./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt --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 4f185c5a4952179bf0341452c73ac94d6127cab1 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 01:19:09,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:19:09,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:19:09,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:19:09,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:19:09,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:19:09,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:19:09,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:19:09,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:19:09,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:19:09,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:19:09,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:19:09,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:19:09,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:19:09,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:19:09,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:19:09,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:19:09,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:19:09,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:19:09,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:19:09,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:19:09,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:19:09,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:19:09,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:19:09,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:19:09,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:19:09,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:19:09,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:19:09,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:19:09,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:19:09,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:19:09,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:19:09,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:19:09,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:19:09,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:19:09,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:19:09,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:19:09,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:19:09,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:19:09,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:19:09,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:19:09,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:19:09,695 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:19:09,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:19:09,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:19:09,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:19:09,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:19:09,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:19:09,698 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:19:09,699 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:19:09,699 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:19:09,699 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:19:09,700 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:19:09,700 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:19:09,700 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:19:09,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:19:09,701 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:19:09,701 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:19:09,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:19:09,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:19:09,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:19:09,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:19:09,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:19:09,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:19:09,702 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:19:09,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:19:09,703 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:19:09,703 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:19:09,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:19:09,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:19:09,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:19:09,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:19:09,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:19:09,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:19:09,707 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:19:09,707 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_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f185c5a4952179bf0341452c73ac94d6127cab1 [2021-10-13 01:19:09,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:19:09,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:19:10,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:19:10,002 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:19:10,006 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:19:10,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2021-10-13 01:19:10,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/data/e9c12208c/186f94a30e25460a9537e7b29bedbd88/FLAG3fdd5a3eb [2021-10-13 01:19:10,595 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:19:10,596 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2021-10-13 01:19:10,624 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/data/e9c12208c/186f94a30e25460a9537e7b29bedbd88/FLAG3fdd5a3eb [2021-10-13 01:19:11,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/data/e9c12208c/186f94a30e25460a9537e7b29bedbd88 [2021-10-13 01:19:11,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:19:11,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:19:11,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:19:11,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:19:11,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:19:11,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:19:11" (1/1) ... [2021-10-13 01:19:11,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33740ad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:11, skipping insertion in model container [2021-10-13 01:19:11,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:19:11" (1/1) ... [2021-10-13 01:19:11,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:19:11,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:19:11,437 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_d000a409-2765-41fc-a823-aa5fa3252d63/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c[18853,18866] [2021-10-13 01:19:11,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:19:11,448 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:19:11,542 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_d000a409-2765-41fc-a823-aa5fa3252d63/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c[18853,18866] [2021-10-13 01:19:11,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:19:11,571 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:19:11,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:11 WrapperNode [2021-10-13 01:19:11,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:19:11,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:19:11,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:19:11,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:19:11,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:11" (1/1) ... [2021-10-13 01:19:11,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:11" (1/1) ... [2021-10-13 01:19:11,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:19:11,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:19:11,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:19:11,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:19:11,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:11" (1/1) ... [2021-10-13 01:19:11,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:11" (1/1) ... [2021-10-13 01:19:11,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:11" (1/1) ... [2021-10-13 01:19:11,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:11" (1/1) ... [2021-10-13 01:19:11,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:11" (1/1) ... [2021-10-13 01:19:11,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:11" (1/1) ... [2021-10-13 01:19:11,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:11" (1/1) ... [2021-10-13 01:19:11,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:19:11,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:19:11,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:19:11,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:19:11,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:11" (1/1) ... [2021-10-13 01:19:11,766 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:19:11,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:19:11,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:19:11,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:19:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:19:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:19:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:19:11,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:19:12,793 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:19:12,793 INFO L299 CfgBuilder]: Removed 164 assume(true) statements. [2021-10-13 01:19:12,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:19:12 BoogieIcfgContainer [2021-10-13 01:19:12,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:19:12,797 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:19:12,798 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:19:12,804 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:19:12,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:19:12,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:19:11" (1/3) ... [2021-10-13 01:19:12,806 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77a6af28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:19:12, skipping insertion in model container [2021-10-13 01:19:12,806 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:19:12,807 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:11" (2/3) ... [2021-10-13 01:19:12,807 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77a6af28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:19:12, skipping insertion in model container [2021-10-13 01:19:12,807 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:19:12,807 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:19:12" (3/3) ... [2021-10-13 01:19:12,809 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2021-10-13 01:19:12,866 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:19:12,866 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:19:12,866 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:19:12,866 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:19:12,866 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:19:12,866 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:19:12,867 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:19:12,867 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:19:12,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 120 states, 119 states have (on average 1.546218487394958) internal successors, (184), 119 states have internal predecessors, (184), 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) [2021-10-13 01:19:12,918 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2021-10-13 01:19:12,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:19:12,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:19:12,925 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:19:12,925 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:19:12,925 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:19:12,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 120 states, 119 states have (on average 1.546218487394958) internal successors, (184), 119 states have internal predecessors, (184), 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) [2021-10-13 01:19:12,933 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2021-10-13 01:19:12,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:19:12,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:19:12,934 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:19:12,934 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:19:12,938 INFO L791 eck$LassoCheckResult]: Stem: 106#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(13);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 43#L-1true havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~4, main_~tmp~5;havoc main_~retValue_acc~4;havoc main_~tmp~5; 77#L510true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 13#L518true main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 17#L434true assume 0 != main_~tmp~5; 41#L406true ~methAndRunningLastTime~0 := 0; 7#L455true 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; 69#L466-1true [2021-10-13 01:19:12,939 INFO L793 eck$LassoCheckResult]: Loop: 69#L466-1true assume !false; 94#L59true assume test_~splverifierCounter~0 < 4; 114#L60true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 109#L68true assume !(0 != test_~tmp~0); 84#L68-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 22#L78true assume !(0 != test_~tmp___0~0); 81#L78-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 86#L88true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 67#L96-1true assume !(0 != ~pumpRunning~0); 108#L134true assume !