6ca18189-e682-4c37-b85f-4e321c5ead01/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee424d693dfd8c88be1863ebdbdf37ea7e1818258f96fab9b4ff8bf142707b41 [2022-12-13 10:55:48,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 10:55:48,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 10:55:48,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 10:55:48,304 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 10:55:48,305 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 10:55:48,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2022-12-13 10:55:50,860 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 10:55:51,034 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 10:55:51,034 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c [2022-12-13 10:55:51,041 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/bin/uautomizer-uyxdKDjOR8/data/b026a3388/87d500625eb44eb7bf3bdcfb47ff45b8/FLAG92260eb9c [2022-12-13 10:55:51,050 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/bin/uautomizer-uyxdKDjOR8/data/b026a3388/87d500625eb44eb7bf3bdcfb47ff45b8 [2022-12-13 10:55:51,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 10:55:51,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 10:55:51,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 10:55:51,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 10:55:51,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 10:55:51,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:55:51" (1/1) ... [2022-12-13 10:55:51,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea3a1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:51, skipping insertion in model container [2022-12-13 10:55:51,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:55:51" (1/1) ... [2022-12-13 10:55:51,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 10:55:51,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 10:55:51,207 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_6ca18189-e682-4c37-b85f-4e321c5ead01/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c[3777,3790] [2022-12-13 10:55:51,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 10:55:51,271 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 10:55:51,286 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_6ca18189-e682-4c37-b85f-4e321c5ead01/sv-benchmarks/c/product-lines/minepump_spec3_product55.cil.c[3777,3790] [2022-12-13 10:55:51,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 10:55:51,332 INFO L208 MainTranslator]: Completed translation [2022-12-13 10:55:51,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:51 WrapperNode [2022-12-13 10:55:51,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 10:55:51,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 10:55:51,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 10:55:51,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 10:55:51,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:51" (1/1) ... [2022-12-13 10:55:51,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:51" (1/1) ... [2022-12-13 10:55:51,376 INFO L138 Inliner]: procedures = 57, calls = 105, calls flagged for inlining = 58, calls inlined = 142, statements flattened = 985 [2022-12-13 10:55:51,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 10:55:51,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 10:55:51,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 10:55:51,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 10:55:51,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:51" (1/1) ... [2022-12-13 10:55:51,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:51" (1/1) ... [2022-12-13 10:55:51,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:51" (1/1) ... [2022-12-13 10:55:51,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:51" (1/1) ... [2022-12-13 10:55:51,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:51" (1/1) ... [2022-12-13 10:55:51,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:51" (1/1) ... [2022-12-13 10:55:51,401 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:51" (1/1) ... [2022-12-13 10:55:51,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:51" (1/1) ... [2022-12-13 10:55:51,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 10:55:51,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 10:55:51,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 10:55:51,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 10:55:51,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:51" (1/1) ... [2022-12-13 10:55:51,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 10:55:51,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 10:55:51,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 10:55:51,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 10:55:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 10:55:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 10:55:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 10:55:51,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 10:55:51,549 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 10:55:51,551 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 10:55:52,020 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 10:55:52,030 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 10:55:52,030 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 10:55:52,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:55:52 BoogieIcfgContainer [2022-12-13 10:55:52,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 10:55:52,033 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 10:55:52,033 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 10:55:52,037 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 10:55:52,038 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 10:55:52,038 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 10:55:51" (1/3) ... [2022-12-13 10:55:52,039 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18e9b92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 10:55:52, skipping insertion in model container [2022-12-13 10:55:52,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 10:55:52,039 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:51" (2/3) ... [2022-12-13 10:55:52,039 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18e9b92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 10:55:52, skipping insertion in model container [2022-12-13 10:55:52,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 10:55:52,039 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:55:52" (3/3) ... [2022-12-13 10:55:52,041 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2022-12-13 10:55:52,091 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 10:55:52,091 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 10:55:52,091 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 10:55:52,091 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 10:55:52,091 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 10:55:52,092 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 