./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg --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 ae076af2cea67b9cfc404edc1600766999266c2b24082e43516a66dae23512b8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.2.1-dev-b2eff8b [2021-10-28 08:38:23,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:38:23,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:38:23,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:38:23,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:38:23,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:38:23,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:38:23,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:38:23,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:38:23,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:38:23,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:38:23,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:38:23,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:38:23,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:38:23,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:38:23,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:38:23,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:38:23,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:38:23,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:38:23,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:38:23,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:38:23,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:38:23,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:38:23,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:38:23,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:38:23,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:38:23,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:38:23,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:38:23,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:38:23,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:38:23,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:38:23,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:38:23,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:38:23,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:38:23,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:38:23,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:38:23,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:38:23,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:38:23,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:38:23,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:38:23,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:38:23,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:38:23,647 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:38:23,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:38:23,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:38:23,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:38:23,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:38:23,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:38:23,650 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:38:23,650 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:38:23,650 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:38:23,651 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:38:23,651 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:38:23,651 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:38:23,652 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:38:23,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:38:23,652 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:38:23,652 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:38:23,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:38:23,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:38:23,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:38:23,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:38:23,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:38:23,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:38:23,654 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:38:23,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:38:23,655 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:38:23,655 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:38:23,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:38:23,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:38:23,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:38:23,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:38:23,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:38:23,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:38:23,658 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:38:23,659 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_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae076af2cea67b9cfc404edc1600766999266c2b24082e43516a66dae23512b8 [2021-10-28 08:38:23,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:38:23,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:38:23,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:38:23,999 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:38:24,004 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:38:24,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2021-10-28 08:38:24,112 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/data/3104095f4/6b2827ab177d4c14b6e825b30dd5b284/FLAG0bcfe90af [2021-10-28 08:38:24,781 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:38:24,782 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2021-10-28 08:38:24,802 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/data/3104095f4/6b2827ab177d4c14b6e825b30dd5b284/FLAG0bcfe90af [2021-10-28 08:38:25,055 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/data/3104095f4/6b2827ab177d4c14b6e825b30dd5b284 [2021-10-28 08:38:25,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:38:25,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:38:25,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:38:25,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:38:25,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:38:25,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:38:25" (1/1) ... [2021-10-28 08:38:25,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3566aa8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:25, skipping insertion in model container [2021-10-28 08:38:25,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:38:25" (1/1) ... [2021-10-28 08:38:25,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:38:25,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:38:25,568 WARN L228 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_856d0daa-9b46-4509-bb98-b9d538bda0f5/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c[11292,11305] [2021-10-28 08:38:25,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:38:25,691 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:38:25,793 WARN L228 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_856d0daa-9b46-4509-bb98-b9d538bda0f5/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c[11292,11305] [2021-10-28 