(0 != ~systemActive~0); 45#L141true havoc __utac_acc__Specification2_spec__2_#t~ret33, __utac_acc__Specification2_spec__2_#t~ret34, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 47#L567true __utac_acc__Specification2_spec__2_#t~ret33 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret33;havoc __utac_acc__Specification2_spec__2_#t~ret33; 116#L466true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 69#L466-1true [2021-10-13 01:19:12,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:19:12,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 01:19:12,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:19:12,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155993594] [2021-10-13 01:19:12,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:19:12,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:19:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:19:13,216 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:19:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:19:13,367 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:19:13,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:19:13,385 INFO L82 PathProgramCache]: Analyzing trace with hash 14050900, now seen corresponding path program 1 times [2021-10-13 01:19:13,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:19:13,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111524570] [2021-10-13 01:19:13,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:19:13,386 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:19:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:19:13,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:19:13,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:19:13,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111524570] [2021-10-13 01:19:13,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111524570] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:19:13,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:19:13,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:19:13,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222346814] [2021-10-13 01:19:13,459 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 01:19:13,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:19:13,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:19:13,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:19:13,477 INFO L87 Difference]: Start difference. First operand has 120 states, 119 states have (on average 1.546218487394958) internal successors, (184), 119 states have internal predecessors, (184), 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 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-10-13 01:19:13,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:19:13,543 INFO L93 Difference]: Finished difference Result 233 states and 343 transitions. [2021-10-13 01:19:13,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:19:13,546 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 233 states and 343 transitions. [2021-10-13 01:19:13,559 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 150 [2021-10-13 01:19:13,570 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 233 states to 219 states and 328 transitions. [2021-10-13 01:19:13,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2021-10-13 01:19:13,577 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2021-10-13 01:19:13,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 328 transitions. [2021-10-13 01:19:13,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:19:13,581 INFO L681 BuchiCegarLoop]: Abstraction has 219 states and 328 transitions. [2021-10-13 01:19:13,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 328 transitions. [2021-10-13 01:19:13,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2021-10-13 01:19:13,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 217 states have (on average 1.4976958525345623) internal successors, (325), 216 states have internal predecessors, (325), 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) [2021-10-13 01:19:13,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 325 transitions. [2021-10-13 01:19:13,631 INFO L704 BuchiCegarLoop]: Abstraction has 217 states and 325 transitions. [2021-10-13 01:19:13,631 INFO L587 BuchiCegarLoop]: Abstraction has 217 states and 325 transitions. [2021-10-13 01:19:13,631 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:19:13,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 217 states and 325 transitions. [2021-10-13 01:19:13,635 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2021-10-13 01:19:13,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:19:13,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:19:13,636 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:19:13,636 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:19:13,637 INFO L791 eck$LassoCheckResult]: Stem: 477#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(13);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 428#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~4, main_~tmp~5;havoc main_~retValue_acc~4;havoc main_~tmp~5; 429#L510 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 380#L518 main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 381#L434 assume 0 != main_~tmp~5; 388#L406 ~methAndRunningLastTime~0 := 0; 368#L455 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; 369#L466-1 [2021-10-13 01:19:13,637 INFO L793 eck$LassoCheckResult]: Loop: 369#L466-1 assume !false; 532#L59 assume test_~splverifierCounter~0 < 4; 533#L60 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 570#L68 assume !(0 != test_~tmp~0); 568#L68-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 567#L78 assume !(0 != test_~tmp___0~0); 565#L78-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 564#L88 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 470#L96-1 assume !(0 != ~pumpRunning~0); 558#L134 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 556#L192 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 545#L166-1 assume !(0 == ~pumpRunning~0); 540#L141 havoc __utac_acc__Specification2_spec__2_#t~ret33, __utac_acc__Specification2_spec__2_#t~ret34, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 539#L567 __utac_acc__Specification2_spec__2_#t~ret33 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret33;havoc __utac_acc__Specification2_spec__2_#t~ret33; 537#L466 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 369#L466-1 [2021-10-13 01:19:13,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:19:13,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 01:19:13,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:19:13,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555252664] [2021-10-13 01:19:13,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:19:13,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:19:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:19:13,746 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:19:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:19:13,811 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:19:13,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:19:13,812 INFO L82 PathProgramCache]: Analyzing trace with hash -2022678158, now seen corresponding path program 1 times [2021-10-13 01:19:13,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:19:13,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543317493] [2021-10-13 01:19:13,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:19:13,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:19:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:19:13,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:19:13,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:19:13,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543317493] [2021-10-13 01:19:13,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543317493] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:19:13,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:19:13,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:19:13,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907150134] [2021-10-13 