10:55:52,092 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 10:55:52,092 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 10:55:52,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 280 states, 279 states have (on average 1.3727598566308243) internal successors, (383), 279 states have internal predecessors, (383), 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 10:55:52,116 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2022-12-13 10:55:52,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 10:55:52,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 10:55:52,122 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:55:52,122 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 10:55:52,122 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 10:55:52,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 280 states, 279 states have (on average 1.3727598566308243) internal successors, (383), 279 states have internal predecessors, (383), 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 10:55:52,128 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2022-12-13 10:55:52,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 10:55:52,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 10:55:52,129 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:55:52,129 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 10:55:52,133 INFO L748 eck$LassoCheckResult]: Stem: 170#$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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 181#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~9#1, main_~tmp~3#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 22#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 254#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 95#valid_product_returnLabel#1true main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 168#L659true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 71#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 197#L960-2true [2022-12-13 10:55:52,133 INFO L750 eck$LassoCheckResult]: Loop: 197#L960-2true assume !false; 171#L961true assume test_~splverifierCounter~0#1 < 4; 23#L962true test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 14#L970true assume !(0 != test_~tmp~10#1); 201#L970-2true test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 242#L980true assume !(0 != test_~tmp___0~3#1); 132#L980-2true test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 105#L990true assume 0 != test_~tmp___2~0#1; 208#L996-2true assume { :begin_inline_timeShift } true; 88#L685true assume !(0 != ~pumpRunning~0); 279#L685-2true assume !(0 != ~systemActive~0); 186#L692-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 220#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 84#L925true assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; 134#L931-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 210#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 197#L960-2true [2022-12-13 10:55:52,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:52,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 10:55:52,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:52,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763625516] [2022-12-13 10:55:52,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:52,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:52,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:55:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:52,228 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:55:52,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:52,230 INFO L85 PathProgramCache]: Analyzing trace with hash -397659306, now seen corresponding path program 1 times [2022-12-13 10:55:52,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:52,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787429949] [2022-12-13 10:55:52,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:52,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:52,236 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:55:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:52,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:55:52,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:52,242 INFO L85 PathProgramCache]: Analyzing trace with hash 957759770, now seen corresponding path program 1 times [2022-12-13 10:55:52,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:52,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070370538] [2022-12-13 10:55:52,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:52,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:55:52,369 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 10:55:52,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:55:52,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070370538] [2022-12-13 10:55:52,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070370538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:55:52,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:55:52,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 10:55:52,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189045690] [2022-12-13 10:55:52,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:55:52,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:55:52,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 10:55:52,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 10:55:52,497 INFO L87 Difference]: Start difference. First operand has 280 states, 279 states have (on average 1.3727598566308243) internal successors, (383), 279 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:52,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:55:52,655 INFO L93 Difference]: Finished difference Result 617 states and 824 transitions. [2022-12-13 10:55:52,656 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 617 states and 824 transitions. [2022-12-13 10:55:52,666 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 403 [2022-12-13 10:55:52,674 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 617 states to 587 states and 794 transitions. [2022-12-13 10:55:52,675 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 587 [2022-12-13 10:55:52,677 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 587 [2022-12-13 10:55:52,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 587 states and 794 transitions. [2022-12-13 10:55:52,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 10:55:52,680 INFO L218 hiAutomatonCegarLoop]: Abstraction has 587 states and 794 transitions. [2022-12-13 10:55:52,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states and 794 transitions. [2022-12-13 10:55:52,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 325. [2022-12-13 10:55:52,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 325 states have (on average 1.3507692307692307) internal successors, (439), 324 states have internal predecessors, (439), 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 10:55:52,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 439 transitions. [2022-12-13 