08:38:25,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:38:25,872 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:38:25,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:25 WrapperNode [2021-10-28 08:38:25,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:38:25,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:38:25,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:38:25,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:38:25,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:25" (1/1) ... [2021-10-28 08:38:25,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:25" (1/1) ... [2021-10-28 08:38:25,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:38:25,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:38:25,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:38:25,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:38:25,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:25" (1/1) ... [2021-10-28 08:38:25,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:25" (1/1) ... [2021-10-28 08:38:26,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:25" (1/1) ... [2021-10-28 08:38:26,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:25" (1/1) ... [2021-10-28 08:38:26,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:25" (1/1) ... [2021-10-28 08:38:26,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:25" (1/1) ... [2021-10-28 08:38:26,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:25" (1/1) ... [2021-10-28 08:38:26,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:38:26,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:38:26,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:38:26,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:38:26,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:25" (1/1) ... [2021-10-28 08:38:26,071 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:26,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:26,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:26,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:38:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:38:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:38:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:38:26,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:38:27,213 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:38:27,214 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-10-28 08:38:27,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:38:27 BoogieIcfgContainer [2021-10-28 08:38:27,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:38:27,218 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:38:27,219 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:38:27,223 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:38:27,224 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:38:27,224 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:38:25" (1/3) ... [2021-10-28 08:38:27,226 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4552d16f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:38:27, skipping insertion in model container [2021-10-28 08:38:27,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:38:27,227 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:25" (2/3) ... [2021-10-28 08:38:27,228 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4552d16f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:38:27, skipping insertion in model container [2021-10-28 08:38:27,228 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:38:27,228 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:38:27" (3/3) ... [2021-10-28 08:38:27,230 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2021-10-28 08:38:27,299 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:38:27,299 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:38:27,299 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:38:27,301 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:38:27,301 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:38:27,301 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:38:27,302 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:38:27,302 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:38:27,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5405405405405406) internal successors, (114), 74 states have internal predecessors, (114), 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) [2021-10-28 08:38:27,376 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-28 08:38:27,376 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:38:27,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:38:27,387 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:38:27,387 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:27,387 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:38:27,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5405405405405406) internal successors, (114), 74 states have internal predecessors, (114), 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) [2021-10-28 08:38:27,408 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-28 08:38:27,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:38:27,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:38:27,410 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:38:27,410 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:27,424 INFO L791 eck$LassoCheckResult]: Stem: 63#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(110, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(80, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(117, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(109, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(112, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(32, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 49#L-1true havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 68#L680true 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; 37#L688true main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 21#L775true assume 0 != main_~tmp~6; 5#L752true havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 15#L797-1true [2021-10-28 08:38:27,427 INFO L793 eck$LassoCheckResult]: Loop: 15#L797-1true assume !false; 69#L601true assume test_~splverifierCounter~0 < 4; 9#L602true test_~tmp~5 := test_#t~nondet61;havoc test_#t~nondet61; 64#L610true assume !(0 != test_~tmp~5); 24#L610-1true test_~tmp___0~1 := test_#t~nondet62;havoc test_#t~nondet62; 66#L620true assume !(0 != test_~tmp___0~1); 39#L620-1true test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 12#L630true assume 0 != test_~tmp___2~0; 42#L636-2true assume !(0 != ~pumpRunning~0); 30#L442true assume !