./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.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_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/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_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/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_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/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 e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 08:35:14,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:35:14,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:35:14,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:35:14,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:35:14,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:35:14,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:35:14,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:35:14,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:35:14,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:35:14,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:35:14,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:35:14,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:35:14,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:35:14,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:35:14,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:35:14,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:35:14,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:35:14,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:35:14,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:35:14,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:35:14,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:35:14,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:35:14,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:35:14,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:35:14,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:35:14,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:35:14,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:35:14,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:35:14,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:35:14,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:35:14,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:35:14,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:35:14,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:35:14,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:35:14,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:35:14,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:35:14,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:35:14,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:35:14,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:35:14,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:35:14,766 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:35:14,822 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:35:14,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:35:14,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:35:14,824 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:35:14,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:35:14,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:35:14,827 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:35:14,827 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:35:14,827 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:35:14,827 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:35:14,829 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:35:14,829 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:35:14,829 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:35:14,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:35:14,830 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:35:14,830 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:35:14,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:35:14,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:35:14,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:35:14,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:35:14,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:35:14,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:35:14,832 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:35:14,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:35:14,832 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:35:14,832 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:35:14,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:35:14,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:35:14,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:35:14,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:35:14,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:35:14,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:35:14,838 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:35:14,838 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_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a [2021-10-28 08:35:15,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:35:15,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:35:15,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:35:15,139 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:35:15,141 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:35:15,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-28 08:35:15,217 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/bin/uautomizer-UnR33cPsHg/data/6f35257d5/0ada534a2534417cb956a2ddfeb1b439/FLAG29954d440 [2021-10-28 08:35:15,860 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:35:15,867 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-28 08:35:15,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/bin/uautomizer-UnR33cPsHg/data/6f35257d5/0ada534a2534417cb956a2ddfeb1b439/FLAG29954d440 [2021-10-28 08:35:16,131 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/bin/uautomizer-UnR33cPsHg/data/6f35257d5/0ada534a2534417cb956a2ddfeb1b439 [2021-10-28 08:35:16,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:35:16,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:35:16,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:35:16,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:35:16,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:35:16,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:35:16" (1/1) ... [2021-10-28 08:35:16,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b6c3584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:16, skipping insertion in model container [2021-10-28 08:35:16,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:35:16" (1/1) ... [2021-10-28 08:35:16,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:35:16,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:35:16,462 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_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2021-10-28 