./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:59:55,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:59:55,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:59:55,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:59:55,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:59:55,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:59:55,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:59:55,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:59:55,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:59:55,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:59:55,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:59:55,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:59:55,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:59:55,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:59:55,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:59:55,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:59:55,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:59:55,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:59:55,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:59:55,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:59:55,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:59:55,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:59:55,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:59:55,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:59:55,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:59:55,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:59:55,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:59:55,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:59:55,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:59:55,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:59:55,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:59:55,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:59:55,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:59:55,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:59:55,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:59:55,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:59:55,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:59:55,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:59:55,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:59:55,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:59:55,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:59:55,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-25 17:59:55,627 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:59:55,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:59:55,628 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:59:55,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:59:55,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:59:55,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:59:55,630 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:59:55,630 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 17:59:55,630 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 17:59:55,631 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 17:59:55,631 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 17:59:55,631 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 17:59:55,631 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 17:59:55,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:59:55,632 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:59:55,632 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:59:55,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:59:55,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:59:55,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:59:55,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 17:59:55,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 17:59:55,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 17:59:55,634 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:59:55,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:59:55,634 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 17:59:55,635 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:59:55,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 17:59:55,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:59:55,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:59:55,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:59:55,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:59:55,637 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 17:59:55,637 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_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 [2022-11-25 17:59:55,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:59:55,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:59:55,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:59:55,986 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:59:55,987 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:59:55,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2022-11-25 17:59:59,225 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:59:59,571 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:59:59,572 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2022-11-25 17:59:59,585 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/data/65dcd5549/5e799ed2e825400a9fd1b85cb8a2abb4/FLAG52c4d7d12 [2022-11-25 17:59:59,602 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/data/65dcd5549/5e799ed2e825400a9fd1b85cb8a2abb4 [2022-11-25 17:59:59,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:59:59,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:59:59,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:59:59,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:59:59,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:59:59,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:59:59" (1/1) ... [2022-11-25 17:59:59,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb0c563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:59, skipping insertion in model container [2022-11-25 17:59:59,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:59:59" (1/1) ... [2022-11-25 17:59:59,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:59:59,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:59:59,889 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_511de19b-7778-465f-8422-cd9c162560de/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c[1605,1618] [2022-11-25 18:00:00,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:00:00,033 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:00:00,061 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_511de19b-7778-465f-8422-cd9c162560de/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c[1605,1618] [2022-11-25 18:00:00,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:00:00,188 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:00:00,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:00 WrapperNode [2022-11-25 18:00:00,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:00:00,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:00:00,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:00:00,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:00:00,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:00" (1/1) ... [2022-11-25 18:00:00,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:00" (1/1) ... [2022-11-25 18:00:00,299 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 57, calls inlined = 173, statements flattened = 1197 [2022-11-25 