(0 != ~systemActive~0); 4#L449true havoc __utac_acc__Specification1_spec__1_#t~ret67, __utac_acc__Specification1_spec__1_#t~ret68, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 61#L859true __utac_acc__Specification1_spec__1_#t~ret67 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret67;havoc __utac_acc__Specification1_spec__1_#t~ret67; 19#L797true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 15#L797-1true [2021-10-28 08:38:27,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:27,436 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 08:38:27,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:27,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578558181] [2021-10-28 08:38:27,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:27,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:27,861 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:28,092 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:28,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:28,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1681529854, now seen corresponding path program 1 times [2021-10-28 08:38:28,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:28,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216926827] [2021-10-28 08:38:28,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:28,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:28,106 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:28,118 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:28,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:28,122 INFO L85 PathProgramCache]: Analyzing trace with hash 32749084, now seen corresponding path program 1 times [2021-10-28 08:38:28,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:28,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617023207] [2021-10-28 08:38:28,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:28,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:28,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:28,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:28,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617023207] [2021-10-28 08:38:28,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617023207] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:28,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:28,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:38:28,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367929492] [2021-10-28 08:38:28,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:28,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:38:28,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:28,596 INFO L87 Difference]: Start difference. First operand has 75 states, 74 states have (on average 1.5405405405405406) internal successors, (114), 74 states have internal predecessors, (114), 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 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-10-28 08:38:29,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:29,011 INFO L93 Difference]: Finished difference Result 75 states and 103 transitions. [2021-10-28 08:38:29,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:38:29,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 103 transitions. [2021-10-28 08:38:29,022 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-28 08:38:29,032 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 96 transitions. [2021-10-28 08:38:29,033 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2021-10-28 08:38:29,034 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2021-10-28 08:38:29,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 96 transitions. [2021-10-28 08:38:29,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:38:29,036 INFO L681 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2021-10-28 08:38:29,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 96 transitions. [2021-10-28 08:38:29,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-28 08:38:29,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.411764705882353) internal successors, (96), 67 states have internal predecessors, (96), 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) [2021-10-28 08:38:29,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 96 transitions. [2021-10-28 08:38:29,097 INFO L704 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2021-10-28 08:38:29,099 INFO L587 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2021-10-28 08:38:29,099 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:38:29,099 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 96 transitions. [2021-10-28 08:38:29,104 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-28 08:38:29,105 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:38:29,105 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:38:29,106 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:38:29,107 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:29,108 INFO L791 eck$LassoCheckResult]: Stem: 233#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(110, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(80, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(117, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(109, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(112, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(32, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 227#L-1 havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 228#L680 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; 220#L688 main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 200#L775 assume 0 != main_~tmp~6; 170#L752 havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 171#L797-1 [2021-10-28 08:38:29,108 INFO L793 eck$LassoCheckResult]: Loop: 171#L797-1 assume !false; 191#L601 assume test_~splverifierCounter~0 < 4; 179#L602 test_~tmp~5 := test_#t~nondet61;havoc test_#t~nondet61; 180#L610 assume !(0 != test_~tmp~5); 204#L610-1 test_~tmp___0~1 := test_#t~nondet62;havoc test_#t~nondet62; 205#L620 assume !(0 != test_~tmp___0~1); 195#L620-1 test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 184#L630 assume 0 != test_~tmp___2~0; 185#L636-2 assume !(0 != ~pumpRunning~0); 176#L442 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret42, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 211#L474 assume !(0 == ~pumpRunning~0); 168#L449 havoc __utac_acc__Specification1_spec__1_#t~ret67, __utac_acc__Specification1_spec__1_#t~ret68, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 169#L859 __utac_acc__Specification1_spec__1_#t~ret67 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret67;havoc __utac_acc__Specification1_spec__1_#t~ret67; 196#L797 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 171#L797-1 [2021-10-28 08:38:29,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:29,109 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 08:38:29,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:29,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677554621] [2021-10-28 08:38:29,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:29,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:29,205 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:29,314 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:29,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:29,320 INFO L85 PathProgramCache]: Analyzing trace with hash -619428453, now seen corresponding path program 1 times [2021-10-28 08:38:29,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:29,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649792109] [2021-10-28 