08:35:16,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:35:16,525 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:35:16,565 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_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2021-10-28 08:35:16,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:35:16,632 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:35:16,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:16 WrapperNode [2021-10-28 08:35:16,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:35:16,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:35:16,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:35:16,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:35:16,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:16" (1/1) ... [2021-10-28 08:35:16,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:16" (1/1) ... [2021-10-28 08:35:16,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:35:16,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:35:16,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:35:16,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:35:16,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:16" (1/1) ... [2021-10-28 08:35:16,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:16" (1/1) ... [2021-10-28 08:35:16,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:16" (1/1) ... [2021-10-28 08:35:16,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:16" (1/1) ... [2021-10-28 08:35:16,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:16" (1/1) ... [2021-10-28 08:35:16,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:16" (1/1) ... [2021-10-28 08:35:16,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:16" (1/1) ... [2021-10-28 08:35:16,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:35:16,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:35:16,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:35:16,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:35:16,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:16" (1/1) ... [2021-10-28 08:35:16,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:35:16,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:16,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:35:16,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:35:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:35:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:35:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:35:16,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:35:17,845 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:35:17,846 INFO L299 CfgBuilder]: Removed 106 assume(true) statements. [2021-10-28 08:35:17,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:17 BoogieIcfgContainer [2021-10-28 08:35:17,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:35:17,849 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:35:17,850 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:35:17,857 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:35:17,858 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:35:17,858 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:35:16" (1/3) ... [2021-10-28 08:35:17,860 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64a93da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:35:17, skipping insertion in model container [2021-10-28 08:35:17,860 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:35:17,860 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:16" (2/3) ... [2021-10-28 08:35:17,861 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64a93da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:35:17, skipping insertion in model container [2021-10-28 08:35:17,862 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:35:17,862 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:17" (3/3) ... [2021-10-28 08:35:17,864 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2021-10-28 08:35:17,920 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:35:17,920 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:35:17,920 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:35:17,920 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:35:17,920 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:35:17,921 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:35:17,921 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:35:17,921 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:35:17,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 83 states, 82 states have (on average 1.5365853658536586) internal successors, (126), 82 states have internal predecessors, (126), 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 08:35:17,981 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-28 08:35:17,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:35:17,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:35:17,990 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:35:17,990 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:17,990 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:35:17,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 83 states, 82 states have (on average 1.5365853658536586) internal successors, (126), 82 states have internal predecessors, (126), 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 08:35:17,998 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-28 08:35:17,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:35:17,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:35:18,005 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:35:18,005 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:18,020 INFO L791 eck$LassoCheckResult]: Stem: 62#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 41#L-1true havoc main_#res;havoc main_#t~ret33, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 55#L549true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 75#L557true main_#t~ret33 := valid_product_#res;main_~tmp~4 := main_#t~ret33;havoc main_#t~ret33; 5#L419true assume 0 != main_~tmp~4; 18#L393true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 59#L315-1true [2021-10-28 08:35:18,023 INFO L793 eck$LassoCheckResult]: Loop: 59#L315-1true assume !false; 35#L66true assume test_~splverifierCounter~0 < 4; 60#L67true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 73#L75true assume !(0 != test_~tmp~0); 28#L75-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 37#L85true assume !(0 != test_~tmp___0~0); 63#L85-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 21#L95true assume 0 != test_~tmp___2~0; 22#L101-1true assume !(0 != ~pumpRunning~0); 74#L138true assume !