01:19:13,831 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 01:19:13,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:19:13,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:19:13,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:19:13,833 INFO L87 Difference]: Start difference. First operand 217 states and 325 transitions. cyclomatic complexity: 111 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-13 01:19:13,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:19:13,946 INFO L93 Difference]: Finished difference Result 306 states and 437 transitions. [2021-10-13 01:19:13,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:19:13,951 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 306 states and 437 transitions. [2021-10-13 01:19:13,956 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2021-10-13 01:19:13,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 306 states to 306 states and 437 transitions. [2021-10-13 01:19:13,962 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 306 [2021-10-13 01:19:13,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 306 [2021-10-13 01:19:13,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 306 states and 437 transitions. [2021-10-13 01:19:13,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:19:13,966 INFO L681 BuchiCegarLoop]: Abstraction has 306 states and 437 transitions. [2021-10-13 01:19:13,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states and 437 transitions. [2021-10-13 01:19:13,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2021-10-13 01:19:13,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 306 states have (on average 1.4281045751633987) internal successors, (437), 305 states have internal predecessors, (437), 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) [2021-10-13 01:19:13,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 437 transitions. [2021-10-13 01:19:13,997 INFO L704 BuchiCegarLoop]: Abstraction has 306 states and 437 transitions. [2021-10-13 01:19:13,997 INFO L587 BuchiCegarLoop]: Abstraction has 306 states and 437 transitions. [2021-10-13 01:19:13,997 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:19:13,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 306 states and 437 transitions. [2021-10-13 01:19:14,000 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2021-10-13 01:19:14,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:19:14,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:19:14,002 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:19:14,002 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] [2021-10-13 01:19:14,002 INFO L791 eck$LassoCheckResult]: Stem: 1024#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(13);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 956#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~4, main_~tmp~5;havoc main_~retValue_acc~4;havoc main_~tmp~5; 957#L510 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 910#L518 main_#t~ret32 := valid_product_#res;main_~tmp~5 := main_#t~ret32;havoc main_#t~ret32; 911#L434 assume 0 != main_~tmp~5; 918#L406 ~methAndRunningLastTime~0 := 0; 897#L455 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; 898#L466-1 [2021-10-13 01:19:14,002 INFO L793 eck$LassoCheckResult]: Loop: 898#L466-1 assume !false; 1057#L59 assume test_~splverifierCounter~0 < 4; 1029#L60 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 1030#L68 assume !(0 != test_~tmp~0); 1008#L68-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 1009#L78 assume !(0 != test_~tmp___0~0); 1005#L78-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 1006#L88 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 991#L96-1 assume !(0 != ~pumpRunning~0); 992#L134 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1025#L192 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 1109#L166-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1115#L607-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1114#L612-1 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 1113#L294-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 1112#L294-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1111#L300-1 processEnvironment__wrappee__highWaterSensor_#t~ret11 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret11;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11; 1098#L170-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 1066#L141 havoc __utac_acc__Specification2_spec__2_#t~ret33, __utac_acc__Specification2_spec__2_#t~ret34, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 1067#L567 __utac_acc__Specification2_spec__2_#t~ret33 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret33;havoc __utac_acc__Specification2_spec__2_#t~ret33; 1060#L466 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 898#L466-1 [2021-10-13 01:19:14,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:19:14,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-13 01:19:14,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:19:14,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644670331] [2021-10-13 01:19:14,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:19:14,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:19:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:19:14,052 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:19:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:19:14,156 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:19:14,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:19:14,157 INFO L82 PathProgramCache]: Analyzing trace with hash -2108772386, now seen corresponding path program 1 times [2021-10-13 01:19:14,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:19:14,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310097690] [2021-10-13 01:19:14,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:19:14,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:19:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:19:14,168 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:19:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:19:14,179 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:19:14,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:19:14,180 INFO L82 PathProgramCache]: Analyzing trace with hash -335630760, now seen corresponding path program 1 times [2021-10-13 01:19:14,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:19:14,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500607712] [2021-10-13 01:19:14,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:19:14,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:19:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:19:14,226 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:19:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:19:14,304 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:20:17,024 WARN L207 SmtUtils]: Spent 1.04 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 01:21:36,084 WARN L207 SmtUtils]: Spent 38.01 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 01:21:36,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:21:36 BoogieIcfgContainer [2021-10-13 01:21:36,257 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:21:36,258 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:21:36,258 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:21:36,259 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:21:36,259 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:19:12" (3/4) ... [2021-10-13 01:21:36,263 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:21:36,328 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:21:36,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:21:36,330 INFO L168 Benchmark]: Toolchain (without parser) took 145275.38 ms. Allocated memory was 107.0 MB in the beginning and 163.6 MB in the end (delta: 56.6 MB). Free memory was 64.2 MB in the beginning and 54.