18:00:00,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:00:00,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:00:00,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:00:00,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:00:00,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:00" (1/1) ... [2022-11-25 18:00:00,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:00" (1/1) ... [2022-11-25 18:00:00,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:00" (1/1) ... [2022-11-25 18:00:00,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:00" (1/1) ... [2022-11-25 18:00:00,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:00" (1/1) ... [2022-11-25 18:00:00,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:00" (1/1) ... [2022-11-25 18:00:00,353 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:00" (1/1) ... [2022-11-25 18:00:00,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:00" (1/1) ... [2022-11-25 18:00:00,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:00:00,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:00:00,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:00:00,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:00:00,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:00" (1/1) ... [2022-11-25 18:00:00,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 18:00:00,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:00:00,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 18:00:00,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 18:00:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:00:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:00:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:00:00,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:00:00,559 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:00:00,561 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:00:01,449 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:00:01,461 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:00:01,461 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 18:00:01,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:01 BoogieIcfgContainer [2022-11-25 18:00:01,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:00:01,466 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 18:00:01,466 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 18:00:01,471 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 18:00:01,472 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:00:01,472 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 05:59:59" (1/3) ... [2022-11-25 18:00:01,473 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25e750dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 06:00:01, skipping insertion in model container [2022-11-25 18:00:01,473 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:00:01,473 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:00" (2/3) ... [2022-11-25 18:00:01,474 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25e750dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 06:00:01, skipping insertion in model container [2022-11-25 18:00:01,474 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 18:00:01,474 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:01" (3/3) ... [2022-11-25 18:00:01,476 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2022-11-25 18:00:01,545 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 18:00:01,546 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 18:00:01,546 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 18:00:01,546 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 18:00:01,546 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 18:00:01,547 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 18:00:01,547 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 18:00:01,547 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 18:00:01,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 318 states, 317 states have (on average 1.3533123028391167) internal successors, (429), 317 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:01,590 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 208 [2022-11-25 18:00:01,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:00:01,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:00:01,604 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:01,605 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:01,605 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 18:00:01,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 318 states, 317 states have (on average 1.3533123028391167) internal successors, (429), 317 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:01,627 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 208 [2022-11-25 18:00:01,628 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:00:01,628 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:00:01,629 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:01,629 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:01,635 INFO L748 eck$LassoCheckResult]: Stem: 298#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 195#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 133#L84true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 241#L77true 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; 126#L92true main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 290#L994true assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 242#L971true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 281#L361-2true [2022-11-25 18:00:01,636 INFO L750 eck$LassoCheckResult]: Loop: 281#L361-2true assume !false; 145#L362true assume test_~splverifierCounter~0#1 < 4; 152#L363true test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 229#L371true assume !(0 != test_~tmp~6#1); 201#L371-2true test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 83#L381true assume !(0 != test_~tmp___0~2#1); 95#L381-2true test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 101#L391true assume 0 != test_~tmp___2~0#1; 170#L397-2true assume { :begin_inline_timeShift } true; 70#L115true assume !(0 != ~pumpRunning~0); 223#L115-2true assume !(0 != ~systemActive~0); 48#L122-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 296#L492true __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 200#L528true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 56#L528-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 310#L132true assume { :end_inline_timeShift } true; 281#L361-2true [2022-11-25 18:00:01,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:01,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-11-25 18:00:01,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:01,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518021507] [2022-11-25 18:00:01,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:01,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:00:01,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:00:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:00:01,870 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:00:01,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:01,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1828258692, now seen corresponding path program 1 times [2022-11-25 18:00:01,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:01,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231473659] [2022-11-25 18:00:01,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:01,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:00:01,900 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:00:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:00:01,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:00:01,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:01,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1111289528, now