(0 != ~systemActive~0); 70#L145true havoc __utac_acc__Specification3_spec__1_#t~ret30, __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 46#L476true __utac_acc__Specification3_spec__1_#t~ret30 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret30;havoc __utac_acc__Specification3_spec__1_#t~ret30; 15#L309true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 59#L315-1true [2021-10-28 08:35:18,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:18,030 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 08:35:18,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:18,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141951609] [2021-10-28 08:35:18,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:18,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:18,351 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:35:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:18,569 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:35:18,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:18,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1672941122, now seen corresponding path program 1 times [2021-10-28 08:35:18,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:18,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148110831] [2021-10-28 08:35:18,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:18,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:18,589 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:35:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:18,599 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:35:18,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:18,601 INFO L85 PathProgramCache]: Analyzing trace with hash 41337816, now seen corresponding path program 1 times [2021-10-28 08:35:18,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:18,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372428693] [2021-10-28 08:35:18,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:18,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:18,824 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 08:35:18,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:18,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372428693] [2021-10-28 08:35:18,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372428693] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:18,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:35:18,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:35:18,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213738714] [2021-10-28 08:35:18,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:19,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:35:19,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:35:19,017 INFO L87 Difference]: Start difference. First operand has 83 states, 82 states have (on average 1.5365853658536586) internal successors, (126), 82 states have internal predecessors, (126), 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 08:35:19,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:19,301 INFO L93 Difference]: Finished difference Result 216 states and 303 transitions. [2021-10-28 08:35:19,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:35:19,303 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 216 states and 303 transitions. [2021-10-28 08:35:19,312 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 137 [2021-10-28 08:35:19,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 216 states to 195 states and 282 transitions. [2021-10-28 08:35:19,320 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2021-10-28 08:35:19,321 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2021-10-28 08:35:19,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 282 transitions. [2021-10-28 08:35:19,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:35:19,323 INFO L681 BuchiCegarLoop]: Abstraction has 195 states and 282 transitions. [2021-10-28 08:35:19,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 282 transitions. [2021-10-28 08:35:19,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 123. [2021-10-28 08:35:19,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 123 states have (on average 1.4390243902439024) internal successors, (177), 122 states have internal predecessors, (177), 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 08:35:19,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 177 transitions. [2021-10-28 08:35:19,361 INFO L704 BuchiCegarLoop]: Abstraction has 123 states and 177 transitions. [2021-10-28 08:35:19,361 INFO L587 BuchiCegarLoop]: Abstraction has 123 states and 177 transitions. [2021-10-28 08:35:19,361 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:35:19,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states and 177 transitions. [2021-10-28 08:35:19,364 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 86 [2021-10-28 08:35:19,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:35:19,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:35:19,365 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:35:19,365 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:19,365 INFO L791 eck$LassoCheckResult]: Stem: 387#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 377#L-1 havoc main_#res;havoc main_#t~ret33, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 378#L549 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 385#L557 main_#t~ret33 := valid_product_#res;main_~tmp~4 := main_#t~ret33;havoc main_#t~ret33; 319#L419 assume 0 != main_~tmp~4; 320#L393 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 336#L315-1 [2021-10-28 08:35:19,365 INFO L793 eck$LassoCheckResult]: Loop: 336#L315-1 assume !false; 367#L66 assume test_~splverifierCounter~0 < 4; 368#L67 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 386#L75 assume !(0 != test_~tmp~0); 357#L75-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 358#L85 assume !(0 != test_~tmp___0~0); 370#L85-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 346#L95 assume 0 != test_~tmp___2~0; 347#L101-1 assume !(0 != ~pumpRunning~0); 350#L138 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 392#L170 assume !(0 == ~pumpRunning~0); 389#L145 havoc __utac_acc__Specification3_spec__1_#t~ret30, __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 380#L476 __utac_acc__Specification3_spec__1_#t~ret30 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret30;havoc __utac_acc__Specification3_spec__1_#t~ret30; 335#L309 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 336#L315-1 [2021-10-28 08:35:19,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:19,366 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 08:35:19,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:19,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790472256] [2021-10-28 08:35:19,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:19,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:19,417 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:35:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:19,513 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:35:19,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:19,514 INFO L85 PathProgramCache]: Analyzing trace with hash -353177362, now seen corresponding path program 1 times [2021-10-28 