08:38:29,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:29,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:29,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:29,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:29,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649792109] [2021-10-28 08:38:29,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649792109] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:29,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:38:29,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:38:29,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873714795] [2021-10-28 08:38:29,366 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:38:29,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:29,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:38:29,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:38:29,369 INFO L87 Difference]: Start difference. First operand 68 states and 96 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-10-28 08:38:29,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:29,470 INFO L93 Difference]: Finished difference Result 109 states and 147 transitions. [2021-10-28 08:38:29,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:38:29,473 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 147 transitions. [2021-10-28 08:38:29,483 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2021-10-28 08:38:29,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 109 states and 147 transitions. [2021-10-28 08:38:29,488 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 109 [2021-10-28 08:38:29,489 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 109 [2021-10-28 08:38:29,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 147 transitions. [2021-10-28 08:38:29,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:38:29,492 INFO L681 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2021-10-28 08:38:29,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 147 transitions. [2021-10-28 08:38:29,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-10-28 08:38:29,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.348623853211009) internal successors, (147), 108 states have internal predecessors, (147), 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) [2021-10-28 08:38:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 147 transitions. [2021-10-28 08:38:29,510 INFO L704 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2021-10-28 08:38:29,512 INFO L587 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2021-10-28 08:38:29,512 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:38:29,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 147 transitions. [2021-10-28 08:38:29,515 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2021-10-28 08:38:29,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:38:29,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:38:29,517 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:38:29,518 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:38:29,518 INFO L791 eck$LassoCheckResult]: Stem: 419#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(110, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(80, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(117, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(109, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(112, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(32, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 410#L-1 havoc main_#res;havoc main_#t~ret66, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 411#L680 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; 404#L688 main_#t~ret66 := valid_product_#res;main_~tmp~6 := main_#t~ret66;havoc main_#t~ret66; 383#L775 assume 0 != main_~tmp~6; 353#L752 havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 354#L797-1 [2021-10-28 08:38:29,519 INFO L793 eck$LassoCheckResult]: Loop: 354#L797-1 assume !false; 372#L601 assume test_~splverifierCounter~0 < 4; 361#L602 test_~tmp~5 := test_#t~nondet61;havoc test_#t~nondet61; 362#L610 assume !(0 != test_~tmp~5); 387#L610-1 test_~tmp___0~1 := test_#t~nondet62;havoc test_#t~nondet62; 388#L620 assume !(0 != test_~tmp___0~1); 378#L620-1 test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 365#L630 assume 0 != test_~tmp___2~0; 366#L636-2 assume !(0 != ~pumpRunning~0); 393#L442 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret42, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 394#L474 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret60, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 414#L899 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 386#L904 isHighWaterLevel_#t~ret60 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret60;havoc isHighWaterLevel_#t~ret60; 384#L576 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 385#L576-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 415#L582 processEnvironment_#t~ret42 := isHighWaterLevel_#res;processEnvironment_~tmp~3 := processEnvironment_#t~ret42;havoc processEnvironment_#t~ret42; 421#L478 assume !(0 != processEnvironment_~tmp~3); 351#L449 havoc __utac_acc__Specification1_spec__1_#t~ret67, __utac_acc__Specification1_spec__1_#t~ret68, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 352#L859 __utac_acc__Specification1_spec__1_#t~ret67 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret67;havoc __utac_acc__Specification1_spec__1_#t~ret67; 379#L797 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 354#L797-1 [2021-10-28 08:38:29,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:29,519 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 08:38:29,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:29,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863351826] [2021-10-28 08:38:29,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:29,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:29,622 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:29,709 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:29,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:29,710 INFO L85 PathProgramCache]: Analyzing trace with hash -22033881, now seen corresponding path program 1 times [2021-10-28 08:38:29,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:29,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417938691] [2021-10-28 08:38:29,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:29,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:29,718 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:29,728 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:29,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:29,728 INFO L85 PathProgramCache]: Analyzing trace with hash -7321907, now seen corresponding path program 1 times [2021-10-28 08:38:29,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:29,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821744161] [2021-10-28 08:38:29,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:29,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:29,767 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:29,827 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:39:48,331 WARN L207 SmtUtils]: Spent 1.30 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 08:41:06,723 WARN L207 SmtUtils]: Spent 39.42 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 08:41:06,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:41:06 BoogieIcfgContainer [2021-10-28 08:41:06,948 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:41:06,949 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:41:06,949 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:41:06,949 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:41:06,950 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:38:27" (3/4) ... [2021-10-28 08:41:06,953 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 08:41:07,039 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:41:07,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:41:07,040 INFO L168 Benchmark]: Toolchain (without parser) took 161972.37 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 100.3 MB in the beginning and 51.0 MB in the end (delta: 49.3 MB). Peak memory consumption was 77.