seen corresponding path program 1 times [2022-11-25 18:00:01,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:01,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671655298] [2022-11-25 18:00:01,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:01,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:02,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:02,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:02,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671655298] [2022-11-25 18:00:02,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671655298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:02,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:02,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:00:02,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134200747] [2022-11-25 18:00:02,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:02,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:02,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:00:02,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:00:02,527 INFO L87 Difference]: Start difference. First operand has 318 states, 317 states have (on average 1.3533123028391167) internal successors, (429), 317 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:02,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:00:02,631 INFO L93 Difference]: Finished difference Result 315 states and 415 transitions. [2022-11-25 18:00:02,633 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 315 states and 415 transitions. [2022-11-25 18:00:02,643 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2022-11-25 18:00:02,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 315 states to 305 states and 405 transitions. [2022-11-25 18:00:02,660 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 305 [2022-11-25 18:00:02,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 305 [2022-11-25 18:00:02,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 305 states and 405 transitions. [2022-11-25 18:00:02,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:02,670 INFO L218 hiAutomatonCegarLoop]: Abstraction has 305 states and 405 transitions. [2022-11-25 18:00:02,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states and 405 transitions. [2022-11-25 18:00:02,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2022-11-25 18:00:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 305 states have (on average 1.3278688524590163) internal successors, (405), 304 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 405 transitions. [2022-11-25 18:00:02,735 INFO L240 hiAutomatonCegarLoop]: Abstraction has 305 states and 405 transitions. [2022-11-25 18:00:02,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:00:02,741 INFO L428 stractBuchiCegarLoop]: Abstraction has 305 states and 405 transitions. [2022-11-25 18:00:02,741 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-25 18:00:02,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 305 states and 405 transitions. [2022-11-25 18:00:02,744 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2022-11-25 18:00:02,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:00:02,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:00:02,745 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:02,745 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] [2022-11-25 18:00:02,746 INFO L748 eck$LassoCheckResult]: Stem: 954#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 920#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 873#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 874#L77 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; 864#L92 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 865#L994 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 942#L971 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 943#L361-2 [2022-11-25 18:00:02,746 INFO L750 eck$LassoCheckResult]: Loop: 943#L361-2 assume !false; 881#L362 assume test_~splverifierCounter~0#1 < 4; 882#L363 test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 887#L371 assume !(0 != test_~tmp~6#1); 915#L371-2 test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 805#L381 assume !(0 != test_~tmp___0~2#1); 807#L381-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 823#L391 assume 0 != test_~tmp___2~0#1; 830#L397-2 assume { :begin_inline_timeShift } true; 785#L115 assume !(0 != ~pumpRunning~0); 786#L115-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 927#L199 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 788#L460 isMethaneAlarm_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret9#1;havoc isMethaneAlarm_#t~ret9#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; 789#L260 processEnvironment_#t~ret7#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret7#1;havoc processEnvironment_#t~ret7#1; 707#L203 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 708#L250 assume { :end_inline_deactivatePump } true; 868#L199-1 assume { :end_inline_processEnvironment } true; 747#L122-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 748#L492 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 922#L528 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 762#L528-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 763#L132 assume { :end_inline_timeShift } true; 943#L361-2 [2022-11-25 18:00:02,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:02,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-11-25 18:00:02,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:02,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026829860] [2022-11-25 18:00:02,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:02,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:00:02,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:00:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:00:02,786 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:00:02,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:02,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1370684173, now seen corresponding path program 1 times [2022-11-25 18:00:02,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:02,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733452333] [2022-11-25 18:00:02,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:02,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:02,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:02,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733452333] [2022-11-25 18:00:02,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733452333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:02,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:02,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:00:02,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090171695] [2022-11-25 18:00:02,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:02,835 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-25 18:00:02,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:02,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:00:02,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:00:02,837 INFO L87 Difference]: Start difference. First operand 305 states and 405 transitions. cyclomatic complexity: 102 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) [2022-11-25 18:00:02,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:00:02,978 INFO L93 Difference]: Finished difference Result 312 states and 392 transitions. [2022-11-25 18:00:02,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 312 states and 392 transitions. [2022-11-25 18:00:02,981 