08:35:19,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:19,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900116603] [2021-10-28 08:35:19,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:19,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:19,537 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 08:35:19,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:19,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900116603] [2021-10-28 08:35:19,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900116603] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:19,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:35:19,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:35:19,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060009031] [2021-10-28 08:35:19,547 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:35:19,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:19,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:35:19,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:35:19,549 INFO L87 Difference]: Start difference. First operand 123 states and 177 transitions. cyclomatic complexity: 57 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 08:35:19,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:19,657 INFO L93 Difference]: Finished difference Result 168 states and 229 transitions. [2021-10-28 08:35:19,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:35:19,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 168 states and 229 transitions. [2021-10-28 08:35:19,660 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 120 [2021-10-28 08:35:19,662 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 168 states to 168 states and 229 transitions. [2021-10-28 08:35:19,662 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 168 [2021-10-28 08:35:19,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 168 [2021-10-28 08:35:19,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 168 states and 229 transitions. [2021-10-28 08:35:19,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:35:19,664 INFO L681 BuchiCegarLoop]: Abstraction has 168 states and 229 transitions. [2021-10-28 08:35:19,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states and 229 transitions. [2021-10-28 08:35:19,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-10-28 08:35:19,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 168 states have (on average 1.3630952380952381) internal successors, (229), 167 states have internal predecessors, (229), 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 08:35:19,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 229 transitions. [2021-10-28 08:35:19,691 INFO L704 BuchiCegarLoop]: Abstraction has 168 states and 229 transitions. [2021-10-28 08:35:19,691 INFO L587 BuchiCegarLoop]: Abstraction has 168 states and 229 transitions. [2021-10-28 08:35:19,691 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:35:19,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 229 transitions. [2021-10-28 08:35:19,693 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 120 [2021-10-28 08:35:19,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:35:19,693 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:35:19,694 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:35:19,694 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 08:35:19,694 INFO L791 eck$LassoCheckResult]: Stem: 696#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 679#L-1 havoc main_#res;havoc main_#t~ret33, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 680#L549 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 691#L557 main_#t~ret33 := valid_product_#res;main_~tmp~4 := main_#t~ret33;havoc main_#t~ret33; 616#L419 assume 0 != main_~tmp~4; 617#L393 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 642#L315-1 [2021-10-28 08:35:19,695 INFO L793 eck$LassoCheckResult]: Loop: 642#L315-1 assume !false; 694#L66 assume test_~splverifierCounter~0 < 4; 758#L67 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 708#L75 assume !(0 != test_~tmp~0); 658#L75-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 659#L85 assume !(0 != test_~tmp___0~0); 672#L85-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 762#L95 assume 0 != test_~tmp___2~0; 761#L101-1 assume !(0 != ~pumpRunning~0); 710#L138 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 711#L170 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 633#L516 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 634#L521 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 653#L272 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~1 := 0; 645#L272-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 646#L278 processEnvironment_#t~ret11 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret11;havoc processEnvironment_#t~ret11; 705#L174 assume !(0 != processEnvironment_~tmp~1); 707#L145 havoc __utac_acc__Specification3_spec__1_#t~ret30, __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 760#L476 __utac_acc__Specification3_spec__1_#t~ret30 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret30;havoc __utac_acc__Specification3_spec__1_#t~ret30; 759#L309 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 642#L315-1 [2021-10-28 08:35:19,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:19,695 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 08:35:19,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:19,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081999911] [2021-10-28 08:35:19,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:19,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:19,736 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:35:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:19,787 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:35:19,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:19,788 INFO L85 PathProgramCache]: Analyzing trace with hash -539551526, now seen corresponding path program 1 times [2021-10-28 08:35:19,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:19,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160941584] [2021-10-28 08:35:19,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:19,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:19,794 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:35:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:19,801 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:35:19,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:19,801 INFO L85 PathProgramCache]: Analyzing trace with hash -524839552, now seen corresponding path program 1 times [2021-10-28 08:35:19,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:19,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461246164] [2021-10-28 08:35:19,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:19,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:19,916 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 