./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer --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 2dd43f49bf0c50f8e266b43f103f07ac5fa1d3b0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:10:20,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:10:20,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:10:20,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:10:20,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:10:20,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:10:20,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:10:20,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:10:20,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:10:20,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:10:20,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:10:20,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:10:20,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:10:20,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:10:20,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:10:20,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:10:20,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:10:20,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:10:20,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:10:20,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:10:20,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:10:20,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:10:20,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:10:20,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:10:20,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:10:20,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:10:20,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:10:20,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:10:20,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:10:20,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:10:20,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:10:20,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:10:20,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:10:20,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:10:20,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:10:20,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:10:20,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:10:20,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:10:20,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:10:20,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:10:20,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:10:20,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:10:20,597 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:10:20,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:10:20,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:10:20,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:10:20,599 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:10:20,599 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:10:20,599 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:10:20,600 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:10:20,600 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:10:20,600 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:10:20,600 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:10:20,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:10:20,601 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:10:20,601 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:10:20,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:10:20,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:10:20,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:10:20,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:10:20,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:10:20,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:10:20,603 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:10:20,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:10:20,603 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:10:20,603 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:10:20,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:10:20,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:10:20,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:10:20,604 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:10:20,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:10:20,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:10:20,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:10:20,605 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:10:20,606 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:10:20,606 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-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2dd43f49bf0c50f8e266b43f103f07ac5fa1d3b0 [2020-11-29 19:10:20,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:10:20,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:10:20,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:10:20,893 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:10:20,894 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:10:20,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c [2020-11-29 19:10:20,973 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer/data/cab78ec7b/459a594fc2094c37815be85fbc951a09/FLAGaa20df235 [2020-11-29 19:10:21,367 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.parser.UltimateCdtExternalSettingsProvider$ToolchainDependency.access$0(UltimateCdtExternalSettingsProvider.java:86) at de.uni_freiburg.informatik.ultimate.cdt.parser.UltimateCdtExternalSettingsProvider.getSettings(UltimateCdtExternalSettingsProvider.java:67) at org.eclipse.cdt.core.settings.model.extension.CExternalSettingProvider.getSettings(CExternalSettingProvider.java:48) at org.eclipse.cdt.internal.core.settings.model.ExtensionContainerFactory$CExtensionSettingProviderDescriptor.getContainer(ExtensionContainerFactory.java:110) at org.eclipse.cdt.internal.core.settings.model.ExtensionContainerFactory.createContainer(ExtensionContainerFactory.java:186) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager$ContainerDescriptor.