10:55:52,716 INFO L240 hiAutomatonCegarLoop]: Abstraction has 325 states and 439 transitions. [2022-12-13 10:55:52,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 10:55:52,720 INFO L428 stractBuchiCegarLoop]: Abstraction has 325 states and 439 transitions. [2022-12-13 10:55:52,721 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 10:55:52,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 325 states and 439 transitions. [2022-12-13 10:55:52,724 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 224 [2022-12-13 10:55:52,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 10:55:52,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 10:55:52,725 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:55:52,725 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] [2022-12-13 10:55:52,725 INFO L748 eck$LassoCheckResult]: Stem: 1148#$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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1149#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~9#1, main_~tmp~3#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 959#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 960#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1077#valid_product_returnLabel#1 main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 1078#L659 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1042#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1043#L960-2 [2022-12-13 10:55:52,725 INFO L750 eck$LassoCheckResult]: Loop: 1043#L960-2 assume !false; 1150#L961 assume test_~splverifierCounter~0#1 < 4; 961#L962 test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 941#L970 assume !(0 != test_~tmp~10#1); 943#L970-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 1169#L980 assume !(0 != test_~tmp___0~3#1); 1119#L980-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 1088#L990 assume 0 != test_~tmp___2~0#1; 930#L996-2 assume { :begin_inline_timeShift } true; 1067#L685 assume !(0 != ~pumpRunning~0); 987#L685-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 996#L769 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret37#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 997#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret37#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret37#1;havoc isMethaneAlarm_#t~ret37#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; 1181#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret36#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret36#1;havoc processEnvironment_#t~ret36#1; 1165#L773 assume 0 != processEnvironment_~tmp~6#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1035#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 1036#L769-1 assume { :end_inline_processEnvironment } true; 1159#L692-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1160#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 1059#L925 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; 923#L931-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1122#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1043#L960-2 [2022-12-13 10:55:52,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:52,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 10:55:52,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:52,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630088372] [2022-12-13 10:55:52,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:52,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:52,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:55:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:52,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:55:52,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:52,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1505593087, now seen corresponding path program 1 times [2022-12-13 10:55:52,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:52,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167159654] [2022-12-13 10:55:52,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:52,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:55:52,764 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 10:55:52,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:55:52,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167159654] [2022-12-13 10:55:52,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167159654] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:55:52,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:55:52,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:55:52,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982934927] [2022-12-13 10:55:52,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:55:52,766 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 10:55:52,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:55:52,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:55:52,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:55:52,767 INFO L87 Difference]: Start difference. First operand 325 states and 439 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 10:55:52,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:55:52,843 INFO L93 Difference]: Finished difference Result 336 states and 430 transitions. [2022-12-13 10:55:52,843 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 336 states and 430 transitions. [2022-12-13 10:55:52,845 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 237 [2022-12-13 10:55:52,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 336 states to 336 states and 430 transitions. [2022-12-13 10:55:52,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 336 [2022-12-13 10:55:52,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 336 [2022-12-13 10:55:52,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 336 states and 430 transitions. [2022-12-13 10:55:52,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 10:55:52,850 INFO L218 hiAutomatonCegarLoop]: Abstraction has 336 states and 430 transitions. [2022-12-13 10:55:52,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states and 430 transitions. [2022-12-13 10:55:52,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2022-12-13 10:55:52,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 336 states have (on average 1.2797619047619047) internal successors, (430), 335 states have internal predecessors, (430), 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 10:55:52,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 430 transitions. [2022-12-13 10:55:52,862 INFO L240 hiAutomatonCegarLoop]: Abstraction has 336 states and 430 transitions. [2022-12-13 10:55:52,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:55:52,863 INFO L428 stractBuchiCegarLoop]: Abstraction has 336 states and 430 transitions. [2022-12-13 10:55:52,863 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 10:55:52,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 336 states and 430 transitions. [2022-12-13 10:55:52,866 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 237 [2022-12-13 