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2022-11-25 18:00:02,983 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 312 states to 312 states and 392 transitions. [2022-11-25 18:00:02,998 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 312 [2022-11-25 18:00:02,999 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 312 [2022-11-25 18:00:02,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 312 states and 392 transitions. [2022-11-25 18:00:03,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:03,000 INFO L218 hiAutomatonCegarLoop]: Abstraction has 312 states and 392 transitions. [2022-11-25 18:00:03,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states and 392 transitions. [2022-11-25 18:00:03,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2022-11-25 18:00:03,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 312 states have (on average 1.2564102564102564) internal successors, (392), 311 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 392 transitions. [2022-11-25 18:00:03,029 INFO L240 hiAutomatonCegarLoop]: Abstraction has 312 states and 392 transitions. [2022-11-25 18:00:03,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:00:03,030 INFO L428 stractBuchiCegarLoop]: Abstraction has 312 states and 392 transitions. [2022-11-25 18:00:03,031 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-25 18:00:03,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 312 states and 392 transitions. [2022-11-25 18:00:03,033 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2022-11-25 18:00:03,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 18:00:03,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 18:00:03,034 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:03,034 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:03,035 INFO L748 eck$LassoCheckResult]: Stem: 1523#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1490#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~11#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~11#1;assume { :begin_inline_select_helpers } true; 1443#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1444#L77 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; 1439#L92 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~11#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 1440#L994 assume 0 != main_~tmp~11#1;assume { :begin_inline_setup } true; 1511#L971 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1512#L361-2 [2022-11-25 18:00:03,035 INFO L750 eck$LassoCheckResult]: Loop: 1512#L361-2 assume !false; 1451#L362 assume test_~splverifierCounter~0#1 < 4; 1452#L363 test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1457#L371 assume !(0 != test_~tmp~6#1); 1483#L371-2 test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1397#L381 assume !(0 != test_~tmp___0~2#1); 1399#L381-2 test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1409#L391 assume 0 != test_~tmp___2~0#1; 1415#L397-2 assume { :begin_inline_timeShift } true; 1378#L115 assume !(0 != ~pumpRunning~0); 1379#L115-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1498#L199 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1499#L173-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1331#L147-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1332#L500-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1481#L505-3 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 1476#L318-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1458#L318-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1344#L324-3 processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; 1345#L151-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1427#L139-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1428#L147-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1485#L173-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1441#L199-1 assume { :end_inline_processEnvironment } true; 1346#L122-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 1347#L492 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 1493#L528 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1); 1358#L528-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1359#L132 assume { :end_inline_timeShift } true; 1512#L361-2 [2022-11-25 18:00:03,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:03,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-11-25 18:00:03,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:03,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981899285] [2022-11-25 18:00:03,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:03,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:00:03,048 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:00:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:00:03,077 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:00:03,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:03,078 INFO L85 PathProgramCache]: Analyzing trace with hash -2054199498, now seen corresponding path program 1 times [2022-11-25 18:00:03,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:03,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316912197] [2022-11-25 18:00:03,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:03,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:00:03,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:00:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:00:03,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:00:03,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:03,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2115033074, now seen corresponding path program 1 times [2022-11-25 18:00:03,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:03,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172753560] [2022-11-25 18:00:03,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:03,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:00:03,138 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:00:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:00:03,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:00:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:00:04,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:00:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:00:04,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 06:00:04 BoogieIcfgContainer [2022-11-25 18:00:04,721 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 18:00:04,722 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:00:04,722 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:00:04,722 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:00:04,723 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:01" (3/4) ... [2022-11-25 18:00:04,726 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-25 18:00:04,816 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:00:04,816 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:00:04,817 INFO L158 Benchmark]: Toolchain (without parser) took 5210.72ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 132.9MB in the beginning and 96.2MB in the end (delta: 36.7MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. [2022-11-25 18:00:04,817 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory was 99.4MB in the beginning and 99.4MB in the end (delta: 78.