(CExternalSettingsManager.java:147) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager.checkExternalSettingsChange(CExternalSettingsManager.java:683) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager.processContainerChange(CExternalSettingsManager.java:501) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager$2.run(CExternalSettingsManager.java:615) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager$5.run(CProjectDescriptionManager.java:508) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2292) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager.runAtomic(CProjectDescriptionManager.java:504) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager$4.run(CProjectDescriptionManager.java:484) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-29 19:10:21,607 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:10:21,607 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c [2020-11-29 19:10:21,622 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer/data/cab78ec7b/459a594fc2094c37815be85fbc951a09/FLAGaa20df235 [2020-11-29 19:10:21,931 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer/data/cab78ec7b/459a594fc2094c37815be85fbc951a09 [2020-11-29 19:10:21,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:10:21,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:10:21,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:10:21,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:10:21,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:10:21,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:10:21" (1/1) ... [2020-11-29 19:10:21,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b12ca23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:21, skipping insertion in model container [2020-11-29 19:10:21,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:10:21" (1/1) ... [2020-11-29 19:10:21,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:10:22,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:10:22,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:10:22,401 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:10:22,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:10:22,525 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:10:22,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:22 WrapperNode [2020-11-29 19:10:22,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:10:22,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:10:22,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:10:22,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:10:22,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:22" (1/1) ... [2020-11-29 19:10:22,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:22" (1/1) ... [2020-11-29 19:10:22,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:10:22,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:10:22,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:10:22,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:10:22,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:22" (1/1) ... [2020-11-29 19:10:22,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:22" (1/1) ... [2020-11-29 19:10:22,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:22" (1/1) ... [2020-11-29 19:10:22,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:22" (1/1) ... [2020-11-29 19:10:22,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:22" (1/1) ... [2020-11-29 19:10:22,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:22" (1/1) ... [2020-11-29 19:10:22,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:22" (1/1) ... [2020-11-29 19:10:22,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:10:22,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:10:22,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:10:22,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:10:22,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:10:22,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:10:22,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:10:22,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:10:22,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:10:23,725 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:10:23,725 INFO L298 CfgBuilder]: Removed 120 assume(true) statements. [2020-11-29 19:10:23,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:10:23 BoogieIcfgContainer [2020-11-29 19:10:23,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:10:23,728 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:10:23,728 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:10:23,732 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:10:23,733 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:10:23,733 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:10:21" (1/3) ... [2020-11-29 19:10:23,734 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71be1f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:10:23, skipping insertion in model container [2020-11-29 19:10:23,734 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:10:23,735 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:10:22" (2/3) ... [2020-11-29 19:10:23,735 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71be1f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:10:23, skipping insertion in model container [2020-11-29 19:10:23,735 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:10:23,735 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:10:23" (3/3) ... [2020-11-29 19:10:23,737 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product15.cil.c [2020-11-29 19:10:23,789 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:10:23,789 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:10:23,789 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:10:23,789 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:10:23,789 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:10:23,790 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:10:23,790 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:10:23,790 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:10:23,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2020-11-29 19:10:23,833 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-29 19:10:23,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:10:23,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:10:23,843 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:23,843 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:23,843 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:10:23,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2020-11-29 19:10:23,849 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-29 19:10:23,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:10:23,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:10:23,851 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:23,851 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:23,857 INFO L794 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 18#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 47#L780true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 49#L788true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 61#L134true assume 0 != main_~tmp~0; 68#L105true ~switchedOnBeforeTS~0 := 0; 31#L889true havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 9#L910-1true [2020-11-29 19:10:23,858 INFO L796 eck$LassoCheckResult]: Loop: 9#L910-1true assume !false; 19#L702true assume test_~splverifierCounter~0 < 4; 48#L703true test_~tmp~6 := test_#t~nondet62;havoc test_#t~nondet62; 52#L711true assume !(0 != test_~tmp~6); 53#L711-1true test_~tmp___0~0 := test_#t~nondet63;havoc test_#t~nondet63; 40#L721true assume !