10:55:52,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 10:55:52,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 10:55:52,866 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:55:52,867 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:55:52,867 INFO L748 eck$LassoCheckResult]: Stem: 1775#$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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1776#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~9#1, main_~tmp~3#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1611#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1612#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1712#valid_product_returnLabel#1 main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 1713#L659 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1682#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1683#L960-2 [2022-12-13 10:55:52,867 INFO L750 eck$LassoCheckResult]: Loop: 1683#L960-2 assume !false; 1777#L961 assume test_~splverifierCounter~0#1 < 4; 1778#L962 test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1895#L970 assume !(0 != test_~tmp~10#1); 1893#L970-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 1807#L980 assume !(0 != test_~tmp___0~3#1); 1750#L980-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 1724#L990 assume 0 != test_~tmp___2~0#1; 1593#L996-2 assume { :begin_inline_timeShift } true; 1704#L685 assume !(0 != ~pumpRunning~0); 1705#L685-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1643#L769 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 1644#L743-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1681#L717-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 1736#L179-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 1764#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 1759#L871-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1621#L871-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1622#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; 1747#L721-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1734#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1735#L717-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1758#L743-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1678#L769-1 assume { :end_inline_processEnvironment } true; 1787#L692-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1788#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 1797#L925 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; 1881#L931-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1794#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1683#L960-2 [2022-12-13 10:55:52,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:52,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 10:55:52,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:52,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886803919] [2022-12-13 10:55:52,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:52,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:52,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:55:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:52,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:55:52,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:52,884 INFO L85 PathProgramCache]: Analyzing trace with hash -435650745, now seen corresponding path program 1 times [2022-12-13 10:55:52,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:52,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744592032] [2022-12-13 10:55:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:52,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:52,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:55:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:52,901 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:55:52,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:52,901 INFO L85 PathProgramCache]: Analyzing trace with hash -561385469, now seen corresponding path program 1 times [2022-12-13 10:55:52,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:52,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295843248] [2022-12-13 10:55:52,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:52,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:55:52,983 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 10:55:52,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:55:52,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295843248] [2022-12-13 10:55:52,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295843248] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:55:52,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:55:52,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 10:55:52,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534594902] [2022-12-13 10:55:52,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:55:53,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:55:53,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 10:55:53,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 10:55:53,171 INFO L87 Difference]: Start difference. First operand 336 states and 430 transitions. cyclomatic complexity: 97 Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 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 10:55:53,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:55:53,274 INFO L93 Difference]: Finished difference Result 1155 states and 1467 transitions. [2022-12-13 10:55:53,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1155 states and 1467 transitions. [2022-12-13 10:55:53,282 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 859 [2022-12-13 10:55:53,285 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1155 states to 1155 states and 1467 transitions. [2022-12-13 10:55:53,286 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1155 [2022-12-13 10:55:53,286 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1155 [2022-12-13 10:55:53,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1155 states and 1467 transitions. [2022-12-13 10:55:53,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 10:55:53,288 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1155 states and 1467 transitions. [2022-12-13 10:55:53,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states and 1467 transitions. [2022-12-13 10:55:53,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 665. [2022-12-13 10:55:53,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 665 states have (on average 1.2646616541353384) internal successors, (841), 664 states have internal predecessors, (841), 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 10:55:53,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 841 transitions. [2022-12-13 10:55:53,302 INFO L240 hiAutomatonCegarLoop]: Abstraction has 665 states and 841 transitions. [2022-12-13 10:55:53,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 10:55:53,303 INFO L428 stractBuchiCegarLoop]: Abstraction has 665 states and 841 transitions. [2022-12-13 10:55:53,303 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 