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:00:04,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 581.36ms. Allocated memory is still 165.7MB. Free memory was 132.9MB in the beginning and 127.2MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 18:00:04,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.47ms. Allocated memory is still 165.7MB. Free memory was 127.2MB in the beginning and 121.7MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 18:00:04,818 INFO L158 Benchmark]: Boogie Preprocessor took 61.21ms. Allocated memory is still 165.7MB. Free memory was 121.7MB in the beginning and 118.4MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:00:04,819 INFO L158 Benchmark]: RCFGBuilder took 1101.28ms. Allocated memory is still 165.7MB. Free memory was 118.4MB in the beginning and 79.8MB in the end (delta: 38.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-25 18:00:04,819 INFO L158 Benchmark]: BuchiAutomizer took 3254.95ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 79.0MB in the beginning and 99.4MB in the end (delta: -20.4MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-11-25 18:00:04,820 INFO L158 Benchmark]: Witness Printer took 94.94ms. Allocated memory is still 199.2MB. Free memory was 99.4MB in the beginning and 96.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:00:04,822 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory was 99.4MB in the beginning and 99.4MB in the end (delta: 78.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 581.36ms. Allocated memory is still 165.7MB. Free memory was 132.9MB in the beginning and 127.2MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.47ms. Allocated memory is still 165.7MB. Free memory was 127.2MB in the beginning and 121.7MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.21ms. Allocated memory is still 165.7MB. Free memory was 121.7MB in the beginning and 118.4MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1101.28ms. Allocated memory is still 165.7MB. Free memory was 118.4MB in the beginning and 79.8MB in the end (delta: 38.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3254.95ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 79.0MB in the beginning and 99.4MB in the end (delta: -20.4MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Witness Printer took 94.94ms. Allocated memory is still 199.2MB. Free memory was 99.4MB in the beginning and 96.2MB 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 312 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 1457 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1457 mSDsluCounter, 830 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 129 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 701 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 361]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L107] int pumpRunning = 0; [L108] int systemActive = 1; [L417] int waterLevel = 1; [L418] int methaneLevelCritical = 0; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L912] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L985] int retValue_acc ; [L986] int tmp ; [L990] FCALL select_helpers() [L991] FCALL select_features() [L992] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L992] RET, EXPR valid_product() [L992] tmp = valid_product() [L994] COND TRUE \read(tmp) [L996] FCALL setup() [L997] CALL runTest() [L979] CALL test() [L352] int splverifierCounter ; [L353] int tmp ; [L354] int tmp___0 ; [L355] int tmp___1 ; [L356] int tmp___2 ; [L359] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L361] COND TRUE 1 [L363] COND TRUE splverifierCounter < 4 [L369] tmp = __VERIFIER_nondet_int() [L371] COND FALSE !(\read(tmp)) [L379] tmp___0 = __VERIFIER_nondet_int() [L381] COND FALSE !(\read(tmp___0)) [L389] tmp___2 = __VERIFIER_nondet_int() [L391] COND TRUE \read(tmp___2) [L404] CALL timeShift() [L115] COND FALSE !(\read(pumpRunning)) [L122] COND TRUE \read(systemActive) [L124] CALL processEnvironment() [L196] int tmp ; [L199] COND FALSE !(\read(pumpRunning)) [L214] CALL processEnvironment__wrappee__methaneQuery() [L170] int tmp ; [L173] COND FALSE !(\read(pumpRunning)) [L188] CALL processEnvironment__wrappee__highWaterSensor() [L144] int tmp ; [L147] COND TRUE ! pumpRunning [L149] CALL, EXPR isHighWaterLevel() [L310] int retValue_acc ; [L311] int tmp ; [L312] int tmp___0 ; [L316] CALL, EXPR isHighWaterSensorDry() [L497] int retValue_acc ; [L500] COND TRUE waterLevel < 2 [L501] retValue_acc = 1 [L502] return (retValue_acc); [L316] RET, EXPR isHighWaterSensorDry() [L316] tmp = isHighWaterSensorDry() [L318] COND TRUE \read(tmp) [L319] tmp___0 = 0 [L323] retValue_acc = tmp___0 [L324] return (retValue_acc); [L149] RET, EXPR isHighWaterLevel() [L149] tmp = isHighWaterLevel() [L151] COND FALSE !(\read(tmp)) [L157] FCALL processEnvironment__wrappee__base() [L188] RET processEnvironment__wrappee__highWaterSensor() [L214] RET processEnvironment__wrappee__methaneQuery() [L124] RET processEnvironment() [L130] CALL __utac_acc__Specification4_spec__1() [L521] int tmp ; [L522] int tmp___0 ; [L526] CALL, EXPR getWaterLevel() [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); [L526] RET, EXPR getWaterLevel() [L526] tmp = getWaterLevel() [L528] COND FALSE !(tmp == 0) [L130] RET __utac_acc__Specification4_spec__1() [L404] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 361]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L107] int pumpRunning = 0; [L108] int systemActive = 1; [L417] int waterLevel = 1; [L418] int methaneLevelCritical = 0; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L912] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L985] int retValue_acc ; [L986] int tmp ; [L990] FCALL select_helpers() [L991] FCALL select_features() [L992] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L992] RET, EXPR valid_product() [L992] tmp = valid_product() [L994] COND TRUE \read(tmp) [L996] FCALL setup() [L997] CALL runTest() [L979] CALL test() [L352] int splverifierCounter ; [L353] int tmp ; [L354] int tmp___0 ; [L355] int tmp___1 ; [L356] int tmp___2 ; [L359] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L361] COND TRUE 1 [L363] COND TRUE splverifierCounter < 4 [L369] tmp = __VERIFIER_nondet_int() [L371] COND FALSE !(\read(tmp)) [L379] tmp___0 = __VERIFIER_nondet_int() [L381] COND FALSE !(\read(tmp___0)) [L389] tmp___2 = __VERIFIER_nondet_int() [L391] COND TRUE \read(tmp___2) [L404] CALL timeShift() [L115] COND FALSE !(\read(pumpRunning)) [L122] COND TRUE \read(systemActive) [L124] CALL processEnvironment() [L196] int tmp ; [L199] COND FALSE !(\read(pumpRunning)) [L214] CALL processEnvironment__wrappee__methaneQuery() [L170] int tmp ; [L173] COND FALSE !(\read(pumpRunning)) [L188] CALL processEnvironment__wrappee__highWaterSensor() [L144] int tmp ; [L147] COND TRUE ! pumpRunning [L149] CALL, EXPR isHighWaterLevel() [L310] int retValue_acc ; [L311] int tmp ; [L312] int tmp___0 ; [L316] CALL, EXPR isHighWaterSensorDry() [L497] int retValue_acc ; [L500] COND TRUE waterLevel < 2 [L501] retValue_acc = 1 [L502] return (retValue_acc); [L316] RET, EXPR isHighWaterSensorDry() [L316] tmp = isHighWaterSensorDry() [L318] COND TRUE \read(tmp) [L319] tmp___0 = 0 [L323] retValue_acc = tmp___0 [L324] return (retValue_acc); [L149] RET, EXPR isHighWaterLevel() [L149] tmp = isHighWaterLevel() [L151] COND FALSE !(\read(tmp)) [L157] FCALL processEnvironment__wrappee__base() [L188] RET processEnvironment__wrappee__highWaterSensor() [L214] RET processEnvironment__wrappee__methaneQuery() [L124] RET processEnvironment() [L130] CALL __utac_acc__Specification4_spec__1() [L521] int tmp ; [L522] int tmp___0 ; [L526] CALL, EXPR getWaterLevel() [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); [L526] RET, EXPR getWaterLevel() [L526] tmp = getWaterLevel() [L528] COND FALSE !(tmp == 0) [L130] RET __utac_acc__Specification4_spec__1() [L404] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-25 18:00:04,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511de19b-7778-465f-8422-cd9c162560de/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)