08:35:19,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:19,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461246164] [2021-10-28 08:35:19,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461246164] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:19,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:35:19,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:35:19,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190204983] [2021-10-28 08:35:20,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:20,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:35:20,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:35:20,166 INFO L87 Difference]: Start difference. First operand 168 states and 229 transitions. cyclomatic complexity: 64 Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 08:35:20,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:20,280 INFO L93 Difference]: Finished difference Result 548 states and 750 transitions. [2021-10-28 08:35:20,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:35:20,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 548 states and 750 transitions. [2021-10-28 08:35:20,290 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 414 [2021-10-28 08:35:20,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 548 states to 548 states and 750 transitions. [2021-10-28 08:35:20,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 548 [2021-10-28 08:35:20,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 548 [2021-10-28 08:35:20,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 548 states and 750 transitions. [2021-10-28 08:35:20,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:35:20,310 INFO L681 BuchiCegarLoop]: Abstraction has 548 states and 750 transitions. [2021-10-28 08:35:20,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states and 750 transitions. [2021-10-28 08:35:20,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 330. [2021-10-28 08:35:20,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 330 states have (on average 1.3333333333333333) internal successors, (440), 329 states have internal predecessors, (440), 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 08:35:20,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 440 transitions. [2021-10-28 08:35:20,352 INFO L704 BuchiCegarLoop]: Abstraction has 330 states and 440 transitions. [2021-10-28 08:35:20,352 INFO L587 BuchiCegarLoop]: Abstraction has 330 states and 440 transitions. [2021-10-28 08:35:20,353 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 08:35:20,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 330 states and 440 transitions. [2021-10-28 08:35:20,355 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 240 [2021-10-28 08:35:20,357 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:35:20,357 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:35:20,358 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:35:20,358 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, 1, 1] [2021-10-28 08:35:20,358 INFO L791 eck$LassoCheckResult]: Stem: 1433#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1418#L-1 havoc main_#res;havoc main_#t~ret33, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 1419#L549 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1429#L557 main_#t~ret33 := valid_product_#res;main_~tmp~4 := main_#t~ret33;havoc main_#t~ret33; 1350#L419 assume 0 != main_~tmp~4; 1351#L393 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1376#L315-1 [2021-10-28 08:35:20,359 INFO L793 eck$LassoCheckResult]: Loop: 1376#L315-1 assume !false; 1593#L66 assume test_~splverifierCounter~0 < 4; 1594#L67 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 1663#L75 assume !(0 != test_~tmp~0); 1661#L75-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 1660#L85 assume !(0 != test_~tmp___0~0); 1648#L85-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 1644#L95 assume 0 != test_~tmp___2~0; 1381#L101-1 assume !(0 != ~pumpRunning~0); 1382#L138 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1445#L170 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1367#L516 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1368#L521 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 1388#L272 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~1 := 0; 1379#L272-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1380#L278 processEnvironment_#t~ret11 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret11;havoc processEnvironment_#t~ret11; 1441#L174 assume !(0 != processEnvironment_~tmp~1); 1443#L145 havoc __utac_acc__Specification3_spec__1_#t~ret30, __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 1600#L476 __utac_acc__Specification3_spec__1_#t~ret30 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret30;havoc __utac_acc__Specification3_spec__1_#t~ret30; 1599#L309 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1598#L508 __utac_acc__Specification3_spec__1_#t~ret31 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 1596#L315 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1376#L315-1 [2021-10-28 08:35:20,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:20,359 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2021-10-28 08:35:20,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:20,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884380360] [2021-10-28 08:35:20,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:20,360 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:20,418 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:35:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:20,501 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:35:20,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:20,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1182032684, now seen corresponding path program 1 times [2021-10-28 08:35:20,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:20,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233754425] [2021-10-28 08:35:20,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:20,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:20,508 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:35:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:20,515 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:35:20,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:20,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1859629486, now seen corresponding path program 1 times [2021-10-28 08:35:20,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:20,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532462784] [2021-10-28 08:35:20,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:20,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:20,549 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:35:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:20,595 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:36:28,059 WARN L207 SmtUtils]: Spent 1.12 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 08:37:37,844 WARN L207 SmtUtils]: Spent 35.53 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 08:37:38,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:37:38 BoogieIcfgContainer [2021-10-28 08:37:38,009 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:37:38,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:37:38,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:37:38,010 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:37:38,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:17" (3/4) ... [2021-10-28 08:37:38,014 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 08:37:38,077 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:37:38,077 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:37:38,079 INFO L168 Benchmark]: Toolchain (without parser) took 141942.42 ms. Allocated memory was 100.7 MB in the beginning and 155.2 MB in the end (delta: 54.5 MB). Free memory was 69.0 MB in the beginning and 116.3 MB in the end (delta: -47.