(0 != test_~tmp___0~0); 43#L721-1true test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 24#L731true assume 0 != test_~tmp___2~0; 66#L737-1true havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 78#L635true __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 7#L899true assume !(0 != ~pumpRunning~0); 16#L533true assume !(0 != ~systemActive~0); 75#L540true havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 79#L869true __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 5#L910true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 9#L910-1true [2020-11-29 19:10:23,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:23,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 19:10:23,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:23,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78159228] [2020-11-29 19:10:23,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:24,256 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:24,412 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:24,474 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:10:24,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:24,479 INFO L82 PathProgramCache]: Analyzing trace with hash -242168937, now seen corresponding path program 1 times [2020-11-29 19:10:24,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:24,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848556258] [2020-11-29 19:10:24,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:24,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:24,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:24,524 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:10:24,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:24,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1691856273, now seen corresponding path program 1 times [2020-11-29 19:10:24,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:24,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437993581] [2020-11-29 19:10:24,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:24,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:10:24,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437993581] [2020-11-29 19:10:24,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:10:24,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:10:24,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898058956] [2020-11-29 19:10:24,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:10:24,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:10:24,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:10:24,854 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 6 states. [2020-11-29 19:10:25,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:10:25,179 INFO L93 Difference]: Finished difference Result 205 states and 280 transitions. [2020-11-29 19:10:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:10:25,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 205 states and 280 transitions. [2020-11-29 19:10:25,199 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 131 [2020-11-29 19:10:25,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 205 states to 184 states and 259 transitions. [2020-11-29 19:10:25,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2020-11-29 19:10:25,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2020-11-29 19:10:25,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 259 transitions. [2020-11-29 19:10:25,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:10:25,226 INFO L691 BuchiCegarLoop]: Abstraction has 184 states and 259 transitions. [2020-11-29 19:10:25,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 259 transitions. [2020-11-29 19:10:25,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 119. [2020-11-29 19:10:25,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-11-29 19:10:25,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 167 transitions. [2020-11-29 19:10:25,286 INFO L714 BuchiCegarLoop]: Abstraction has 119 states and 167 transitions. [2020-11-29 19:10:25,286 INFO L594 BuchiCegarLoop]: Abstraction has 119 states and 167 transitions. [2020-11-29 19:10:25,286 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:10:25,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 167 transitions. [2020-11-29 19:10:25,289 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2020-11-29 19:10:25,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:10:25,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:10:25,291 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:25,291 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:25,291 INFO L794 eck$LassoCheckResult]: Stem: 350#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 334#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 335#L780 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 358#L788 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 360#L134 assume 0 != main_~tmp~0; 368#L105 ~switchedOnBeforeTS~0 := 0; 347#L889 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 312#L910-1 [2020-11-29 19:10:25,291 INFO L796 eck$LassoCheckResult]: Loop: 312#L910-1 assume !false; 318#L702 assume test_~splverifierCounter~0 < 4; 336#L703 test_~tmp~6 := test_#t~nondet62;havoc test_#t~nondet62; 359#L711 assume !(0 != test_~tmp~6); 349#L711-1 test_~tmp___0~0 := test_#t~nondet63;havoc test_#t~nondet63; 353#L721 assume !(0 != test_~tmp___0~0); 355#L721-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 339#L731 assume 0 != test_~tmp___2~0; 341#L737-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 370#L635 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 315#L899 assume !(0 != ~pumpRunning~0); 317#L533 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret43, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 331#L565 assume !(0 != ~pumpRunning~0); 366#L540 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 372#L869 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 310#L910 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 312#L910-1 [2020-11-29 19:10:25,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:25,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 19:10:25,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:25,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784308281] [2020-11-29 19:10:25,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:25,347 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:25,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:25,417 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:10:25,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:25,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1062169029, now seen corresponding path program 1 times [2020-11-29 19:10:25,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:25,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948618923] [2020-11-29 19:10:25,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:25,425 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:25,429 