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 66.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:36,331 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 107.0 MB. Free memory is still 82.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:21:36,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.09 ms. Allocated memory is still 107.0 MB. Free memory was 64.0 MB in the beginning and 71.7 MB in the end (delta: -7.7 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:36,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.66 ms. Allocated memory is still 107.0 MB. Free memory was 71.7 MB in the beginning and 67.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:36,333 INFO L168 Benchmark]: Boogie Preprocessor took 73.64 ms. Allocated memory is still 107.0 MB. Free memory was 67.9 MB in the beginning and 65.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:36,334 INFO L168 Benchmark]: RCFGBuilder took 1037.47 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 65.3 MB in the beginning and 93.2 MB in the end (delta: -27.9 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:36,335 INFO L168 Benchmark]: BuchiAutomizer took 143460.10 ms. Allocated memory was 132.1 MB in the beginning and 163.6 MB in the end (delta: 31.5 MB). Free memory was 93.2 MB in the beginning and 56.6 MB in the end (delta: 36.6 MB). Peak memory consumption was 92.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:36,336 INFO L168 Benchmark]: Witness Printer took 70.72 ms. Allocated memory is still 163.6 MB. Free memory was 56.6 MB in the beginning and 54.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:21:36,340 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 107.0 MB. Free memory is still 82.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 516.09 ms. Allocated memory is still 107.0 MB. Free memory was 64.0 MB in the beginning and 71.7 MB in the end (delta: -7.7 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.66 ms. Allocated memory is still 107.0 MB. Free memory was 71.7 MB in the beginning and 67.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.64 ms. Allocated memory is still 107.0 MB. Free memory was 67.9 MB in the beginning and 65.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1037.47 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 65.3 MB in the beginning and 93.2 MB in the end (delta: -27.9 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 143460.10 ms. Allocated memory was 132.1 MB in the beginning and 163.6 MB in the end (delta: 31.5 MB). Free memory was 93.2 MB in the beginning and 56.6 MB in the end (delta: 36.6 MB). Peak memory consumption was 92.9 MB. Max. memory is 16.1 GB. * Witness Printer took 70.72 ms. Allocated memory is still 163.6 MB. Free memory was 56.6 MB in the beginning and 54.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 306 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 143.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 142.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 65.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 306 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 340 SDtfs, 285 SDslu, 236 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 88.3ms Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 58]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=10775} State at position 1 is {NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fc40a4a=74, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c1ff3de=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a6d5366=0, NULL=10775, NULL=0, NULL=0, NULL=10801, NULL=10788, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9bc77e9=0, NULL=0, retValue_acc=0, NULL=10795, NULL=0, tmp___1=0, NULL=10793, NULL=10787, NULL=0, NULL=10791, cleanupTimeShifts=4, tmp=0, NULL=10803, NULL=10789, NULL=0, NULL=0, waterLevel=1, tmp___0=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=10797, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44e6e513=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c399ed5=0, NULL=0, tmp=1, NULL=0, NULL=10798, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67f36686=0, NULL=0, methAndRunningLastTime=0, NULL=10796, NULL=10799, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fec57f7=0, head=0, NULL=10781, NULL=0, NULL=0, NULL=10782, NULL=10777, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c9a75c3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30dde3c4=0, NULL=10785, tmp___0=0, NULL=0, NULL=0, NULL=10802, NULL=10792, NULL=0, NULL=0, tmp=0, NULL=10780, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=10790, retValue_acc=0, \result=0, NULL=10783, \result=0, NULL=10778, NULL=0, NULL=10784, NULL=0, NULL=0, retValue_acc=1, NULL=10794, NULL=10786, tmp___0=0, tmp___2=74, splverifierCounter=0, NULL=0, \result=0, NULL=10776, NULL=10779, NULL=10800, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L126] int pumpRunning = 0; [L127] int systemActive = 1; [L347] int cleanupTimeShifts = 4; [L449] int methAndRunningLastTime ; [L524] int waterLevel = 1; [L525] int methaneLevelCritical = 0; [L796] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L425] int retValue_acc ; [L426] int tmp ; [L514] int retValue_acc ; [L517] retValue_acc = 1 [L518] return (retValue_acc); [L432] tmp = valid_product() [L434] COND TRUE \read(tmp) [L454] methAndRunningLastTime = 0 [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 Loop: [L58] COND TRUE 1 [L60] COND TRUE splverifierCounter < 4 [L66] tmp = __VERIFIER_nondet_int() [L68] COND FALSE !(\read(tmp)) [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L342] systemActive = 1 [L134] COND FALSE !(\read(pumpRunning)) [L141] COND TRUE \read(systemActive) [L189] int tmp ; [L192] COND FALSE !(\read(pumpRunning)) [L163] int tmp ; [L166] COND TRUE ! pumpRunning [L286] int retValue_acc ; [L287] int tmp ; [L288] int tmp___0 ; [L604] int retValue_acc ; [L607] COND TRUE waterLevel < 2 [L608] retValue_acc = 1 [L609] return (retValue_acc); [L292] tmp = isHighWaterSensorDry() [L294] COND TRUE \read(tmp) [L295] tmp___0 = 0 [L299] retValue_acc = tmp___0 [L300] return (retValue_acc); [L168] tmp = isHighWaterLevel() [L170] COND FALSE !(\read(tmp)) [L459] int tmp ; [L460] int tmp___0 ; [L563] int retValue_acc ; [L566] retValue_acc = methaneLevelCritical [L567] return (retValue_acc); [L464] tmp = isMethaneLevelCritical() [L466] COND FALSE !(\read(tmp)) [L482] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:21:36,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000a409-2765-41fc-a823-aa5fa3252d63/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...