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:37:38,079 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:37:38,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 496.10 ms. Allocated memory is still 100.7 MB. Free memory was 68.8 MB in the beginning and 69.4 MB in the end (delta: -608.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:37:38,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.12 ms. Allocated memory is still 100.7 MB. Free memory was 69.4 MB in the beginning and 66.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:37:38,081 INFO L168 Benchmark]: Boogie Preprocessor took 81.28 ms. Allocated memory is still 100.7 MB. Free memory was 66.5 MB in the beginning and 64.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:37:38,082 INFO L168 Benchmark]: RCFGBuilder took 1049.51 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 63.9 MB in the beginning and 84.5 MB in the end (delta: -20.6 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:37:38,083 INFO L168 Benchmark]: BuchiAutomizer took 140159.96 ms. Allocated memory was 121.6 MB in the beginning and 155.2 MB in the end (delta: 33.6 MB). Free memory was 84.5 MB in the beginning and 118.4 MB in the end (delta: -33.9 MB). Peak memory consumption was 89.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:37:38,084 INFO L168 Benchmark]: Witness Printer took 67.55 ms. Allocated memory is still 155.2 MB. Free memory was 118.4 MB in the beginning and 116.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:37:38,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 496.10 ms. Allocated memory is still 100.7 MB. Free memory was 68.8 MB in the beginning and 69.4 MB in the end (delta: -608.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.12 ms. Allocated memory is still 100.7 MB. Free memory was 69.4 MB in the beginning and 66.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.28 ms. Allocated memory is still 100.7 MB. Free memory was 66.5 MB in the beginning and 64.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1049.51 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 63.9 MB in the beginning and 84.5 MB in the end (delta: -20.6 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 140159.96 ms. Allocated memory was 121.6 MB in the beginning and 155.2 MB in the end (delta: 33.6 MB). Free memory was 84.5 MB in the beginning and 118.4 MB in the end (delta: -33.9 MB). Peak memory consumption was 89.3 MB. Max. memory is 16.1 GB. * Witness Printer took 67.55 ms. Allocated memory is still 155.2 MB. Free memory was 118.4 MB in the beginning and 116.3 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 330 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 140.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 139.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 290 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 330 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 396 SDtfs, 1042 SDslu, 1066 SDs, 0 SdLazy, 103 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3646} State at position 1 is {NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@172387db=69, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9b2a2e4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56658019=0, NULL=3646, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a83cb05=0, NULL=3664, NULL=3673, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7dc175e9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e42593c=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b6bfa13=0, NULL=3650, NULL=0, tmp___1=0, NULL=0, NULL=3669, NULL=3660, cleanupTimeShifts=4, tmp=0, tmp=0, NULL=3659, waterLevel=1, tmp___0=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=3649, tmp=1, NULL=0, \result=1, NULL=0, NULL=0, NULL=3648, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=3647, retValue_acc=1, NULL=3656, NULL=3651, tmp=0, head=0, NULL=0, NULL=0, NULL=3654, NULL=0, NULL=0, NULL=3672, retValue_acc=0, NULL=3663, NULL=0, NULL=3665, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7166ceb5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e58d6cb=0, NULL=3671, tmp___0=0, NULL=0, NULL=3653, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2885df52=0, NULL=3657, tmp___0=1, NULL=0, systemActive=1, \result=1, NULL=0, \result=0, retValue_acc=0, NULL=3658, NULL=3668, \result=0, NULL=3652, NULL=0, NULL=0, NULL=3667, NULL=3666, NULL=3662, retValue_acc=1, NULL=3674, tmp___2=69, splverifierCounter=0, NULL=0, \result=0, NULL=3661, tmp___1=0, NULL=0, NULL=0, NULL=3670, NULL=0, NULL=3655} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L433] int waterLevel = 1; [L434] int methaneLevelCritical = 0; [L740] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L410] int retValue_acc ; [L411] int tmp ; [L553] int retValue_acc ; [L556] retValue_acc = 1 [L557] return (retValue_acc); [L417] tmp = valid_product() [L419] COND TRUE \read(tmp) [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L138] COND FALSE !(\read(pumpRunning)) [L145] COND TRUE \read(systemActive) [L167] int tmp ; [L170] COND TRUE ! pumpRunning [L264] int retValue_acc ; [L265] int tmp ; [L266] int tmp___0 ; [L513] int retValue_acc ; [L516] COND TRUE waterLevel < 2 [L517] retValue_acc = 1 [L518] return (retValue_acc); [L270] tmp = isHighWaterSensorDry() [L272] COND TRUE \read(tmp) [L273] tmp___0 = 0 [L277] retValue_acc = tmp___0 [L278] return (retValue_acc); [L172] tmp = isHighWaterLevel() [L174] COND FALSE !(\read(tmp)) [L301] int tmp ; [L302] int tmp___0 ; [L303] int tmp___1 ; [L472] int retValue_acc ; [L475] retValue_acc = methaneLevelCritical [L476] return (retValue_acc); [L307] tmp = isMethaneLevelCritical() [L309] COND FALSE !(\read(tmp)) [L504] int retValue_acc ; [L507] retValue_acc = waterLevel [L508] return (retValue_acc); [L313] tmp___0 = getWaterLevel() [L315] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 08:37:38,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74b8e9a4-d72a-4bcd-82d2-685cc5e12bd9/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...