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:25,433 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:10:25,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:25,434 INFO L82 PathProgramCache]: Analyzing trace with hash 887408395, now seen corresponding path program 1 times [2020-11-29 19:10:25,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:25,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936673623] [2020-11-29 19:10:25,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:10:25,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:10:25,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936673623] [2020-11-29 19:10:25,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:10:25,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:10:25,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134679600] [2020-11-29 19:10:25,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:10:25,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:10:25,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:10:25,613 INFO L87 Difference]: Start difference. First operand 119 states and 167 transitions. cyclomatic complexity: 51 Second operand 5 states. [2020-11-29 19:10:25,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:10:25,801 INFO L93 Difference]: Finished difference Result 316 states and 435 transitions. [2020-11-29 19:10:25,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:10:25,804 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 316 states and 435 transitions. [2020-11-29 19:10:25,809 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 162 [2020-11-29 19:10:25,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 316 states to 316 states and 435 transitions. [2020-11-29 19:10:25,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 316 [2020-11-29 19:10:25,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 316 [2020-11-29 19:10:25,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 316 states and 435 transitions. [2020-11-29 19:10:25,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:10:25,824 INFO L691 BuchiCegarLoop]: Abstraction has 316 states and 435 transitions. [2020-11-29 19:10:25,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states and 435 transitions. [2020-11-29 19:10:25,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 231. [2020-11-29 19:10:25,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-11-29 19:10:25,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 313 transitions. [2020-11-29 19:10:25,858 INFO L714 BuchiCegarLoop]: Abstraction has 231 states and 313 transitions. [2020-11-29 19:10:25,858 INFO L594 BuchiCegarLoop]: Abstraction has 231 states and 313 transitions. [2020-11-29 19:10:25,858 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:10:25,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states and 313 transitions. [2020-11-29 19:10:25,862 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 162 [2020-11-29 19:10:25,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:10:25,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:10:25,864 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:25,864 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:10:25,864 INFO L794 eck$LassoCheckResult]: Stem: 803#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 786#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 787#L780 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 812#L788 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 817#L134 assume 0 != main_~tmp~0; 830#L105 ~switchedOnBeforeTS~0 := 0; 800#L889 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 768#L910-1 [2020-11-29 19:10:25,865 INFO L796 eck$LassoCheckResult]: Loop: 768#L910-1 assume !false; 769#L702 assume test_~splverifierCounter~0 < 4; 788#L703 test_~tmp~6 := test_#t~nondet62;havoc test_#t~nondet62; 976#L711 assume !(0 != test_~tmp~6); 977#L711-1 test_~tmp___0~0 := test_#t~nondet63;havoc test_#t~nondet63; 983#L721 assume !(0 != test_~tmp___0~0); 981#L721-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 979#L731 assume 0 != test_~tmp___2~0; 978#L737-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 975#L635 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 969#L899 assume !(0 != ~pumpRunning~0); 966#L533 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret43, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 835#L565 assume !(0 != ~pumpRunning~0); 825#L540 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 842#L869 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 758#L910 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 759#L635-1 __utac_acc__Specification5_spec__3_#t~ret79 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 789#L914 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 768#L910-1 [2020-11-29 19:10:25,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:25,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 19:10:25,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:25,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296976267] [2020-11-29 19:10:25,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:25,965 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:26,025 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:26,036 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:10:26,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:26,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1457795584, now seen corresponding path program 1 times [2020-11-29 19:10:26,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:26,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715011180] [2020-11-29 19:10:26,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:26,046 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:26,051 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:26,056 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:10:26,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:10:26,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1899040314, now seen corresponding path program 1 times [2020-11-29 19:10:26,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:10:26,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003459910] [2020-11-29 19:10:26,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:10:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:26,117 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:10:26,158 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:10:26,175 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:10:26,282 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-11-29 19:11:51,131 WARN L193 SmtUtils]: Spent 1.41 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 19:12:47,665 WARN L193 SmtUtils]: Spent 56.50 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 19:12:47,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:12:47 BoogieIcfgContainer [2020-11-29 19:12:47,883 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:12:47,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:12:47,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:12:47,884 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:12:47,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:10:23" (3/4) ... [2020-11-29 19:12:47,888 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:12:47,961 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e194c816-92b1-4cf6-9da7-ae22e0112b73/bin/uautomizer/witness.graphml [2020-11-29 19:12:47,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:12:47,963 INFO L168 Benchmark]: Toolchain (without parser) took 146026.70 ms. Allocated memory was 102.8 MB in the beginning and 155.2 MB in the end (delta: 52.4 MB). Free memory was 66.8 MB in the beginning and 93.6 MB in the end (delta: -26.