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:07,041 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 42.7 MB in the beginning and 42.6 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:41:07,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.97 ms. Allocated memory is still 134.2 MB. Free memory was 99.9 MB in the beginning and 102.2 MB in the end (delta: -2.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:07,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.50 ms. Allocated memory is still 134.2 MB. Free memory was 101.5 MB in the beginning and 99.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:07,043 INFO L168 Benchmark]: Boogie Preprocessor took 46.45 ms. Allocated memory is still 134.2 MB. Free memory was 99.3 MB in the beginning and 96.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:07,044 INFO L168 Benchmark]: RCFGBuilder took 1185.29 ms. Allocated memory is still 134.2 MB. Free memory was 96.7 MB in the beginning and 58.2 MB in the end (delta: 38.5 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:07,045 INFO L168 Benchmark]: BuchiAutomizer took 159729.78 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 58.2 MB in the beginning and 53.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 55.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:07,045 INFO L168 Benchmark]: Witness Printer took 90.59 ms. Allocated memory is still 161.5 MB. Free memory was 53.1 MB in the beginning and 51.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:41:07,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 42.7 MB in the beginning and 42.6 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 796.97 ms. Allocated memory is still 134.2 MB. Free memory was 99.9 MB in the beginning and 102.2 MB in the end (delta: -2.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.50 ms. Allocated memory is still 134.2 MB. Free memory was 101.5 MB in the beginning and 99.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.45 ms. Allocated memory is still 134.2 MB. Free memory was 99.3 MB in the beginning and 96.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1185.29 ms. Allocated memory is still 134.2 MB. Free memory was 96.7 MB in the beginning and 58.2 MB in the end (delta: 38.5 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 159729.78 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 58.2 MB in the beginning and 53.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 55.1 MB. Max. memory is 16.1 GB. * Witness Printer took 90.59 ms. Allocated memory is still 161.5 MB. Free memory was 53.1 MB in the beginning and 51.0 MB in the end (delta: 2.1 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 109 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 159.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 158.8s. Construction of modules took 0.3s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 109 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 209 SDtfs, 378 SDslu, 50 SDs, 0 SdLazy, 29 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 600]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=32143} State at position 1 is {NULL=0, NULL=0, NULL=32165, NULL=32143, NULL=0, NULL=32177, retValue_acc=0, NULL=32167, methaneLevelCritical=0, NULL=32178, tmp___0=0, retValue_acc=0, NULL=32164, tmp=0, tmp___1=0, NULL=32159, tmp___0=0, NULL=0, NULL=0, NULL=32158, NULL=32170, NULL=32175, cleanupTimeShifts=4, NULL=32161, NULL=32183, NULL=32174, NULL=32166, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@308eecd=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3294b840=0, NULL=0, retValue_acc=0, NULL=0, \result=0, NULL=32173, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b56017c=0, NULL=32180, \result=1, head=0, pumpRunning=0, NULL=32172, NULL=32163, \result=0, NULL=32169, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f5737bf=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b28d577=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=32179, \result=1, NULL=0, retValue_acc=1, NULL=0, tmp=1, NULL=0, NULL=32181, NULL=0, tmp___2=64, retValue_acc=1, NULL=32160, tmp___0=0, NULL=32176, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=32182, NULL=32156, NULL=32162, NULL=32157, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47a501cd=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43d22c4b=64, NULL=32168, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d6847eb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bdae39=0, NULL=0, NULL=0, NULL=32171} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L434] int pumpRunning = 0; [L435] int systemActive = 1; [L693] int cleanupTimeShifts = 4; [L816] int waterLevel = 1; [L817] int methaneLevelCritical = 0; [L766] int retValue_acc ; [L767] int tmp ; [L684] int retValue_acc ; [L687] retValue_acc = 1 [L688] return (retValue_acc); [L773] tmp = valid_product() [L775] COND TRUE \read(tmp) [L591] int splverifierCounter ; [L592] int tmp ; [L593] int tmp___0 ; [L594] int tmp___1 ; [L595] int tmp___2 ; [L598] splverifierCounter = 0 Loop: [L600] COND TRUE 1 [L602] COND TRUE splverifierCounter < 4 [L608] tmp = __VERIFIER_nondet_int() [L610] COND FALSE !(\read(tmp)) [L618] tmp___0 = __VERIFIER_nondet_int() [L620] COND FALSE !(\read(tmp___0)) [L628] tmp___2 = __VERIFIER_nondet_int() [L630] COND TRUE \read(tmp___2) [L442] COND FALSE !(\read(pumpRunning)) [L449] COND TRUE \read(systemActive) [L471] int tmp ; [L474] COND TRUE ! pumpRunning [L568] int retValue_acc ; [L569] int tmp ; [L570] int tmp___0 ; [L896] int retValue_acc ; [L899] COND TRUE waterLevel < 2 [L900] retValue_acc = 1 [L901] return (retValue_acc); [L574] tmp = isHighWaterSensorDry() [L576] COND TRUE \read(tmp) [L577] tmp___0 = 0 [L581] retValue_acc = tmp___0 [L582] return (retValue_acc); [L476] tmp = isHighWaterLevel() [L478] COND FALSE !(\read(tmp)) [L790] int tmp ; [L791] int tmp___0 ; [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] return (retValue_acc); [L795] tmp = isMethaneLevelCritical() [L797] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 08:41:07,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_856d0daa-9b46-4509-bb98-b9d538bda0f5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...