10:55:53,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 665 states and 841 transitions. [2022-12-13 10:55:53,305 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 474 [2022-12-13 10:55:53,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 10:55:53,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 10:55:53,306 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:55:53,306 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:55:53,306 INFO L748 eck$LassoCheckResult]: Stem: 3291#$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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 3292#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~9#1, main_~tmp~3#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 3120#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3121#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 3226#valid_product_returnLabel#1 main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 3227#L659 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 3191#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~10#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~10#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3192#L960-2 [2022-12-13 10:55:53,306 INFO L750 eck$LassoCheckResult]: Loop: 3192#L960-2 assume !false; 3651#L961 assume test_~splverifierCounter~0#1 < 4; 3652#L962 test_~tmp~10#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 3731#L970 assume !(0 != test_~tmp~10#1); 3729#L970-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 3728#L980 assume !(0 != test_~tmp___0~3#1); 3725#L980-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 3723#L990 assume 0 != test_~tmp___2~0#1; 3706#L996-2 assume { :begin_inline_timeShift } true; 3666#L685 assume !(0 != ~pumpRunning~0); 3661#L685-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 3421#L769 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 3420#L743-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 3419#L717-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 3416#L179-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 3415#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 3414#L871-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3130#L871-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 3131#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; 3258#L721-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3244#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 3245#L717-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3270#L743-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3187#L769-1 assume { :end_inline_processEnvironment } true; 3308#L692-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 3660#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 3659#L925 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~9#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 3658#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret49#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 3656#L931 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 3654#L931-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3653#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3192#L960-2 [2022-12-13 10:55:53,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:53,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-12-13 10:55:53,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:53,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369761768] [2022-12-13 10:55:53,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:53,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:53,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:55:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:53,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:55:53,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:53,316 INFO L85 PathProgramCache]: Analyzing trace with hash -2047280582, now seen corresponding path program 1 times [2022-12-13 10:55:53,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:53,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303183291] [2022-12-13 10:55:53,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:53,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:53,321 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:55:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:53,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:55:53,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:53,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1675701238, now seen corresponding path program 1 times [2022-12-13 10:55:53,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:53,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95108745] [2022-12-13 10:55:53,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:53,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:53,334 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:55:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:53,342 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 10:55:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:54,155 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 10:55:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 10:55:54,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 10:55:54 BoogieIcfgContainer [2022-12-13 10:55:54,195 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 10:55:54,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 10:55:54,196 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 10:55:54,196 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 10:55:54,196 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:55:52" (3/4) ... [2022-12-13 10:55:54,199 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 10:55:54,247 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 10:55:54,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 10:55:54,248 INFO L158 Benchmark]: Toolchain (without parser) took 3195.00ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 84.0MB in the beginning and 59.3MB in the end (delta: 24.7MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2022-12-13 10:55:54,248 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory was 89.9MB in the beginning and 89.9MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 10:55:54,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.94ms. Allocated memory is still 125.8MB. Free memory was 83.6MB in the beginning and 64.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 10:55:54,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.11ms. Allocated memory is still 125.8MB. Free memory was 64.7MB in the beginning and 60.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 10:55:54,249 INFO L158 Benchmark]: Boogie Preprocessor took 29.19ms. Allocated memory is still 125.8MB. Free memory was 60.5MB in the beginning and 57.