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:12:47,964 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 102.8 MB. Free memory was 75.8 MB in the beginning and 75.8 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:12:47,964 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.29 ms. Allocated memory is still 102.8 MB. Free memory was 66.5 MB in the beginning and 68.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:12:47,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.24 ms. Allocated memory is still 102.8 MB. Free memory was 68.8 MB in the beginning and 65.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:12:47,966 INFO L168 Benchmark]: Boogie Preprocessor took 44.97 ms. Allocated memory is still 102.8 MB. Free memory was 65.9 MB in the beginning and 63.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:12:47,967 INFO L168 Benchmark]: RCFGBuilder took 1076.51 ms. Allocated memory is still 102.8 MB. Free memory was 63.8 MB in the beginning and 51.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:12:47,968 INFO L168 Benchmark]: BuchiAutomizer took 144154.92 ms. Allocated memory was 102.8 MB in the beginning and 155.2 MB in the end (delta: 52.4 MB). Free memory was 51.3 MB in the beginning and 96.6 MB in the end (delta: -45.3 MB). Peak memory consumption was 67.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:12:47,968 INFO L168 Benchmark]: Witness Printer took 77.58 ms. Allocated memory is still 155.2 MB. Free memory was 96.6 MB in the beginning and 93.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:12:47,972 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 102.8 MB. Free memory was 75.8 MB in the beginning and 75.8 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 589.29 ms. Allocated memory is still 102.8 MB. Free memory was 66.5 MB in the beginning and 68.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.24 ms. Allocated memory is still 102.8 MB. Free memory was 68.8 MB in the beginning and 65.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.97 ms. Allocated memory is still 102.8 MB. Free memory was 65.9 MB in the beginning and 63.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1076.51 ms. Allocated memory is still 102.8 MB. Free memory was 63.8 MB in the beginning and 51.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 144154.92 ms. Allocated memory was 102.8 MB in the beginning and 155.2 MB in the end (delta: 52.4 MB). Free memory was 51.3 MB in the beginning and 96.6 MB in the end (delta: -45.3 MB). Peak memory consumption was 67.9 MB. Max. memory is 16.1 GB. * Witness Printer took 77.58 ms. Allocated memory is still 155.2 MB. Free memory was 96.6 MB in the beginning and 93.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 231 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 144.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 143.2s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 150 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 231 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 256 SDtfs, 685 SDslu, 870 SDs, 0 SdLazy, 109 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 701]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=12297} State at position 1 is {NULL=0, NULL=0, NULL=12300, retValue_acc=0, NULL=12297, NULL=0, NULL=0, NULL=12321, NULL=12319, methaneLevelCritical=0, NULL=12322, tmp=1, NULL=0, tmp=0, NULL=12312, tmp___1=0, NULL=12314, NULL=0, NULL=0, NULL=12325, NULL=12318, NULL=12306, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=12303, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@383fe604=0, \result=0, NULL=12305, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2793614a=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=12310, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=12316, \result=1, head=0, pumpRunning=0, tmp=1, NULL=12304, NULL=12307, \result=0, tmp___0=0, NULL=12309, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5677caf9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@341c852f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fb59f13=0, NULL=0, NULL=12323, NULL=12299, retValue_acc=1, NULL=0, NULL=0, retValue_acc=1, NULL=12298, NULL=0, tmp___2=64, NULL=12324, NULL=12302, splverifierCounter=0, NULL=0, NULL=0, NULL=12315, NULL=12320, NULL=12313, NULL=12308, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a3a8ffd=0, head=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ac06428=64, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39c2ab8f=0, NULL=12317, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14290c90=0, NULL=0, NULL=0, NULL=0, NULL=12311, NULL=12301, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L317] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L521] int pumpRunning = 0; [L522] int systemActive = 1; [L794] int waterLevel = 1; [L795] int methaneLevelCritical = 0; [L883] int switchedOnBeforeTS ; [L125] int retValue_acc ; [L126] int tmp ; [L784] int retValue_acc ; [L787] retValue_acc = 1 [L788] return (retValue_acc); [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) [L888] switchedOnBeforeTS = 0 [L692] int splverifierCounter ; [L693] int tmp ; [L694] int tmp___0 ; [L695] int tmp___1 ; [L696] int tmp___2 ; [L699] splverifierCounter = 0 Loop: [L701] COND TRUE 1 [L703] COND TRUE splverifierCounter < 4 [L709] tmp = __VERIFIER_nondet_int() [L711] COND FALSE !(\read(tmp)) [L719] tmp___0 = __VERIFIER_nondet_int() [L721] COND FALSE !(\read(tmp___0)) [L729] tmp___2 = __VERIFIER_nondet_int() [L731] COND TRUE \read(tmp___2) [L631] int retValue_acc ; [L634] retValue_acc = pumpRunning [L635] return (retValue_acc); [L897] switchedOnBeforeTS = isPumpRunning() [L533] COND FALSE !(\read(pumpRunning)) [L540] COND TRUE \read(systemActive) [L562] int tmp ; [L565] COND FALSE !(\read(pumpRunning)) [L903] int tmp ; [L904] int tmp___0 ; [L865] int retValue_acc ; [L868] retValue_acc = waterLevel [L869] return (retValue_acc); [L908] tmp = getWaterLevel() [L910] COND TRUE tmp != 2 [L631] int retValue_acc ; [L634] retValue_acc = pumpRunning [L635] return (retValue_acc); [L912] tmp___0 = isPumpRunning() [L914] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...