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 10:55:54,250 INFO L158 Benchmark]: RCFGBuilder took 626.13ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 57.1MB in the beginning and 97.9MB in the end (delta: -40.8MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-12-13 10:55:54,250 INFO L158 Benchmark]: BuchiAutomizer took 2161.80ms. Allocated memory is still 157.3MB. Free memory was 97.9MB in the beginning and 62.4MB in the end (delta: 35.5MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2022-12-13 10:55:54,250 INFO L158 Benchmark]: Witness Printer took 51.95ms. Allocated memory is still 157.3MB. Free memory was 62.4MB in the beginning and 59.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 10:55:54,252 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory was 89.9MB in the beginning and 89.9MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.94ms. Allocated memory is still 125.8MB. Free memory was 83.6MB in the beginning and 64.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.11ms. Allocated memory is still 125.8MB. Free memory was 64.7MB in the beginning and 60.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.19ms. Allocated memory is still 125.8MB. Free memory was 60.5MB in the beginning and 57.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 626.13ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 57.1MB in the beginning and 97.9MB in the end (delta: -40.8MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 2161.80ms. Allocated memory is still 157.3MB. Free memory was 97.9MB in the beginning and 62.4MB in the end (delta: 35.5MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. * Witness Printer took 51.95ms. Allocated memory is still 157.3MB. Free memory was 62.4MB in the beginning and 59.3MB 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 6 locations. The remainder module has 665 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 752 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, 2777 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2777 mSDsluCounter, 4026 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2935 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 1091 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 960]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L574] int cleanupTimeShifts = 4; [L677] int pumpRunning = 0; [L678] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L650] int retValue_acc ; [L651] int tmp ; [L655] FCALL select_helpers() [L656] FCALL select_features() [L657] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L657] RET, EXPR valid_product() [L657] tmp = valid_product() [L659] COND TRUE \read(tmp) [L661] FCALL setup() [L662] CALL runTest() [L644] CALL test() [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L960] COND TRUE 1 [L962] COND TRUE splverifierCounter < 4 [L968] tmp = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp)) [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___2) [L1005] CALL timeShift() [L685] COND FALSE !(\read(pumpRunning)) [L692] COND TRUE \read(systemActive) [L694] CALL processEnvironment() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__lowWaterSensor() [L740] int tmp ; [L743] COND FALSE !(\read(pumpRunning)) [L758] CALL processEnvironment__wrappee__highWaterSensor() [L714] int tmp ; [L717] COND TRUE ! pumpRunning [L719] CALL, EXPR isHighWaterLevel() [L863] int retValue_acc ; [L864] int tmp ; [L865] int tmp___0 ; [L869] CALL, EXPR isHighWaterSensorDry() [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L869] RET, EXPR isHighWaterSensorDry() [L869] tmp = isHighWaterSensorDry() [L871] COND TRUE \read(tmp) [L872] tmp___0 = 0 [L876] retValue_acc = tmp___0 [L877] return (retValue_acc); [L719] RET, EXPR isHighWaterLevel() [L719] tmp = isHighWaterLevel() [L721] COND FALSE !(\read(tmp)) [L727] FCALL processEnvironment__wrappee__base() [L758] RET processEnvironment__wrappee__highWaterSensor() [L784] RET processEnvironment__wrappee__lowWaterSensor() [L694] RET processEnvironment() [L700] CALL __utac_acc__Specification3_spec__1() [L917] int tmp ; [L918] int tmp___0 ; [L919] int tmp___1 ; [L923] CALL, EXPR isMethaneLevelCritical() [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L923] RET, EXPR isMethaneLevelCritical() [L923] tmp = isMethaneLevelCritical() [L925] COND FALSE !(\read(tmp)) [L929] CALL, EXPR getWaterLevel() [L167] int retValue_acc ; [L170] retValue_acc = waterLevel [L171] return (retValue_acc); [L929] RET, EXPR getWaterLevel() [L929] tmp___0 = getWaterLevel() [L931] COND FALSE !(tmp___0 == 2) [L700] RET __utac_acc__Specification3_spec__1() [L1005] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 960]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L574] int cleanupTimeShifts = 4; [L677] int pumpRunning = 0; [L678] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L650] int retValue_acc ; [L651] int tmp ; [L655] FCALL select_helpers() [L656] FCALL select_features() [L657] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L657] RET, EXPR valid_product() [L657] tmp = valid_product() [L659] COND TRUE \read(tmp) [L661] FCALL setup() [L662] CALL runTest() [L644] CALL test() [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L960] COND TRUE 1 [L962] COND TRUE splverifierCounter < 4 [L968] tmp = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp)) [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___2) [L1005] CALL timeShift() [L685] COND FALSE !(\read(pumpRunning)) [L692] COND TRUE \read(systemActive) [L694] CALL processEnvironment() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__lowWaterSensor() [L740] int tmp ; [L743] COND FALSE !(\read(pumpRunning)) [L758] CALL processEnvironment__wrappee__highWaterSensor() [L714] int tmp ; [L717] COND TRUE ! pumpRunning [L719] CALL, EXPR isHighWaterLevel() [L863] int retValue_acc ; [L864] int tmp ; [L865] int tmp___0 ; [L869] CALL, EXPR isHighWaterSensorDry() [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L869] RET, EXPR isHighWaterSensorDry() [L869] tmp = isHighWaterSensorDry() [L871] COND TRUE \read(tmp) [L872] tmp___0 = 0 [L876] retValue_acc = tmp___0 [L877] return (retValue_acc); [L719] RET, EXPR isHighWaterLevel() [L719] tmp = isHighWaterLevel() [L721] COND FALSE !(\read(tmp)) [L727] FCALL processEnvironment__wrappee__base() [L758] RET processEnvironment__wrappee__highWaterSensor() [L784] RET processEnvironment__wrappee__lowWaterSensor() [L694] RET processEnvironment() [L700] CALL __utac_acc__Specification3_spec__1() [L917] int tmp ; [L918] int tmp___0 ; [L919] int tmp___1 ; [L923] CALL, EXPR isMethaneLevelCritical() [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L923] RET, EXPR isMethaneLevelCritical() [L923] tmp = isMethaneLevelCritical() [L925] COND FALSE !(\read(tmp)) [L929] CALL, EXPR getWaterLevel() [L167] int retValue_acc ; [L170] retValue_acc = waterLevel [L171] return (retValue_acc); [L929] RET, EXPR getWaterLevel() [L929] tmp___0 = getWaterLevel() [L931] COND FALSE !(tmp___0 == 2) [L700] RET __utac_acc__Specification3_spec__1() [L1005] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 10:55:54,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca18189-e682-4c37-b85f-4e321c5ead01/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)